Data Infrastructure IT Industry Related Resource Links U to Z

Data Infrastructure IT Industry Related Resource Links U to Z

IT Data Center and Data Infrastructure Industry Resources

Updated 2/20/2018

Following are some useful Data Infrastructure IT Industry Resource Links U to Z to cloud, virtual and traditional IT data infrastructure related web sites. The data infrastructure environment (servers, storage, IO and networking, hardware, software, services, virtual, container and cloud) is rapidly changing. You may encounter a missing URL, or a URL that has changed. This list is updated on a regular basis to reflect changes (additions, changes, and retirement).

Disclaimer and note: URL’s submitted for inclusion on this site will be reviewed for consideration and to be in generally accepted good taste in regards to the theme of this site.

Best effort has been made to validate and verify the data infrastructure URLs that appear on this page and web site however they are subject to change. The author and/or maintainer(s) of this page and web site make no endorsement to and assume no responsibility for the URLs and their content that are listed on this page.

Software Defined Data Infrastructure Essentials Book SDDC

Send an email note to info at storageio dot com that includes company name, URL, contact name, title and phone number along with a brief 40 character description to be considered for addition to the above data infrastructure list, or, to be removed. Note that Server StorageIO and UnlimitedIO LLC (e.g. StorageIO) does not sell, trade, barter, borrow or share your contact information per our Privacy and Disclosure policy. View related data infrastructure Server StorageIO content here, and signup for our free newsletter here.

Links A-E
Links F-J
Links K-O
Links P-T
Links U-Z
Other Links

  • ubuntu.com    Opensource Linux software and cloud tools
  • unisys.com    Server, storage and managed services
  • unitedlayer.com    Collocation and hosting services
  • unitrends.com    Data protection solutions
  • updraftplus.com/    WordPress Updraft Cloud Backup Plugin
  • uptimeinstitute.org    Uptime Institute
  • uptimesoftware.com    Capacity management tools
  • Logicalis   IT solutions and managed services
  • us.logicalis.com    Cloud, managed and data center services
  • usb.org    USB trade association
  • uscolo.com    Co-location facility and hosting service
  • usenix.org    LISA and data center forums
  • usgbc.org    United States Green Building Council
  • v3sys.com    VDI and desktop cloud solutions
  • vadiumtech.com    Security and encryption tools
  • varonis.com    Unstructured data management and protection
  • vaultive.com    Cloud encryption for hosted exchange
  • vaultize.com    Cloud backup, file and data sharing
  • vaultstor.com    Data protection and cloud storage services
  • vaultus.com   Cloud, colo and manged service hosting –
  • vbridges.com    Virtual desktop management tools
  • vce.com    Converged infrastructure solutions
  • vdbench     vdbench storage testing/workload generation tool
  • veeam.com    Virtual server data protection, reporting, monitoring, cap planning
  • vellosystems.com   Cloud infrastructure technology solutoins –
  • velobit.com    SSD cache software (Bought by WD)
  • veloxum.com   VM performance management tools Added 11/30/10
  • vembu.com    Backup data protection tools
  • Venus   Venus    AWS connect parter, Hosting/cloud/access services
  • venyu.com    Cloud hosting
  • verari.com    Blade servers and blade storage
  • verdiem.com    Infrastructure Resource Management (IRM) and energy reporting tools
  • vericept.com    Network monitoring software
  • Veritest.com    Third party testing service

  • verity.com    Data search, discovery, classification
  • versant.com    Object database management solutions
  • vertinsys.com    Server I/O virtualization
  • Vibe    AWS connect parter, Hosting/cloud/access services
  • victorinox.com    Swiss army knife and USB thumb drive
  • viewfinity.com    Rights management, audit and compliance
  • vigitrust.com    Security management tools
  • vikingmodular.com    FLASH SSD storage solutions
  • violin-memory.com    FLASH SSD storage solutions
  • vion.com    Value added reseller
  • vipreantivirus.com    Security, data loss, data leak prevention
  • virident.com    SSD based database management solutions (Bought by WD)
  • viridity.com    Data center and infrastructure resource management (IRM) tools
  • virsto.com    Server virtualization management tools (Bought by VMware)
  • virtensys.com    Virtual I/O and I/O virtualization (IOV)
  • virtualinstruments.com    SAN probes/analyzers (Formerly Finisar Analyzer tools)
  • VirtualIron.com    Server virtualization (Bought by Oracle)
  • VirtunetSystems    Storage I/O acceleration and cache tools for VMware
  • virtuon-inc.com    Cloud, virtualization IT consulting and staffing
  • visi.com    Managed service provider, cloud and hosting service
  • VisionSolutions.com    BC, DR and data protection solutions
  • visualstorageintelligence.com    Cross vendor cloud storage reporting and srmprovider
  • vitesse.com    Storage networking component supplier
  • vivisimo.com    eDiscovery and search
  • vizoncore.com    Virtualization tools and data protection for virtual servers
  • vizrt.com    Video management software tools
  • vkernel.com    VM performance tools (Bought by Quest, bought by Dell)
  • vmc.com    Cloud consulting and outsourcing
  • vmturbo.com    Cloud and virtualization workload management
  • vmware.com    Server virtualization software (Bought by EMC)
  • Vocus   Vocus    AWS connect parter, Hosting/cloud/access services
  • voltaire.com    InfiniBand Technology
  • vontu.com    Data loss prevention tools (Bought by Symantec)
  • Vormetric   Data security solutions
  • votela.com    Specialized network service provider
  • vscalesystems.com    Virtual and converged networking and consulting
  • vssmonitoring.com    Network monitoring
  • vwsolutions.com    Backup and data protection solutions
  • vyatta.com    Cloud and virtual networking, IOV
  • wanova.com    Desktop management solutions
  • wasabisystems.com    iSCSI storage
  • wdc.com    Western Digital Disk drives
  • WedgeNetworks.com    Security solutions
  • whiptailtech.com    Flash SSD solutions (Bought by Cisco)
  • Microsoft Skydrive   Cloud storage
  • windspring.com    Data management and DFR for mobile access
  • wipro.com    Business services
  • workscomputing.com    VAR
  • wovensystems.com    High speed networking switches
  • wwt.com    VAR/Systems integrator
  • wysdm.com    SRA and DPM management tools (Bought by EMC)
  • Xencode.com    Various open tools
  • XenData   Digital Archive solutions
  • xenos.com    Archive and data footprint reduction solutions
  • xfpmsa.org    10Gb multi-source trade group
  • xiotech.com    Renamed XIO: Storage sub-systems and software
  • xirin.com    Storage adapter (iSCSI) and chip vendor
  • xosoft.com    BC/DR and data protection replication tools (Bought by CA)
  • xsigo.com    I/O virtualization and service oriented connectivity – (Bought by Oracle)
  • xtreemfs.org    scaleout filesystem
  • xtremio.com    SSD startup – Bought by EMC
  • xyratex.com    Storage enclosures, subsystems, test equipmen, Lustre software (Bought by Seagate)t
  • xyxel.com    Networking technologies for cloud and consumer
  • yorktel.com    video solutions
  • Yosemitetech.com    Backup software (Bought by Barracuda)
  • yousendit.com    Cloud backup, storage and file sharing
  • zadarastorage.com    iSCSI cloud storage
  • zenoss.com    Converged, Virtual systems and cloud monitoring, DCIM
  • Zentera   Private cloud and IaaS solutions
  • zerto.com    Data protection for virtual environments
  • Zetera.com    Storage over IP alternative to iSCSI
  • zetta.net    Cloud storage solutions
  • zettapoint.com    Database management tools
  • zintrus.com    Systems development
  • zirtu.com    VDI management tools and platform
  • zlti.com    Email archive and management solutions
  • zmanda.com    Open source data backup
  • zoho.com    Online and cloud management solutions
  • zyrion.com    Network and systems monitoring and management

Where To Learn More

View additional NAS, NVMe, SSD, NVM, SCM, Data Infrastructure and HDD related topics via the following links.

Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

Software Defined Data Infrastructure Essentials Book SDDC

What This All Means

Visit the following additional data infrastructure and IT data center related links.

Links A-E
Links F-J
Links K-O
Links P-T
Links U-Z
Other Links

Ok, nuff said, for now.

Gs

Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

Six plus data center software defined management dashboards tools

Software defined data infrastructure management insight tools

server storage I/O trends

Updated 1/17/2018

Managing data infrastructures involves using software defined management dashboards tools. Recently I found in my inbox a link to a piece 6 Dashboards for Managing Every Modern Data Center that caught my attention. I was hoping to see who the six different datacenter technologies, dashboard solutions tools were instead of finding list of dashboard considerations for modern data centers and data infrastructures.

Turns out the piece was nothing more than a list of six items featured as part of the vendors (Sunbird) piece about what to look for in a dashboard (e.g. their product). Sure there were some of the usual key performance indicator (KPI) associated with or related to IT Service Management (ITSM), Data Center Infrastructure (Insight/Information) Management (DCIM), Configuration and Change management databases (CMDB), availability, capacity and Performance Management Databases (PMDB) among others.

  • Space
  • Inventory
  • Connectivity
  • Change
  • Environment
  • Power

Dashboard Discussions

Keep in mind however that there are many different types of dashboards (and consoles), some are active along with analytics including correlation, others are passive simply displaying. The focus area also various from physical data center facilities, to applications, to data infrastructures or components such as servers, storage, I/O networks, clouds, virtual, containers among others modern data centers.

Data Infrastructures and SDDI, SDDC, SDI
Data Infrastructures (hardware, software, services, servers, storage, I/O and networks)

This is where some context comes into play as there are different types of dashboards for various audience, technology and focus areas (e.g. domains) across data infrastructure (and other entities). For example do a google search of “dashboard” and see what appears, or “IT dashboard”, “data center dashboard” vs. “datacenter dashboard” among others.

Additional KPIs include:

  • Performance, availability, Capacity and Economic (PACE) attributes
  • Service Level Objectives (SLO), Service Level Agreements (SLAs)
  • Recovery Time Objectives (RTO), Recovery Point Objectives (SLO)
  • IT Service Management (ITSM) and Data Center Infrastructure Management (DCIM)
  • Configuration and Change Management (e.g. things part of CMDB)
  • Performance, availability and capacity (e.g. things part of PMDB)
  • Various focus and layers, cross domain functionality views
  • Costs management including subscriptions, licenses and others

IT Data Center and Data Infrastructure Dashboard Options

For those of you who have made it this far, while not a comprehensive list, the following are some examples of vendors, services or solutions that either are, or have an association with data center, as well as data infrastructure management. Some dashboards or tools are homogenous in that they only work within a given area of focus such as particular cloud, service provider, vendor or solution set. Others are heterogeneous or federated working across different services, solutions, vendors and domain focus areas. Think of these as software defined management (SDM), or, software defined data infrastructure (SDDI) management, software defined data center (SDDC) management among other variations for the modern information factory.

There is a mix of tools that run on site (e.g. on premise) or via cloud services (e.g. manager your on site from the cloud). Likewise, some are for fee, others subscription and some are open source. In addition some of the tools are turnkey while others are do it yourself (DiY) or allow you to customize. Also keep in mind that depending on what your tradecraft (skills, experience, expertise) interest area is, these may or may not be applicable to you, while relevant to others. For example some such as Spiceworks tend to be more helpdesk focused while others on other data center or data infrastructure areas.

