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VMware vSAN 6.6 hyper-converged (HCI) software defined data infrastructure

server storage I/O trends

VMware vSAN 6.6 hyper-converged (HCI) software defined data infrastructure

In case you missed it, VMware announced vSAN v6.6 hyper-converged infrastructure (HCI) software defined data infrastructure solution. This is the first of a five-part series about VMware vSAN V6.6. Part II (just the speeds feeds please) is located here, part III (reducing cost and complexity) located here, part IV (scaling ROBO and data centers today) found here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

VMware vSAN 6.6
Image via VMware

For those who are not aware, vSAN is a VMware virtual Storage Area Network (e.g. vSAN) that is software-defined, part of being a software-defined data infrastructure (SDDI) and software-defined data center (SDDC). Besides being software-defined vSAN is HCI combining compute (