There are dashboards for or from AWS, Canonical (Ubuntu), Dell including EMC, Google, HPE, IBM, Microsoft System Center and Azure, NetApp, OpenStack, Oracle, Rackspace, Redhat, Rightscale, Servicenow, Softlayer, Suse and VMware among others.

Blue Medora (various data infrastructure monitoring)
Cloudkitty (open source cloud rating and chargeback)
Collectd (data infrastructure collection and monitoring)
cPanel and whm (web and hosting dashboards)
data infrastructure sddi cpanel

Dashbuilder (customize your dashboard)
Datadog (super easy to get access, download, install, configure and use)
Domo (various data infrastructure monitoring tools)
Extrahop (still waiting to be able to download and try their bits vs. watching a demo)
Firescope (data infrastructure insight and awareness)
Freezer (open source dashboard tools)
Komprise (interesting solution, would like try, however lots of gated material)
Nagios (data infrastructure monitoring)
Openit (data infrastructure tracking, report, monitoring)
Opvizor (data infrastructure monitoring and reporting)

storageio datadog dashboard

Panorama9 (various data infrastructure monitoring and reporting)
Quest (various tools)
Redhat Cloudforms (openstack and cloud management)
Rrdtools (data collection, logging and display)
Sisense (insight and awareness tools)
Solarwinds Server Application Monitor (SAM) among other tools
Teamquest (various monitoring, management, capacity planning tools)
Turbomomic (software defined data infrastructure insight tools)
Virtual Instruments (various monitoring and insight awareness along with analytics)

In addition to the above, there are tools such as Splunk among others that also provide insight and awareness to help avoid flying blind while managing your data center or data infrastructure.

Where to learn more

Learn more via the following links.

  • Data Infrastructure Primer and Overview (Its Whats Inside The Data Center)
  • E2E Awareness and insight for IT environments
  • Server and Storage I/O Benchmarking and Performance Resources
  • Data Center Infrastructure Management (DCIM) and IRM
  • The Value of Infrastructure Insight – Enabling Informed Decision Making
  • More storage and IO metrics that matter
  • Whats a data infrastructure?
  • Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What this all means

    Without insight and awareness you are flying blind, how can you make informed decisions about your information factory, data infrastructures, data center along with applications. There are different focus areas for various audiences up and down the stack layers in data infrastructures and data centers. Key is having insight and awareness including knowing what are some different tool options.

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    Do you want a side of serverless BS (SLBS) for your data infrastructure fud?

    Did you want a side of SLBS with your software or hardware FUD?

    server storage I/O trends

    Updated 1/17/2018

    Did you want a side of serverless bs (SLBS) with your software or hardware FUD?

    A few years ago a popular industry buzzword term theme included server less and hardware less.

    It turns out, serverless BS (SLBS) and hardware less are still trendy, and while some might view the cloud or software-defined data center (SDDC) virtualization, or IoT folks as the culprits, it is more widespread with plenty of bandwagon riders. SLBS can span from IoT to mobile, VDI and workspace clients (zero or similar), workstations, server, storage, networks. To me what’s ironic is that many purveyors of of SLBS also like to talk about hardware.

    Whats the issue with SLBS?

    Simple, on the one hand, there is no such thing as software that does not need hardware somewhere in the stack. Second, many purveyors of SLBS are solutions that in the past would have been called shrink-wrap. Thirdly IMHO SLBS tends to take away from the real benefit or story of some solutions that can also prompt questions or thoughts of if there are other FUD (fear uncertainty doubt) or MUD (marketing uncertainty doubt). Dare to be different, give some context about what your server less means as opposed to being lumped in with other SLBS followers.

    Data Infrastructures and SDDI, SDDC, SDI
    Data Infrastructures (hardware, software, services, servers, storage, I/O and networks)

    Moving beyond SLBS

    Can we move beyond the SLBS and focus on what the software or solution does, enables, its value proposition vs. how it is dressed, packaged or wrapped?

    IMHO it does not matter who or why SLBS appeared or even that it exists, rather clarifying what it means and what it does not mean, adding some context. For example, you can acquire (buy, rent, subscribe) software without a server (or hardware). Likewise, you can get the software that comes bundled prepackaged with hardware (e.g. tin-wrapped), or via a cloud or other service.

    The software can be shrink wrapped, virtual wrapped or download to run on a bare metal physical machine, cloud, container or VMs. Key is the context of does the software come with, or without hardware. This is an important point in that the software can be serverless (e.g. does not come with, or depend on specific hardware), or, it can be bundled, converged (CI), hyper-converged (HCI) among other package options.

    software wrapping, packaging tin-wrapped software
    Software needs hardware, hardware need software, both get defined and wrapped

    All software requires some hardware somewhere in the stack. Even virtual, container, cloud and yes, software-defined anything requires hardware. What’s different is how much hardware is needed, where it is located, how is it is used, consumed, paid for as well as what the software that it enables.

    Whats the point?

    There are applications, solutions and various software that use fewer servers, less hardware, or runs somewhere else where the hardware including servers are in the stack. Until the next truly industry revolutionary technology occurs, which IMHO will be software that no longer requires any hardware (or marketing-ware) in the stack, and hardware that no longer needs any software in the stack, hardware will continue to need software and vice versa.

    This is where the marketing-ware (not to be confused with valueware) comes into play with a response along the lines of clouds and virtual servers or containers eliminate the need for hardware. That would be correct with some context in that clouds, virtual machines, containers and other software-defined entities still need some hardware somewhere in the stack. Sure there can be less hardware including servers at a given place. Hardware still news software, the software still needs hardware somewhere in the stack.

    data infrastructure stack layers
    Data Infrastructure stack layers (hardware and software get defined with increasing value)

    Show me some software that does not need any hardware anywhere in the stack, and I will either show you something truly industry unique, or, something that may be an addition to the SLBS list.

    Add some context to what you are saying; some examples include that your software:

    • works with your existing hardware (or software)
    • does not need you to buy new or extra hardware
    • can run on the cloud, virtual, container or physical
    • requires fewer servers, less hardware, less cloud, container or virtual resources
    • is the focus being compatible with various data infrastructure resources
    • can be deployed and packaged as shrink-wrap, tin-wrapped or download
    • is packaged and marketed with less fud, or, fudless if you prefer

    In other words, dare to be different, stand out, articulate your value proposition, and add some context instead of following behind the SLBS crowd.

    Where to learn more

  • EMCworld 2015 How Do You Want Your Storage Wrapped?
  • Software Defined Storage Virtual Hard Disk (VHD) Algorithms + Data Structures
  • Data Infrastructure Primer and Overview (Its Whats Inside The Data Center)
  • Whats a data infrastructure?
  • Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What this all means

    Watch out for getting hung up on, or pulled into myths about serverless or hardware less, at least until hardware no longer needs software, and software no longer needs hardware somewhere in the stack. The other point is to look for solutions that enable more effective (not just efficient or utilization) use of hardware (as well as software license) resources. Effective meaning more productive, getting more value and benefit without introducing bottlenecks, errors or rework.

    The focus does not have to be eliminating hardware (or software), rather, how to get more value out of hardware costs (up front and recurring Maintenance) as well as software licenses (and their Maintenance among other fees). This also applies to cloud and service providers, how to get more value and benefit, removing complexity (and costs will follow) as opposed to simply cutting and compromising.

    Next time somebody says serverless or hardware less, ask them if they mean fewer servers, less hardware, making more effective (and efficient) use of those resources, or if they mean no hardware or servers. If the latter, then ask them where their software will run. If they say cloud, virtual or container, no worries, at least then you know where the servers and hardware are located. Oh, and by the way, just for fun, watch for vendors who like to talk serverless or hardware less yet like to talk about hardware.

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    Some popular 2016 storageioblog posts

    Some popular 2016 storageioblog posts

    server storage I/O trends

    Big Files and Lots of Little File Processing and Benchmarking with Vdbench – Need to test, validate, compare, contrast or simply apply workload to file systems, NAS or other file-based access? Want the flexibility and simplicity to software define your benchmark workload to meet various needs? For example, millions of small files or thousands of large 5GB, 10GB, 15GB (or larger) files with various read, write size and access patterns spanning a single directory, or many with various depths? Do you want the flexibility for different platforms including Windows, *NIX, bare metal, container, virtual or cloud without a bulk tool using simple scripts that produce lots of insightful results? Then you will want to check this post out.

    Breaking the VMware ESXi 5.5 ACPI boot loop on Lenovo TD350 – Ever have a VMware host server go into a boot loop and purple screen of death (PSD) then displaying a message about ACPI or similar? After spending time searching and applying many filters to sift through the noise of false positive matches, finally found the simple fix (e.g. a BIOS setting) to break the VMware ESXi vSphere boot loop, or at least on a Lenovo server.

    Cloud and Object Storage

    Cloud conversations: AWS EBS, Glacier and S3 overview (Part I) – This is one of the perennial favorites that while new features have been added with others extended, the post series still provides a good overview, primer or refresher of various Amazon Web Services (AWS) services including how they work. Interesting in learning more about Microsoft and Azure, then check out this, this, this and this.

    Cloud Conversations: AWS EFS Elastic File System (Cloud NAS) – This is a companion to the above AWS as well as other cloud post series that looks at AWS Elastic File System. Note that other cloud service providers have also added NAS file access support, some are intra (e.g. inside AWS cloud), others are inter-cloud (e.g. inside and outside cloud) such as Azure (can work with external Windows Servers using SMB3). Even OpenStack has added NAS file with Manila folders and Ceph with CephFS among others. So when some people tell you that NAS and file access are dead particular for cloud, remind them of the increasing number of services and software stacks that are adding new services to allow their solution to be compatible with existing environments or applications.

    Server Storage I/O performance

    Collecting Transaction Per Minute from SQL Server and HammerDB – If you have used the free tool HammerDB (e.g. Hammora) for driving database workloads, simulations or benchmarks you should recall that the resulting statistics are rather lacking. Sure there is a nice GUI chart that shows current executing transactions per second (TPS) along with some very simple counters in the log. However compared to some other tools such as sysbench, Quest Benchmark Factory and YCSB among others, the Hammer metrics are rather lacking. In this post I show how you can collect some more metrics from SQL Server if you have to use HammerDB. View more server storage I/O performance benchmark and monitoring tools resources here.

    Windows Server 2016

    Gaining Server Storage I/O Insight into Microsoft Windows Server 2016 – Microsoft released into general availability Windows Server 2016 and this post looks at some of the new features along with functionality including Storage Spaces Direct (S2D), Storage Replica (SR) as well as other enhancements. With these new and enhanced features Windows Servers increase their interoperability with Azure, as well as supporting aggregated hyper-converged infrastructure (HCI), disaggregated converged (CI) as well as traditional workloads along with Hyper-V (and containers). One of the other new enhancements in Windows Server 2016 which now uses ReFS (Reliable File System) as its default file system that you can read more about here. RIP Windows SIS (Single Instance Storage), or at least in Server 2016 With Windows Server 2016 Microsoft removed single instance storage replacing with new capabilities that you can read more about in the this post.

    Garbage data in garbage data out

    Garbage data in, garbage information out, big data or big garbage? There is a classic IT expression of garbage data in results in garbage data (or information out) in that your algorithms and data structures (which equals programs e.g. Niklaus Wirth) are only as good as the data they work on. What this means then is that if there is a large amount of big data then there can also be a big garbage in and garbage out problem unless addressed.

    Hard product vs. soft product – Hard product refers to something such as hardware, software or a service resource that is obtained and then joined with other resources in a particular way to create a soft product. Not to be confused with software, the soft product is the result or how resources get defined that give some ability or benefit. Think of a soft product as for how airlines can use the same airplane, serve the same coca cola, have same seats, yet their soft product is the service experience of how those are delivered, as well as how you find and buy or use them. Another way of thinking about it is hard products are the ingredients for a recipe, the recipe defines how those ingredients result in some food dish.

    how many IOPs can an HDD or SSD do

    Part II: How many IOPS can a HDD, HHDD or SSD do with VMware? – This is part of a multi-post series looking at how many IOPs (or bandwidth) various HDD and SSDs can do handling different workloads. Of course, your results will vary with configuration settings, tools among other considerations. However, some of the older rules of thumb (RUT) about RPM and other considerations for HDDs have changed and continue to do so. As an example of how HDDs continue to evolve check out this popular post from the 2016 list Which Enterprise HDDs to use for a Content Server Platform.

    Part II: What I did with Lenovo TS140 in my Server and Storage I/O Review – This is a popular post series of some things I have done with a Lenovo TS140 including defining with various software as well as hardware. This is a great price performer value system that several years ago after testing one Lenovo sent me, I returned that to Lenovo and bought several of them to join my other systems.

    Server and Storage I/O Benchmarking and Performance Resources – This is a collection of various server, storage I/O and networking hardware, software as well as services tools, techniques as well as tips for benchmarking, comparing, simulation, testing, gaining insight across cloud, virtual, container and legacy resources. Server and Storage I/O Benchmark Tools: Microsoft Diskspd (Part I) – This is one of the tools found on the server, storage I/O benchmarking and performance resources page. Diskspd is a tool developed by Microsoft as an alternative to using Iometer, vdbench, fio.exe, SQLIO among many others, plus, it is on github.

    server storage I/O nvme and ssd

    The NVM (Non Volatile Memory) and NVMe Place – Interesting and adoption in nand flash, nvram, 3D XPoint among other SSD and Non-volatile Memory (NVM) continues. Another popular post that you can find at thenvmeplace.com is this NVMe overview and primer – Part I. There is a growing interest, awareness and deployment adoption around NVM Express (NVMe) the new protocol for accessing NVMs and SSDs. Some of the common conversations and questions I encounter is confusion between NVM and NVMe, too which the answer is one (the former) are the media or devices, the other is the access method alternative to using AHCI/SATA or SCSI (e.g. SAS, iSCSI, FCP, SRP) among others.

    VMware VVOLs and storage I/O fundamentals (Part 1) – VMware Virtual Volumes (VVOL) continue to gain adoption and this post is part of an overview and primer. If you want to go deeper into VVOL as well as see some adoption insights check out Eric Sieberts post here over at vsphere-land.com

    Welcome to the Object Storage Center page – This is a micro site that has a primer and overview of cloud as well as object storage along with an expanding list of links to various resources, tips, technologies, tools, trends and industry activity.

    Where To Learn More

    www.storageio.com particular if you have not been there for awhile to check out the new streamlined look and navigation to various content including Server StorageIO update newsletters (free subscription) among other resources.

    Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What this all means and wrapping up

    Some of the popular posts for 2016 are perennial favorites and based on experience will probably appear on the 2017 list. However there are also several new posts that appeared in 2016 that I suspect will also appear on the 2017 version of the above list, along with new content from 2017.

    Thank you to all of you who frequent StorageIOblog.com as well as StorageIO.com along with our various micro sites including server storage I/O performance and benchmarking resources, thenvmeplace.com, thessdplace.com, cloud and objectstoragecenter.com, data protection diaries among others.

    Also thank you for viewing various partner venues and syndicates with extra ones appearing throughout 2017. Watch for more content in the coming weeks, months and throughout 2017 on software defined data infrastructures (SDDI) along with server, storage I/O, networking, hardware, software, cloud, container, data protection and related topics, trends, technologies, tools and tips.

    Again, thank you

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    What Does Converged Infrastructure CI Hyperconverged HCI Mean to Storage I/O?

    What Does CI and HCI Mean to Storage I/O?

    server storage I/O trends

    Updated 1/17/2018

    Converged Infrastructure (CI), Hyperconverged Infrastructure (HCI) along with Cluster or Cloud In Box (CIB) are popular trend topics that have gained both industry and customer adoption as part of data infrastructures. Data Infrastructures exists to support business, cloud and information technology (IT) among other applications that transform data into information or services. The fundamental role of legacy and software defined data infrastructures (SDDI) is to provide a platform environment for applications and data that is resilient, flexible, scalable, agile, efficient as well as cost-effective.

    Software Defined Data Infrastructure overview

    Business, IT Information, Data and other Infrastructures

    Put another way, data infrastructures exist to protect, preserve, process, move, secure and serve data as well as their applications for information services delivery. Technologies that make up data infrastructures include hardware, software, cloud or managed services, servers, storage, I/O and networking along with people, processes, policies along with various tools spanning legacy, software-defined virtual, containers and cloud.

    As part of data infrastructures, CI, CIB and HCI enable simplified deployment of resources (servers, storage, I/O networking, hardware, software) across different environments. What do these various approaches (CI, HCI, CiB) mean for a hyperconverged (and converged) storage environment? What are the key concerns and considerations related specifically to storage? Most importantly, how do you know that you’re asking the right questions in order to get to the right answers?

    Join me on March 15 at 10:00 AM PT for a live (free) webinar organized by the Storage Network Industry Association (SNIA) Ethernet Storage Forum (ESF). In this webinar (What Does Hyperconverged Mean to Storage) I will be joined by SNIA ESF chair John Kim of Mellanox to discuss moving beyond the hype to prepare, plan and make decisions for deploying CI, CiB and HCI.

    Some of the server, storage I/O and related topics we will be discussing during the webcast include:

  • What are the storage considerations for CI, CIB and HCI
  • Fast applications and fast servers need fast server storage I/O
  • Fast NVM storage including NVMe, flash and SSD
  • Networking and server storage I/O considerations
  • How to avoid aggravation-causing aggregation (bottlenecks)
  • Aggregated vs. desegregated vs. hybrid converged
  • Planning, comparing, benchmarking and decision-making
  • Data protection, management and east-west I/O traffic
  • Application and server I/O north-south traffic
  • Where To Learn More

  • SNIA ESF organized webinar on BrightTalk March 15, 2017
  • StorageIO.com (events, news, tips, resources) and StorageIOblog.com
  • Cloud and Virtual Data Storage Networking (CRC)
  • Software-Defined Data Infrastructure Essentials (CRC)
  • Data Infrastructure Primer and Overview (Its Whats Inside The Data Center)
  • Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What This All Means

    For many environments some form of converged, desegregated, aggregated or hyper-converged solution or approach will part of their data infrastructures. Join the SNIA ESF folks and me on March 15, 2017 (bring your questions) to discuss CI and HCI storage I/O topics, trends, technologies and themes.

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    If NVMe is the answer, what are the questions?

    If NVMe is the answer, what are the questions?

    If NVMe is the answer, then what are the various questions that should be asked?

    Some common questions that NVMe is the answer to include what is the difference between NVM and NVMe?

    Is NVMe only for servers, does NVMe require fabrics and what benefit is NVMe beyond more IOPs.

    Lets take a look at some of these common NVMe conversations and other questions.

    Main Features and Benefits of NVMe

    Some of the main feature and benefits of NVMe among others include:

      • Lower latency due to improve drivers and increased queues (and queue sizes)
      • Lower CPU used to handle larger number of I/Os (more CPU available for useful work)
      • Higher I/O activity rates (IOPS) to boost productivity unlock value of fast flash and NVM
      • Bandwidth improvements leveraging various fast PCIe interface and available lanes
      • Dual-pathing of devices like what is available with dual-path SAS devices
      • Unlock the value of more cores per processor socket and software threads (productivity)
      • Various packaging options, deployment scenarios and configuration options
      • Appears as a standard storage device on most operating systems
      • Plug-play with in-box drivers on many popular operating systems and hypervisors

    NVM and Media memory matters

    Whats the differences between NVM and NVMe? Non-Volatile Memory (NVM) which as its name implies is persistent electronic memory medium where data is stored. Today you commonly know about NVMs as NAND flash Solid State Devices (SSD), along with NVRAM among others emerging storage class memories (SCM).

    Emerging SCM such as 3D XPoint among other mediums (or media if you prefer) have the premises of boosting both read and write performance beyond traditional NAND flash, closer to DRAM, while having durability also closer to DRAM. For now let’s set the media and mediums aside and get back to how they or will be accessed as well as used.

    server storage I/O NVMe fundamentals

    Server and Storage I/O Media access matters

    NVM Express (e.g. NVMe) is a standard industry protocol for accessing NVM media (SSD and flash devices, storage system, appliances). If NVMe is the answer, then depending on your point of view, NVMe can be (or is) a replacement (today or in the future) for AHCI/SATA, Serial Attached SCSI (SAS). What this means is that NVMe can coexist or replace other block SCSI protocol implementations (e.g. Fibre Channel FCP aka FCP, iSCSI, SRP) as well as NBD (among others).

    Similar to the SCSI command set that is implemented on different networks (e.g. iSCSI (IP), FCP (Fibre Channel), SRP (InfiniBand), SAS) NVMe as a protocol is now implemented using PCIe with form factors of add-in cards (AiC), M.2 (e.g. gum sticks aka next-gen form factor or NGFF) as well as U.2 aka 8639 drive form factors. There are also the emerging NVMe over Fabrics variants including FC-NVMe (e.g. NVMe protocol over Fibre Channel) which is an alternative to SCSI_FCP (e.g. SCSI on Fibre Channel). An example of a PCIe AiC that I have include the Intel 750 400GB NVMe (among others). You should be able to find the Intel among other NVMe devices from your prefered vendor as well as different venues including Amazon.com.

    NVM, flash and NVMe SSD
    Left PCIe AiC x4 NVMe SSD, lower center M.2 NGFF, right SAS and SATA SSD

    The following image shows an NVMe U.2 (e.g. 8639) drive form factor device that from a distance looks like a SAS device and connector. However looking closer some extra pins or connectors that present a PCIe Gen 3 x4 (4 PCIe lanes) connection from the server or enclosure backplane to the devices. These U.2 devices plug into 8639 slots (right) that look like a SAS slot that can also accommodate SATA. Remember, SATA can plug into SAS, however not the other way around.

    NVMe U.2 8639 driveNVMe 8639 slot
    Left NVMe U.2 drive showing PCIe x4 connectors, right, NVMe U.2 8639 connector

    What NVMe U.2 means is that the 8639 slots can be used for 12Gbps SAS, 6Gbps SATA or x4 PCIe-based NVMe. Those devices in turn attach to their respective controllers (or adapters) and device driver software protocol stack. Several servers have U.2 or 8639 drive slots either in 2.5” or 1.8” form factors, sometimes these are also called or known as “blue” drives (or slots). The color coding simply helps to keep track of what slots can be used for different things.

    Navigating your various NVMe options

    If NVMe is the answer, then some device and component options are as follows.

    NVMe device components and options include:

      • Enclosures and connector port slots
      • Adapters and controllers
      • U.2, PCIe AIC and M.2 devices
      • Shared storage system or appliances
      • PCIe and NVMe switches

    If NVMe is the answer, what to use when, where and why?

    Why use an U.2 or 8639 slot when you could use PCIe AiC? Simple, your server or storage system may be PCIe slot constrained, yet have more available U.2 slots. There are U.2 drives from various vendors including Intel and Micro, as well as servers from Dell, Intel and Lenovo among many others.

    Why and when would you use an NVMe M.2 device? As a local read/write cache, or perhaps a boot and system device on servers or appliances that have M.2 slots. Many servers and smaller workstations including Intel NUC support M.2. Likewise, there are M.2 devices from many different vendors including Micron, Samsung among others.

    Where and why would you use NVMe PCIe AiC? Whenever you can and if you have enough PCIe slots of the proper form factor, mechanical and electrical (e.g. x1, x4, x8, x16) to support a particular card.

    Can you mix and match different types of NVMe devices on the same server or appliance? As long as the physical server and its software (BIOS/UEFI, operating system, hypervisors, drivers) support it yes. Most server and appliance vendors support PCIe NVMe AiCs, however, pay attention to if they are x4, x8 both mechanical as well as electrical. Also, verify operating system and hypervisor device driver support. PCIe NVMe AiCs are available from Dell, Intel, Micron and many other vendors.

    Networking with your Server and NVMe Storage

    Keep in mind that context is important when discussing NVMe as there are devices for attaching as the back-end to servers, storage systems or appliances, as well as for front-end attachment (e.g. for attaching storage systems to servers). NVMe devices can also be internal to a server or storage system and appliance, or, accessible over a network. Think of NVMe as an upper-level command set protocol like SCSI that gets implemented on different networks (e.g. iSCSI, FCP, SRP).

    How can NVMe use PCIe as a transport to use devices that are outside of a server? Different vendors have PCIe adapter cards that support longer distances (few meters) to attach to devices. For example, Dell EMC DSSD has a special dual port (two x4 ports) that are PCIe x8 cards for attachment to the DSSD shared SSD devices.

    Note that there are also PCIe switches similar to SAS and InfiniBand among other switches. However just because these are switches, does not mean they are your regular off the shelf network type switch that your networking folks will know what to do with (or want to manage).

    The following example shows a shared storage system or appliance being accessed by servers using traditional block, NAS file or object protocols. In this example, the storage system or appliance has implemented NVMe devices (PCIe AiC, M.2, U.2) as part of their back-end storage. The back-end storage might be all NVMe, or a mix of NVMe, SAS or SATA SSD and perhaps some high-capacity HDD.

    NVMe and server storage access
    Servers accessing shared storage with NVMe back-end devices

    NVMe and server storage access via PCIe
    NVMe PCIe attached (via front-end) storage with various back-end devices

    In addition to shared PCIe-attached storage such as Dell EMC DSSD similar to what is shown above, there are also other NVMe options. For example, there are industry initiatives to support the NVMe protocol to use shared storage over fabric networks. There are different fabric networks, they range from RDMA over Converged Ethernet (RoCE) based as well as Fibre Channel NVME (e.g. FC-NVME) among others.

    An option that on the surface may not seem like a natural fit or leverage NVMe to its fullest is simply adding NVMe devices as back-end media to existing arrays and appliances. For example, adding NVMe devices as the back-end to iSCSI, SAS, FC, FCoE or other block-based, NAS file or object systems.

    NVMe and server storage access via shared PCIe
    NVMe over a fabric network (via front-end) with various back-end devices

    A common argument against using legacy storage access of shared NVMe is along the lines of why would you want to put a slow network or controller in front of a fast NVM device? You might not want to do that, or your vendor may tell you many reasons why you don’t want to do it particularly if they do not support it. On the other hand, just like other fast NVM SSD storage on shared systems, it may not be all about 100% full performance. Rather, for some environments, it might be about maximizing connectivity over many interfaces to faster NVM devices for several servers.

    NVMe and server storage I/O performance

    Is NVMe all about boosting the number of IOPS? NVMe can increase the number of IOPS, as well as support more bandwidth. However, it also reduces response time latency as would be expected with an SSD or NVM type of solution. The following image shows an example of not surprisingly an NVMe PCIe AiC x4 SSD outperforming (more IOPs, lower response time) compared to a 6Gb SATA SSD (apples to oranges). Also keep in mind that best benchmark or workload tool is your own application as well as your performance mileage will vary.

    NVMe using less CPU per IOP
    SATA SSD vs. NVMe PCIe AiC SSD IOPS, Latency and CPU per IOP

    The above image shows the lower amount of CPU per IOP given the newer, more streamlined driver and I/O software protocol of NVMe. With NVMe there is less overhead due to the new design, more queues and ability to unlock value not only in SSD also in servers with more sockets, cores and threads.

    What this means is that NVMe and SSD can boost performance for activity (TPS, IOPs, gets, puts, reads, writes). NVMe can also lower response time latency while also enabling higher throughput bandwidth. In other words, you get more work out of your servers CPU (and memory). Granted SSDs have been used for decades to boost server performance and in many cases, delay an upgrade to a newer faster system by getting more work out of them (e.g. SSD marketing 202).

    NVMe maximizing your software license investments

    What may not be so obvious (e.g. SSD marketing 404) is that by getting more work activity done in a given amount of time, you can also stretch your software licenses further. What this means is that you can get more out of your IBM, Microsoft, Oracle, SAP, VMware and other software licenses by increasing their effective productivity. You might already be using virtualization to increase server hardware efficiency and utilization to cut costs. Why not go further and boost productivity to increase your software license (as well as servers) effectiveness by using NVMe and SSDs?

    Note that fast applications need fast software, servers, drivers, I/O protocols and devices.

    Also just because you have NVMe present or PCIe does not mean full performance, similar to how some vendors put SSDs behind their slow controllers and saw, well slow performance. On the other hand vendors who had or have fast controllers (software, firmware, hardware) that were HDD or are even SSD performance constrained can see a performance boost.

    Additional NVMe and related tips

    If you have a Windows server and have not overridden, check your power plan to make sure it is not improperly set to balanced instead of high performance. For example using PowerShell issue the following command:

    PowerCfg -SetActive “381b4222-f694-41f0-9685-ff5bb260df2e”

    Another Windows related tip if you have not done so is enable task manager disk stats by issuing from a command line “diskperf –y”. Then display task manager and performance and see drive performance.

    Need to benchmark, validate, compare or test an NVMe, SSD (or even HDD) device or system, there are various tools and workloads for different scenarios. Likewise those various tools can be configured for different activity to reflect your needs (and application workloads). For example, Microsoft Diskspd, fio.exe, iometer and vdbench sample scripts are shown here (along with results) as a starting point for comparison or validation testing.

    Does M.2. mean you have NVMe? That depends as some systems implement M.2 with SATA, while others support NVMe, read the fine print or ask for clarification.

    Do all NVMe using PCIe run at the same speed? Not necessarily as some might be PCIe x1 or x4 or x8. Likewise some NVMe PCIe cards might be x8 (mechanical and electrical) yet split out into a pair of x4 ports. Also keep in mind that similar to a dual port HDD, NVMe U.2 drives can have two paths to a server, storage system controller or adapter, however both might not be active at the same time. You might also have a fast NVMe device attached to a slow server or storage system or adapter.

    Who to watch and keep an eye on in the NVMe ecosystem? Besides those mentioned above, others to keep an eye on include Broadcom, E8, Enmotus Fuzedrive (micro-tiering software), Excelero, Magnotics, Mellanox, Microsemi (e.g. PMC Sierra), Microsoft (Windows Server 2016 S2D + ReFS + Storage Tiering), NVM Express trade group, Seagate, VMware (Virtual NVMe driver part of vSphere ESXi in addition to previous driver support) and WD/Sandisk among many others.

    Where To Learn More

    Additional related content can be found at:

    Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What This All Means

    NVMe is in your future, that was the answer, however there are the when, where, how, with what among other questions to be addressed. One of the great things IMHO about NVMe is that you can have it your way, where and when you need it, as a replacement or companion to what you have. Granted that will vary based on your preferred vendors as well as what they support today or in the future.

    If NVMe is the answer, Ask your vendor when they will support NVMe as a back-end for their storage systems, as well as a front-end. Also decide when will your servers (hardware, operating systems hypervisors) support NVMe and in what variation. Learn more why NVMe is the answer and related topics at www.thenvmeplace.com

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    January 2017 Server StorageIO Update Newsletter

    Volume 17, Issue I

    Hello and welcome to first 2017 issue of the Server StorageIO update newsletter.

    Now that we are past the holidays, year-end crunch, post new years activity including NFL football playoffs, its time to get back on track for the new year and new things.

    There is a lot going on, in and around data infrastructure server, storage, and I/O networking connectivity from a hardware, software, and services perceptive. From consumer to small/medium business (SMB), enterprise to web-scale and cloud-managed service providers, physical to virtual, spanning structured database (aka “little data”) to unstructured big data and very big fast data, a lot is happening today.

    Watch for more coverage involving data infrastructures as well as other related topics in future newsletters, at StorageIOblog.com as well as in different venues and events.

    In This Issue

  • Commentary in the news
  • Tips and Articles
  • StorageIOblog posts
  • Events and Webinars
  • Industry Activity Trends
  • Resources and Links
  • Connect and Converse With Us
  • About Us
  • Enjoy this edition of the Server StorageIO update newsletter.

    Cheers GS

    Industry Activity Trends

    Recent Industry News and Activity includes:

    Broadcom buying Brocade for $5.5B USD (if you missed last fall)
    Cavium QLogic expands 10GbE connectivity for server and storage I/O
    HPE announces enhancements to flash-ready HPE StoreVirtual 3200
    HPE buying scaleable HCI vendor Simplivity for $650 million USD (Cash)
    LinBit and SUSE providing open source high availability (HA) solutions
    StorageCraft (data protection software) acquires Exablox (object storage)
    Teradata has launched their big data database on Azure

     

    StorageIOblog Posts

    Recent and popular Server StorageIOblog posts include:

    In case you missed it:

  • PCIe Server Storage I/O Network Fundamentals
  • If NVMe is the answer, what are the questions?
  • Fixing the Microsoft Windows 10 1709 post upgrade restart loop
  • Data Infrastructure server storage I/O network Recommended Reading
  • Introducing Windows Subsystem for Linux WSL Overview
  • IT transformation Serverless Life Beyond DevOps with New York Times CTO Nick Rockwell Podcast
  • HPE Announces AMD Powered Gen 10 ProLiant DL385 For Software Defined Workloads
  • AWS Announces New S3 Cloud Storage Security Encryption Features
  • NVM Non Volatile Memory Express NVMe Place
  • Data Protection Fundamental Topics Tools Techniques Technologies Tips
  • View other recent as well as past StorageIOblog posts here

     

    StorageIO Commentary in the news

    Recent Server StorageIO industry trends perspectives commentary in the news.

    Via InfoStor: 10 Top Data Storage Applications
    Via InfoStor: Cloud Storage Concerns, Considerations and Trends
    Via InfoStor: 10 Top Data Storage Applications
    Via InfoStor: SSD Trends, Tips and Topics
    Via HPE: Decision guide: Public cloud versus on-prem storage
    Via InfoStor: Six Ways to Boost Data Storage Performance

    View more Server, Storage and I/O trends and perspectives comments here

     

    StorageIO Tips and Articles

    Recent and past Server StorageIO articles appearing in different venues include:

    Via FutureReadyOEM:  When to implement ultra-dense storage
    Via InfoStor: Cloud Storage Concerns, Considerations and Trends
    Via InfoStor: SSD Trends, Tips and Topics

    Check out these resources techniques, trends and tools. View more tips and articles here

     

    Events and Activities

    Recent and upcoming event activities.

    April 3-7, 2017 – Seminars – Dutch workshop seminar series – Nijkerk Netherlands

    March 15, 2017 – Webinar – SNIA/BrightTalkHyperConverged (HCI) and Storage – 10AM PT

    January 26 2017 – Seminar – Presenting at Wipro SDx Summit London UK

    January 11, 2017 Webinar – Redmond Magazine
    Dell Software – Presenting – Tailor Your Backup Data Repositories to Fit Your Needs

    December 13 VMware webinar – vSAN, HCIBench, vSAN Observer and healthcheck

    December 7, 2016 11AM PT – BrightTalk Webinar: Hyper-Converged Infrastructure

    See more webinars and activities on the Server StorageIO Events page here.

     

    Server StorageIO Industry Resources and Links

    Useful links and pages:
    Microsoft TechNet – Various Microsoft related from Azure to Docker to Windows
    storageio.com/links – Various industry links (over 1,000 with more to be added soon)
    objectstoragecenter.com – Cloud and object storage topics, tips and news items
    OpenStack.org – Various OpenStack related items
    storageio.com/protect – Various data protection items and topics
    thenvmeplace.com – Focus on NVMe trends and technologies
    thessdplace.com – NVM and Solid State Disk topics, tips and techniques
    storageio.com/performance – Various server, storage and I/O benchmark and tools
    VMware Technical Network – Various VMware related items

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    Data Infrastructure Primer Overview (Its Whats Inside The Data Center)

    Data Infrastructure Primer Overview

    Data Infrastructure Primer Overview

    Updated 1/17/2018

    Data Infrastructure Primer Overview looks at the resources that combine to support business, cloud and information technology (IT) among other applications that transform data into information or services. The fundamental role of data infrastructures is to provide a platform environment for applications and data that is resilient, flexible, scalable, agile, efficient as well as cost-effective. Put another way, data infrastructures exist to protect, preserve, process, move, secure and serve data as well as their applications for information services delivery. Technologies that make up data infrastructures include hardware, software, cloud or managed services, servers, storage, I/O and networking along with people, processes, policies along with various tools spanning legacy, software-defined virtual, containers and cloud.

    Various Types and Layers of Infrastructures

    Depending on your role or focus, you may have a different view than somebody else of what is infrastructure, or what an infrastructure is. Generally speaking, people tend to refer to infrastructure as those things that support what they are doing at work, at home, or in other aspects of their lives. For example, the roads and bridges that carry you over rivers or valleys when traveling in a vehicle are referred to as infrastructure.

    Similarly, the system of pipes, valves, meters, lifts, and pumps that bring fresh water to you, and the sewer system that takes away waste water, are called infrastructure. The telecommunications network. This includes both wired and wireless, such as cell phone networks, along with electrical generating and transmission networks are considered infrastructure. Even the airplanes, trains, boats, and buses that transport us locally or globally are considered part of the transportation infrastructure. Anything that is below what you do, or that supports what you do is considered infrastructure.

    Software Defined Data Infrastructure overview

    Figure 1 Business, IT Information, Data and other Infrastructures

    This is also the situation with IT systems and services where, depending on where you sit or use various services, anything below what you do may be considered infrastructure. However, that also causes a context issue in that infrastructure can mean different things. For example in figure 1, the user, customer, client, or consumer who is accessing some service or application may view IT in general as infrastructure, or perhaps as business infrastructure.

    Those who develop, service, and support the business infrastructure and its users or clients may view anything below them as infrastructure, from desktop to database, servers to storage, network to security, data protection to physical facilities. Moving down a layer (lower altitude) in figure 1 is the information infrastructure which, depending on your view, may also include servers, storage, and I/O hardware and software.

    To help make a point, let’s think of the information infrastructure as the collection of databases, key-value stores, repositories, and applications along with development tools that support the business infrastructure. This is where you may find developers who maintain and create real business applications for the business infrastructure. Those in the information infrastructure usually refer to what’s below them as infrastructure. Meanwhile, those lower in the stack shown in figure 1 may refer to what’s above them as the customer, user, or application, even if the real user is up another layer or two.

    Whats inside a data infrastructure
    Context matters in the discussion of infrastructure. So for our of server storage I/O fundamentals, the data infrastructures support the databases and applications developers as well as things above, while existing above the physical facilities infrastructure, leveraging power, cooling, and communication network infrastructures below.

    SDDI and Data Infrastructure building blocks

    Figure 2 Data Infrastructure fundamental building blocks (hardware, software, services).

    Figure 2 shows the fundamental pillars or building blocks for a data infrastructure, including servers for computer processing, I/O networks for connectivity, and storage for storing data. These resources including both hardware and software as well as services and tools. The size of the environment, organization, or application needs will determine how large or small the data infrastructure is or can be.

    For example, at one extreme you can have a single high-performance laptop with a hypervisor running OpenStack; along with various operating systems along with their applications leveraging flash SSD and high-performance wired or wireless networks powering a home lab or test environment. On the other hand, you can have a scenario with tens of thousands (or more) servers, networking devices, and hundreds of petabytes (PBs) of storage (or more).

    In figure 2 the primary data infrastructure components or pillar (server, storage, and I/O) hardware and software resources are packaged and defined to meet various needs. Software-defined storage management includes configuring the server, storage, and I/O hardware and software as well as services for use, implementing data protection and security, provisioning, diagnostics, troubleshooting, performance analysis, and other activities. Server storage and I/O hardware and software can be individual components, prepackaged as bundles or application suites and converged, among other options.

    Figure 3 shows a deeper look into the data infrastructure shown at a high level in figure 2. The lower left of figure 2 shows the common-to-all-environments hardware, software, people, processes, and practices that include tradecraft (experiences, skills, techniques) and “valueware”. Valueware is how you define the hardware and software along with any customization to create a resulting service that adds value to what you are doing or supporting. Also shown in figure 3 are common application and services attributes including performance, availability, capacity, and economics (PACE), which vary with different applications or usage scenarios.

    Data Infrastructure components

    Figure 3 Data Infrastructure server storage I/O hardware and software components.

    Applications are what transform data into information. Figure 4 shows how applications, which are software defined by people and software, consist of algorithms, policies, procedures, and rules that are put into some code to tell the server processor (CPU) what to do.

    SDDI and SDDC server storage I/O

    Figure 4 How data infrastructure resources transform data into information.

    Application programs include data structures (not to be confused with infrastructures) that define what data looks like and how to organize and access it using the “rules of the road” (the algorithms). The program algorithms along with data structures are stored in memory, together with some of the data being worked on (i.e., the active working set). Additional data is stored in some form of extended memory storage devices such as Non-Volatile Memory (NVM) solid-state devices (SSD), hard disk drives (HDD), or tape, among others, either locally or remotely. Also shown in figure 4 are various devices that do input/output (I/O) with the applications and server, including mobile devices as well as other application servers.

    Bringing IT All Together (for now)

    Software Defined Data Infrastructure overview

    Figure 5 Data Infrastructure  fundamentals “big picture”

    A fundamental theme is that servers process data using various applications programs to create information; I/O networks provide connectivity to access servers and storage; storage is where data gets stored, protected, preserved, and served from; and all of this needs to be managed. There are also many technologies involved, including hardware, software, and services as well as various techniques that make up a server, storage, and I/O enabled data infrastructure.

    Server storage I/O and data infrastructure fundamental focus areas include:

    • Organizations: Markets and industry focus, organizational size
    • Applications: What’s using, creating, and resulting in server storage I/O demands
    • Technologies: Tools and hard products (hardware, software, services, packaging)
    • Trade craft: Techniques, skills, best practices, how managed, decision making
    • Management: Configuration, monitoring, reporting, troubleshooting, performance, availability, data protection and security, access, and capacity planning

    Where To Learn More

    View additional Data Infrastructure and related topics via the following links.

    Additional learning experiences along with common questions (and answers), as well as tips can be found in Software Defined Data Infrastructure Essentials book.

    Software Defined Data Infrastructure Essentials Book SDDC

    What This All Means

    Whether you realize it or not, you may already be using, rely upon, affiliated with, support or otherwise involved with data infrastructures. Granted what you or others generically refer to as infrastructure or the data center may, in fact, be the data infrastructure. Watch for more discussions and content about as well as related technologies, tools, trends, techniques and tradecraft in future posts as well as other venues, some of which involve legacy, others software-defined, cloud, virtual, container and hybrid.

    Ok, nuff said, for now.

    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2017 (vSAN and vCloud). Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio. Courteous comments are welcome for consideration. First published on https://storageioblog.com any reproduction in whole, in part, with changes to content, without source attribution under title or without permission is forbidden.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO. All Rights Reserved. StorageIO is a registered Trade Mark (TM) of Server StorageIO.

    SDx Summit London UK (Planning and Enabling Your Journey to Software Defined)

    Planning and Enabling Your Journey to Software Defined)

    server storage I/O trends

    Will 2017 be there year of all software-defined X (e.g. SDx) where X can be everything from data centers (SDDC), data infrastructures (SDDI), infrastructure (SDI), storage (SDS), network (SDN) or marketing (SDM) among others? What about IoT, IoD, ByoD, ByoL (bring your own license), MaaS (metal as a service), clouds, containers, object storage, OpenStack, Mesos, Docker, Kubernetes, NVMe, flash SSD, SCM (Storage Class Memory) among other buzzword bingo terms, technologies and trends, will 2017 be there year for those among others?

    What is safe to say is that the above buzzword items, topics, trends, technologies, tools and techniques are in your future, what varies is when, where, how, why, with what and whom to assist you on your journey.

    server storage I/O events

    On January 26 2017 join me and others at the Savoy hotel in London UK for the SDx summit organized by Wipro.

    My presentation titled Planning and Enabling Your Journey to SDx will have a theme of Transiting from Hype and Marketing Hope to Deployment and Management. In other words, moving beyond SDBS and SDM to how to prepare, plan and what you can do today including hybrid deployments. Some of the topics, themes, trends, technologies, tools and tips in my discussion will include among others:

    • Software Defined Management and Data Protection
    • How to pack and prepare for your Software Defined Journey
    • Be prepared, plan for the unexpected, manage your journey
    • Learn the local language, expand your trade craft (skills)
    • Moving and migrating (brownfield) vs. start from scratch (greenfield)
    • ByoD, DiY, IoD, IoT, Cloud and Container conversations
    • What you can do today to prepare for your upcoming journey

    Where To Learn More

    Learn more and register here for the London UK SDx summit.

    What This All Means

    Regardless of if 2017 will be the year of SDx or any of the other industry popular buzz term trends, technologies and techniques, it is time to start planning as well as preparing. This means identifying questions, concerns and learning about the new tools and technologies that can be used in new ways, while also leveraging old things in new ways to enable a resilient, scalable, flexible as well as cost-effective data infrastructure. For those of you in the London UK area, learn more about the SDx summit organized by Wipro here and hope to see you there.

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2023 Server StorageIO(R) and UnlimitedIO All Rights Reserved

    SSD, flash, Non-volatile memory (NVM) storage Trends, Tips & Topics

    SSD, flash, Non-volatile memory (NVM) storage Trends, Tips & Topics

    Updated 2/2/2018

    server storage I/O trends

    Will 2017 be there year of solid state device (SSD), all flash, or all Non-volatile memory (NVM) based storage data centers and data infrastructures?

    Recently I did a piece over at InfoStor looking at SSD trends, tips and related topics. SSDs of some type, shape and form are in your future, if they are not already. In my InfoStor piece, I look at some non-volatile memory (NVM) and SSD trends, technologies, tools and tips that you can leverage today to help prepare for tomorrow. This also includes NVM Express (NVMe) based components and solutions.

    By way of background, SSD can refer to solid state drive or solid state device (e.g. more generic). The latter is what I am using in this post. NVM refers to different types of persistent memories, including NAND flash and its variants most commonly used today in SSDs. Other NVM mediums include NVRAM along with storage class memories (SCMs) such as 3D XPoint and phase change memory (PCM) among others. Let’s focus on NAND flash as that is what is primarily available and shipping for production enterprise environments today.

    Continue reading about SSD, flash, NVM and related trends, topics and tips over at InfoStor by clicking here.

    Where To Learn More

    Additional related content can be found at:

    What This All Means

    Will 2017 finally be the year of all flash, all SSD and all NVM including emerging storage class memories (SCM)? Or as we have seen over the past decade increasing adoption as well as deployment in most environments, some of which have gone all SSD or NVM. In the meantime it is safe to say that NVMe, NVM, SSD, flash and other related technologies are in your future in some shape or form as well as quantity. Check out my piece over at InfoStor SSD trends, tips and related topics.

    What say you, are you going all flash, SSD or NVM in 2017, if not, what are your concerns or constraints and plans?

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and <a “https://storageioblog.com/book1”>Resilient Storage Networks (Elsevier) and twitter @storageio. Watch for the spring 2017 release of his new book “Software-Defined Data Infrastructure Essentials” (CRC Press).

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2023 Server StorageIO(R) and UnlimitedIO All Rights Reserved

    Cloud and Object storage are in your future, what are some questions?

    Cloud and Object storage are in your future, what are some questions?

    server storage I/O trends

    IMHO there is no doubt that cloud and object storage are in your future, what are some questions?

    Granted, what type of cloud and object storage or service along with for work or entertainment are some questions.

    Likewise, what are your cloud and object storage concerns (assuming you already have heard the benefits)?

    Some other questions include when, where for different applications workload needs, as well as how and with what among others.

    Keep in mind that there are many aspects to cloud storage and they are not all object, likewise, there are many facets to object storage.

    Recently I did a piece over at InfoStor titled Cloud Storage Concerns, Considerations and Trends that looks at the above among other items including:

    • Is cloud storage cheaper than traditional storage?
    • How do you access cloud object storage from legacy block and file applications?
    • How do you implement on-site cloud storage?
    • Is enterprise file sync and share (EFSS) safe and secure?
    • Does cloud storage need to be backed up and protected?
    • What geographic location requirements or regulations apply to you?

    When it comes to cloud computing and, in particular, cloud storage, context matters. Conversations are necessary to discuss concerns, as well as discuss various considerations, options and alternatives. People often ask me questions about the best cloud storage to use, concerns about privacy, security, performance and cost.

    Some of the most common cloud conversations topics involve context :

    • Public, private or hybrid cloud; turnkey subscription service or do it yourself (DIY)?
    • Storage, compute server, networking, applications or development tools?
    • Storage application such as file sync and share like Dropbox?
    • Storage resources such as table, queues, objects, file or block?
    • Storage for applications in the cloud, on-site or hybrid?

    Continue reading Cloud Storage Concerns, Considerations and Trends over at InfoStor.

    Where To Learn More

    Additional related content can be found at:

    What This All Means

    As I mentioned above, cloud and object storage are in your future, granted your future may not rely on just cloud or object storage. Take a few minutes to check out some of the conversation topics, tips and trends in my piece over at InfoStor Cloud Storage Concerns, Considerations and Trends along with more material at www.objectstoragecenter.com.

    Btw, what are your questions, comments, concerns, claims or caveats as part of cloud and object storage conversations?

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2023 Server StorageIO(R) and UnlimitedIO All Rights Reserved

    Overview Review of Microsoft ReFS (Reliable File System) and resource links

    server storage I/O trends

    This is an overview review of Microsoft ReFS (Resilient File System) along with some resource links. ReFS is part of some Windows operating system platforms including Server 2016.

    Some context here is that review can mean an in-depth deep dive product or technology review, while another meaning is to simply to refresh what you may already know about ReFS. For this post, the focus is on the latter, that is a bit of overview that also functions as a refresh review of what you may already know. However click here to see how ReFS and NTFS compare.

    Click here to read more about Windows Server 2016, Storage Spaces Direct (S2D), Storage Replica (SR) and other related topics (or click on the image below).

    Microsoft Windows Server 2016
    Windows Server 2016 Welcome Screen – Source Server StorageIOlab.com

    What Is Microsoft ReFS and Why It Matters

    Microsoft ReFS (Resilient File System) is part of Windows Servers 2012, 2012 R2, 2016 as well as Windows 8.1 and 10 platforms as an alternative to NTFS file system. ReFS is designed not only for resiliency, also for scaling volumes beyond 256 TBytes (NTFS) to 4.7 Zettabytes (ZB). Note files size for both NTFS and ReFS is 18 Exabytes (EB). Click here to view various ReFS and NTFS data services, feature functionality along with limits. Part of being resilient means that ReFS is able to provide more data integrity protection to guard against logical data corruption.

    Note while ReFS is the future for Windows-based platforms, NTFS is not going away anytime soon, after all, FAT (File Allocation Table) volumes are still supported after how many decades of being around? ReFS has been around for several years having existed in earlier WIndows operating systems as an option, however with Server 2016, its status is promoted to a more prominent role with more features, data services and functionality.

    ReFS data services, features and functionality include:

    • Resiliency – Automatic detection and online repair of data corruption issues
    • Online repair – Isolate faults to localized area of data corruption for repair enabling volumes to stay online
    • Storage Spaces integration – Leverage mirror or parity spaces for automatic detect and repair via alternate data copies. Note that with Windows Server 2016 Microsoft also has introduced Storage Spaces Direct (S2D).
    • Data salvage – Should a volume become corrupt with no alternate copy (you should still have a backup), ReFS removes corrupt data from name space on a live volume. This capability enables surviving data to stay accessible while isolating the fault to the corrupted or damaged data.
    • Integrity streams – Checksums for metadata and optionally file data that enable ReFS to detect corruptions in a reliable way.
    • Proactive error correction – Besides validating data before reads and writes, ReFS also has a background scrubber data integrity check of volumes. This capability enables ReFS to proactively detect latent or silent data corruption so that corrective repair of damaged data can occur.
    • Real-time tiering – When combined with S2D maximizes performance and space capacity across performance and capacity tiers using NVMe, flash SSD and HDDs devices. Writes occur to the performance tier, with large chunks de-staged to capacity tier. Read acceleration enabled via cache. Can support all flash (e.g. performance NVMe and capacity TLC or other flash SSD) as well as hybrid mix of HDD and SSD configurations.
    • Block cloning for dynamic workloads including server virtualization such as accelerating checkpoint merge operations.
    • Sparse VDL (Valid Data Length) improves virtual machine (VM) operations reducing time needed to create fixed size VHDs from 10s of minutes to seconds.
    • Variable storage allocation cluster size of 4KB (for most environments) and 64KB (for environments with larger sequential file processing needs).

    ReFS Deployment Options

    Microsoft ReFS deployment options include:

    • Basic disk (HDD, and SSD) – Leverage applications or other resiliency and protection solutions.
    • SAS drive enclosures with storage spaces provides more data protection including availability as well as integrity and accessibility. Leverages classic storage spaces mirroring and parity protection for increased resiliency and availability.
    • Storage Spaces Direct (S2D) – Increased scalability, real-time tiering and cache server storage I/O performance (effectiveness) and capacity (efficiency) optimization. For increased resiliency adds block clone and sparse Valid Data Length (VDL) to boost VHDX file performance operations (create, merge, expand). For resiliency, built-in checksums, online repair as well as leverage alternate data copies combined with S2D to detect as well as correct both metadata as well as primary data corruption issues. Optimized for large-scale and virtualized application workloads.

    Where To Learn More

    For those of you not as familiar with Microsoft Windows Server and related topics, or that simply need a refresh, here are several handy links as well as resources.

    • Benchmarking Microsoft Hyper-V server, VMware ESXi and Xen Hypervisors (Via cisjournal PDF)
    • BrightTalk Webinar – Software-Defined Data Centers (SDDC) are in your Future (if not already here)
    • BrightTalk Weibniar – Software-Defined Data Infrastructures Enabling Software-Defined Data Centers
    • Choosing drives and resiliency types in Storage Spaces Direct to meet performance and capacity requirements (Via TechNet)
    • Data Protection for Modern Microsoft Environments (Redmond Magazine Webinar)
    • Deep Dive: Volumes in Storage Spaces Direct (Via TechNet Blogs)
    • Discover Storage Spaces Direct, the ultimate software-defined storage for Hyper-V (YouTube Video)
    • DUPLICATE_EXTENTS_DATA structure (Via MSDN)
    • Block cloning on ReFS (Via TechNet)
    • DISKSPD now on GitHub, and the mysterious VMFLEET released (Via TechNet)
    • Erasure Coding in Windows azure storage (Via Microsoft)
    • Fault domain awareness in Windows Server 2016 (Via TechNet)
    • Fault tolerance and storage efficiency in Storage Spaces Direct (Via TechNet)
    • FSCTL_DUPLICATE_EXTENTS_TO_FILE control code (Via MSDN)
    • Gaining Server Storage I/O Insight into Microsoft Windows Server 2016 (StorageIOblog)
    • General information about SSD at www.thessdplace.com and NVMe at www.thenvmeplace.com
    • Get the Windows Server 2016 evaluation bits here
    • Happy 20th Birthday Windows Server, ready for Server 2016?
    • How to run nested Hyper-V and Windows Server 2016 (Via Altaro and via MSDN)
    • How to run Nested Windows Server and Hyper-V on VMware vSphere ESXi (Via Nokitel)
    • Hyper-converged solution using Storage Spaces Direct in Windows Server 2016 (Via TechNet)
    • Hyper-V large-scale VM performance for in-memory transaction processing (Via Technet)
    • Introducing Windows Server 2016 (Free ebook from Microsoft Press)
    • Large scale VM performance with Hyper-V and in-memory transaction processing (Via Technet)
    • Microsoft Resilient File System (ReFS) overview (Via TechNet)
    • Microsoft S2D Software Storage Bus (Via TechNet)
    • Microsoft Storage Replica (SR) (Via TechNet)
    • Microsoft Windows S2D Software Defined Storage (Via TechNet)
    • NVMe, SSD and HDD storage configurations in Storage Spaces Direct TP5 (Via TechNet)
    • Microsoft Azure Stack overview and related material via Microsoft
    • ReFS integrity streams (Via TechNet)
    • ReFS and NTFS feature, data services and functionality comparisons (Via TechNet)
    • ReFS and NTFS limits (speeds and feeds via TechNet)
    • Resilient File System aka ReFS (Via TechNet)
    • Server 2016 Impact on VDI User Experience (Via LoginVSI)
    • Server and Storage I/O Benchmark Tools: Microsoft Diskspd (Part I
    • Setting up S2D with a 4 node configuration (Via StarWind blog)
    • Setting up testing Windows Server 2016 and S2D using virtual machines (Via MSDN blogs)
    • SQL Server workload (benchmark) Order Processing Benchmark using In-Memory OLTP (Via Github)
    • Storage IOPS update with Storage Spaces Direct (Via TechNet)
    • Storage throughput with Storage Spaces Direct (S2D TP5 (Via TechNet)
    • Storage Spaces Direct hardware requirements (Via TechNet)
    • Storage Spaces Direct in Windows Server 2016 (Via TechNet with Video)
    • Storage Spaces Direct – Lab Environment Setup (Via Argon Systems)
    • Understanding Software Defined Storage with S2D in Windows Server 2016 (Via TechNet)
    • Understanding the cache in Storage Spaces Direct (Via TechNet)
    • Various Windows Server and S2D lab scripts (Via Github)
    • Volume resiliency and efficiency in Storage Spaces Direct (Via TechNet Blogs)
    • What’s New in Windows Server 2016 (Via TechNet)
    • Windows Server 2016 Getting Started (Via TechNet)
    • Windows Server 2016 and Active Directory (Redmond Magazine Webinar)
    • Server StorageIO resources including added links, tools, reports, events and more

    What This All Means

    Now is as good of time as any to refresh (or enhance) your knowledge of ReFS and its current capabilities particular if you are involved with Microsoft environments. On the other hand, if you are not involved with Microsoft, take a few moments to update your insight and awareness of ReFS, storage spaces, S2D and other related capabilities including Windows Servers converged (desegregated) and hyper-converged (aggregated) options to avoid working off of or with stale data.

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author of Software Defined Data Infrastructure Essentials (CRC Press), as well as Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press), Resilient Storage Networks (Elsevier) and twitter @storageio.

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2023 Server StorageIO(R) and UnlimitedIO All Rights Reserved

    September and October 2016 Server StorageIO Update Newsletter

    Volume 16, Issue IX

    Hello and welcome to this September and October 2016 Server StorageIO update newsletter.

    In This Issue

  • Commentary in the news
  • Tips and Articles
  • StorageIOblog posts
  • Events and Webinars
  • Industry Activity Trends
  • Resources and Links
  • Connect and Converse With Us
  • About Us
  • Enjoy this edition of the Server StorageIO update newsletter.

    Cheers GS

    Industry Activity Trends

    Recent Industry Activates and Trends

    EMC is now Dell EMC – What this means is that EMC is no longer a publicly traded company instead now being privately held under the Dell Technologies umbrella. In case you did not know or had forgotten, one of the principal owners of Dell Technologies is Michael Dell aka the founder of Dell Computers which itself went private a few years ago. Read more in this Server StoageIOblog update post.

    While Michael Dell and Dell Technologies continues to expand by acquiring companies (granted also shedding some assets to support that growth), HP Enterprise (HPE) is taking a different approach. Similar to Dell, HPE has been offloading some of its divisions and assets since its split into two separate companies about a year ago.

    More recently HPE has announced it is selling off some of its software assets to which follows other deals where HPE created a new partnership with CSC to offload or park some of its services assets. What’s not clear is HPE CEO Meg Whitman leveraging the trend that some Private Equity (PE) firms are interested in acquiring under performing companies or assets to prepare them as part of a pivot to profit scenario, or something else?

    • HPE selling off business units including software group here, here, here and here
    • HPE looking to boost its HPC and super compute business with $275B acquisition of SGI
    • Announced new shared storage for SMB and mid-size environments including for sub $10K price points. These include HPE StoreVirtual 3200 and HPE MSA 2042.
    • HPE and Dropbox partnership
    • Various other HPE news and updates

    Hyper-Converged Infrastructure (HCI) startup vendor Nutanix finally IPO (NTNX) after a not so consolidated IPO cycle. Prior to the IPO NTNX acquired other startup Pernix (VMware cache software solution) and calmio to beef up their product portfolio. Congratulations to NTNX and best wishes, hopefully the public markets will provide risk vs. reward, on the other hand, now being public, the spotlight will be on them.

    Nutanix Stock via Yahoo 10/31/16
    NTNX Stock Trading via Yahoo Finance 10/31/16 (Click to see current status)


    Microsoft has extended its software defined storage (SDS) along with software defined data center (SDDC) as well as software defined networking (SDN) capabilities by formerly announcing Windows Server 2016. A month or so ago Microsoft announced the 20th birthday or anniversary of Windows Server as well as having previously released Tech Previews (TP).
    See what’s new in Server 2016 here. For those not aware, With Windows Server 2016, you can configure it to be CI, HCI, legacy or various hybrid ways to meet your needs, along with your choice of hardware from your preferred vendor or solution provider. Read more about Microsoft Windows Server 2016 and related topics in this Server StorageIOblog post.

    Needless to say there is a lot of other activity in the works including VMware enhancements with vSphere 6.5 as well as VMware vSphere (and related tools) being announced as hosted on bare metal (BM) dedicated private servers (DPS) via AWS among other updates.

     

    StorageIOblog Posts

    Recent and popular Server StorageIOblog posts include:

    View other recent as well as past StorageIOblog posts here

     

    StorageIO Commentary in the news

    Recent Server StorageIO industry trends perspectives commentary in the news.

    Via InfoStor Top Ten Data Storage Performance Tips: Improving Data Storage
    Via ChannelProNetwork Your Time Will Come, All-Flash Storage
    Via FutureReadyOEM When to implement ultra-dense CI or HCI storage
    Via EnterpriseStorageForum Top 10 Enterprise SSD Market Trends
    Via EnterpriseStorageForum Storage Hyperconvergence: When Does It Make Sense?
    SearchCloudStorage: EMC VxRack Neutrino Nodes launched for OpenStack cloud storage
    EnterpriseStorageForum: Looking Beyond the Hype at Hyperconvergence in Storage
    CDW Digital: Transitioning Data Centers To Hybrid Environment
    SearchDataCenter: EMC, VCE, CI and Hyperconverged vs. Hyper-small
    InfoStor: Docker and Containerization Storage Buying Guide
    NetworkComputing: Dell-EMC: The Storage Ramifications
    EnterpriseTech: VMware Targets Synergies in Dell-EMC Deal 
    HPCwire: Dell to Buy EMC Focus on Large Enterprises and High-End Computing
    EnterpriseStorageForum: Storage Futures: Do We Really Need to Store Everything?

    View more Server, Storage and I/O hardware as well as software trends comments here

     

    StorageIO Tips and Articles

    Recent and past Server StorageIO articles appearing in different venues include:

    Via Iron Mountain  Is Your Data Infrastructure Prepared for Storm Season?
    Via Iron Mountain  Preventing Unexpected Disasters: IT and Data Infrastructure
    Via FutureReadyOEM  When to implement ultra-dense storage
    Via Micron Blog (Guest Post)  Whats next for NVMe and your Data Center
    Redmond Magazine  Data Protection Trends – Evolving Data Protection and Resiliency
    Virtual Blocks (VMware Blogs)  EVO:RAIL Part III – When And Where To Use It?
    Virtual Blocks (VMware Blogs)  EVO:RAIL Part II – Why And When To Use It?
    Virtual Blocks (VMware Blogs)  EVO:RAIL Part I – What Is It And Why Does It Matter?

    Check out these resources techniques, trends as well as tools. View more tips and articles here

     

    Events and Activities

    Recent and upcoming event activities.

    December 7, 2016 11AM PT – BrightTalk Webinar: Hyper-Converged Infrastructure

    November 29-30, 2016 – Nijkerk Netherlands Workshop Seminar (Presenting)
    Organized by Brouwer Storage Consultancy

    Converged and Other Server Storage Decision Making

    November 28, 2016 – Nijkerk Netherlands Workshop Seminar (Presenting)
    Organized by Brouwer Storage Consultancy
    – Industry Trends Update

    November 23, 2016 10AM PT – BrightTalk Webinar: BCDR and Cloud Backup
    Software Defined Data Infrastructures (SDDI) and Data Protection

    November 23, 2016 9AM PT – BrightTalk Webinar: Cloud Storage
    Hybrid and Software Defined Data Infrastructures (SDDI)

    November 22, 2016 10AM PT – BrightTalk Webinar: Cloud Infrastructure
    Hybrid and Software Defined Data Infrastructures (SDDI)

    November 15, 2016 11AM PT – Redmond Magazine and SolarWinds
    Presenting – The O.A.R. of Virtualization Scaling

    November 3, 2016 11AM PT – Redmond Magazine and Dell Software
    Presenting – Backup, Data Protection and Security Management

    October 27, 2016 10AM PT – Virtual Instruments Webinar
    The Value of Infrastructure Insight

    October 20, 2016 9AM PT – BrightTalk Webinar: Next-Gen Data Centers
    Software Defined Data Infrastructures (SDDI) – Servers, Storage and Virtualization

    September 20, 2016 8AM PT – BrightTalk Webinar
    Software Defined Data Infrastructures (SDDI)
    Enabling Software Defined Data Centers

    September 13, 2016 11AM PT – Redmond Magazine and Dell Software
    Windows Server 2016 and Active Directory
    What’s New and How to Plan for Migration

    See more webinars and other activities on the Server StorageIO Events page here.

     

    Server StorageIO Industry Resources and Links

    Useful links and pages:
    Microsoft TechNet – Various Microsoft related from Azure to Docker to Windows
    storageio.com/links – Various industry links (over 1,000 with more to be added soon)
    objectstoragecenter.com – Cloud and object storage topics, tips and news items
    OpenStack.org – Various OpenStack related items
    storageio.com/protect – Various data protection items and topics
    thenvmeplace.com – Focus on NVMe trends and technologies
    thessdplace.com – NVM and Solid State Disk topics, tips and techniques
    storageio.com/performance – Various server, storage and I/O performance and benchmarking
    VMware Technical Network – Various VMware related items

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier) and twitter @storageio

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2023 Server StorageIO(R) and UnlimitedIO All Rights Reserved

    Updated Software Defined Data Infrastructure Webinars and Fall 2016 events

    Software Defined Data Infrastructure Webinars and Fall 2016 events

    server storage I/O trends

    Here is the updated Server StorageIO fall 2016 webinar and event activities covering software defined data center, data infrastructure, virtual, cloud, containers, converged, hyper-converged server, storage, I/O network, performance and data protection among other topics.

    December 7, 2016 – Webinar 11AM PT – BrightTalk
    Hyper-Converged Infrastructure Decision Making

    Hyper-Converged Infrastructure, HCI and CI Decision Making

    Are Converged Infrastructures (CI), Hyper-Converged Infrastructures (HCI), Cluster in Box or Cloud in Box (CiB) solutions for you? The answer is it depends on what your needs, requirements, application among other criteria are. In addition are you focused on a particular technology solution or architecture approach, or, looking for something that adapts to your needs? Join us in this discussion exploring your options for different scenarios as we look beyond they hype including to next wave of hyper-scale converged along with applicable decision-making criteria. Topics include:

    – Data Infrastructures exist to support applications and their underlying resource needs
    – What are your application and environment needs along with other objectives
    – Explore various approaches for hyper-small and hyper-large environments
    – What are you converging, hardware, hypervisors, management or something else?
    – Does HCI mean hyper-vendor-lock-in, if so, is that a bad thing?
    – When, where, why and how to use different scenarios

    November 29-30, 2016 (New) – Converged & Hyper-Converged Decision Making
    Is Converged Infrastructure Right For You?
    Workshop Seminar – Nijkerk The Netherlands

    Converged and server storage I/O data infrastructure trends
    Agenda and topics to be covered include:

    • When should decide to evaluate CI/HCI vs. traditional approach
    • What are decision and evaluation criteria for apples to apples vs. Apples to pears
    • What are the costs, benefits, and caveats of the different approaches
    • How different applications such as VDI or VSI or database have different needs
    • What are the network, storage, software license and training cost implications
    • Different comparison criteria for smaller environments remote office vs. Larger enterprise
    • How will you protect and secure a CI, HCI environment (HA, BC, BR, DR, Backup)
    • What is the risk and benefit of startups, companies with limited portfolios vs. Big vendors
    • Do it yourself (DiY) vs. Turnkey software vs. Bundled tin wrapped software solution
    • We will also look at associated trends including software-defined, NVM/SSD, NVMe, VMware, Microsoft, KVM, Citrix/Xen, Docker, OpenStack among others.

    Organized by:
    Brouwer Storage Consultancy

    November 28, 2016 (New) – Server Storage I/O Fundamental Trends V2.1116
    Whats New, Whats the buzz, what you need to know about and whos doing what
    Workshop Seminar – Nijkerk The Netherlands

    Converged and server storage I/O data infrastructure trends
    Agenda and topics that will be covered include:

    • Who’s doing what, who are the new emerging vendors, solutions and technologies to watch
    • Non-Volatile Memory (NVM), flash solid state device (SSD), Storage Class Memory (SCM)
    • Networking with your servers and storage including NVMe, NVMeoF and RoCE
    • Cloud, Object and Bulk storage for data protection, archiving, near-line, scale-out
    • Data protection and software defined storage management (backup, BC, BR, DR, archive)
    • Microsoft Windows Server 2016, Nano, S2D and Hyper-V
    • VMware, OpenStack, Ceph, Docker and Containers, CI and HCI
    • EMC is gone, now there is Dell EMC and what that means
    • Various vendors and solutions from legacy to new and emerging
    • Recommendations, usage or deployment scenarios and tips
    • Some examples of who’s doing what includes AWS, Brocade, Cisco, Dell EMC, Enmotus, Futjistu, Google, HDS, HP and Huawei, IBM, Intel, Lenovo, Mellanox, Micron, Microsoft, NetApp, Nutanix, Oracle, Pure, Quantum, Qumulo, Reduxio, Rubrik, Samsung, SANdisk, Seagate, Simplivity and Tintri, Veeam, Veritas, VMware and WD among others.

    Organized by:
    Brouwer Storage Consultancy

    November 23, 2016 – Webinar 10AM PT BrightTalk
    BCDR and Cloud Backup Software Defined Data Infrastructures (SDDI) and Data Protection

    BC DR Cloud Backup and Data Protection

    The answer is BCDR and Cloud Backup, however what was the question? Besides how to protect preserve and secure your data, applications along with data Infrastructures against various threat risk issues, what are some other common questions? For example how to modernize, rethink, re-architect, use new and old things in new ways, these and other topics, techniques, trends, tools have a common theme of BCDR and Cloud Backup. Join us in this discussion exploring your options for protecting data, applications and your data Infrastructures spanning legacy, software-defined virtual and cloud environments. Topics include:

    – Data Infrastructures exist to support applications and their underlying resource needs
    – Various cloud storage options to meet different application PACE needs
    – Do clouds need to be backed-up or protected?
    – How to leverage clouds for various data protection objectives
    – When, where, why and how to use different scenarios

    November 23, 2016 – Webinar 9AM PT – BrightTalk
    Cloud Storage – Hybrid and Software Defined Data Infrastructures (SDDI)

    Cloud Storage Decision Making

    You have been told, or determined that you need (or want) to use cloud storage, ok, now what? What type of cloud storage do you need or want, or do you simply want cloud storage? However, what are your options as well as application requirements including Performance, Availability, Capacity and Economics (PACE) along with access or interfaces? Where are your applications and where will they be located? What are your objectives for using cloud storage or is it simply you have heard or told its cheaper. Join us in this discussion exploring your options, considerations for cloud storage decision-making. Topics include:

    – Data Infrastructures exist to support applications and their underlying resource needs
    – Various cloud storage options to meet different application PACE needs
    – Storage for primary, secondary, performance, availability, capacity, backup, archiving
    – Public, private and hybrid cloud storage options from block, file, object to application service
    – When, where, why and how to use cloud storage for different scenarios

    November 22, 2016 – Webinar 10AM PT – BrightTalk
    Cloud Infrastructure Hybrid and Software Defined Data Infrastructures (SDDI)

    Cloud Infrastructure and Hybrid Software Defined

    At the core of cloud (public, private, hybrid) next generation data centers are software defined data infrastructures that exist to protect, preserve and serve applications, data along with their resulting information services. Software defined data infrastructure core components include hardware, software servers and storage configured (defined) to provide various services enabling application Performance Availability Capacity and Economics (PACE). Just as there are different types of environments, applications along with workloads various options, technologies as well as techniques exist for cloud services (and underlying data infrastructures). Join us in this session to discuss trends, technologies, tools, techniques and services options for cloud infrastructures. Topics include:

    – Data Infrastructures exist to support applications and their underlying resource needs
    – Software Defined Infrastructures (SDDI) are what enable Software Defined Data Centers and clouds
    – Various types of clouds along with cloud services that determine how resources get defined
    – When, where, why and how to use cloud Infrastructures along with associated resources

    November 15, 2016 (New) – 11AM PT Webinar – Redmond Magazine and Solarwinds
    The O.A.R. of Virtualization Scaling
    A journey of optimization, automation, and reporting

    Your journey to a flexible, scalable and secure IT universe begins now. Join Microsoft MVP and VMware vSAN and vExpert Greg Schulz of Server StorageIO along with VMware vExpert, Cisco Champion and Head Geek of Virtualization and Cloud Practice Kong Yang of SolarWinds for an interactive discussion empowering you to become the master of your software defined and virtual data center. Topics will include:

    • Trust your instruments and automation, however, verify they are working properl
    • Insight into how your environment, as well as automation tools, are working
    • Leverage automation to handle recurring tasks so you can focus on more productive activities
    • Capture, retain and transfer knowledge and tradecraft experiences into automation policies
    • Automated system management is only as good as the policies and data they rely upon
    • Optimize via automation that relies on reporting for insight, awareness and analytics 

    November 3, 2016 (New) – Webinar 11AM PT – Redmond Magazine and
    Dell Software
    Tailor Your Backup Data Repositories to
    Fit Your Security and Management Needs

    Does data protection storage have you working overtime to take care of it? Do you have the flexibility to protect, preserve, secure and serve different workgroups or customers in a shared environment? Is your environment looking to expand with new applications and remote offices, yet your data protection is slowing you down? 

    In this webinar we will look at current and emerging trends along with issues including how different threat risk challenges impact your evolving environment, as well as opportunities to address them. It’s time to deploy technology that works for you and your environment instead of you working for the solution. 

    Attend and learn about:

    • Data protection trends, issues, regulatory compliance, challenges and opportunities
    • How to utilize purpose built appliances to protect and defend your systems, applications and data from various threat risks
    • Importance of timely insight and situational awareness into your data protection infrastructure
    • Protecting centralized and distributed remote office branch offices (ROBO) workgroups
    • What you can do today to optimize your environment

    October 27, 2016 (New) – Webinar 10AM PT – Virtual Instruments
    The Value of Infrastructure Insight

    This webinar looks at the value of data center infrastructure insight both as a technology as well as a business productivity enabler. Besides productivity, having insight into how data infrastructure resources (servers, storage, networks, system software) are used, enables informed analysis, troubleshooting, planning, forecasting as well as cost-effective decision-making. In other words, data center infrastructure insight, based on infrastructure performance analytics, enables you to avoid flying blind, having situational awareness for proactive Information Technology (IT) management. Your return on innovation is increased, and leveraging insight awareness along with metrics that matter drives return on investment (ROI) along with enhanced service delivery.

    October 20, 2016 – Webinar 9AM PT – BrightTalk
    Next-Gen Data Centers Software Defined Data Infrastructures (SDDI) including Servers, Storage and Virtualization

    Cloud Storage Decision Making

    At the core of next generation data centers are software defined data infrastructures that enable, protect, preserve and serve applications, data along with their resulting information services. Software defined data infrastructure core components include hardware, software servers and storage configured (defined) to provide various services enabling application Performance Availability Capacity and Economics (PACE). Just as there are different types of environments, applications along with workloads various options, technologies as well as techniques exist for virtual servers and storage. Join us in this session to discuss trends, technologies, tools, techniques and services around storage and virtualization for today, tomorrow, and in the years to come. Topics include:

    – Data Infrastructures exist to support applications and their underlying resource needs
    – Software Defined Infrastructures (SDDI) are what enable Software Defined Data Centers
    – Server and Storage Virtualization better together, with and without CI/HCI
    – Many different facets (types) of Server virtualization and virtual storage
    – When, where, why and how to use storage virtualization and virtual storage

    September 20, 2016 – Webinar 8AM PT – BrightTalk
    Software Defined Data Infrastructures (SDDI) Enabling Software Defined Data Centers – Part of Software-Defined Storage summit

    Cloud Storage Decision Making

    Data Infrastructures exist to support applications and their underlying resource needs. Software-Defined Infrastructures (SDI) are what enable Software-Defined Data Centers, and at the heart of a SDI is storage that is software-defined. This spans cloud, virtual and physical storage and is at the focal point of today. Join us in this session to discuss trends, technologies, tools, techniques and services around SDI and SDDC- today, tomorrow, and in the years to come.

    September 13, 2016 – Webinar 11AM PT – Redmond Magazine and
    Dell Software
    Windows Server 2016 and Active Directory
    Whats New and How to Plan for Migration

    Windows Server 2016 is expected to GA this fall and is a modernized version of the Microsoft operating system that includes new capabilities such as Active Directory (AD) enhancements. AD is critical to organizational operations providing control and secure access to data, networks, servers, storage and more from physical, virtual and cloud (public and hybrid). But over time, organizations along with their associated IT infrastructures have evolved due to mergers, acquisitions, restructuring and general growth. As a result, yesterday’s AD deployments may look like they did in the past while using new technology (e.g. in old ways). Now is the time to start planning for how you will optimize your AD environment using new tools and technologies such as those in Windows Server 2016 and AD in new ways. Optimizing AD means having a new design, performing cleanup and restructuring prior to migration vs. simply moving what you have. Join us for this interactive webinar to begin planning your journey to Windows Server 2016 and a new optimized AD deployment that is flexible, scalable and elastic, and enables resilient infrastructures. You will learn:

    • What’s new in Windows Server 2016 and how it impacts your AD
    • Why an optimized AD is critical for IT environments moving forward
    • How to gain insight into your current AD environment
    • AD restructuring planning considerations

    September 8, 2016 – Webinar 11AM PT (Watch on Demand) – Redmond Magazine, Acronis and Unitrends
    Data Protection for Modern Microsoft Environments

    Your organization’s business depends on modern Microsoft® environments — Microsoft Azure and new versions of Windows Server 2016, Microsoft Hyper-V with RCT, and business applications — and you need a data protection solution that keeps pace with Microsoft technologies. If you lose mission-critical data, it can cost you $100,000 or more for a single hour of downtime. Join our webinar and learn how different data protection solutions can protect your Microsoft environment, whether you store data on company premises, at remote locations, in private and public clouds, and on mobile devices.

    Where To Learn More

    What This All Means

    Its fall back to school and learning time, join me on these and other upcoming event activities.

    Ok, nuff said, for now…

    Cheers
    Gs

    Greg Schulz – Microsoft MVP Cloud and Data Center Management, vSAN and VMware vExpert. Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier) and twitter @storageio

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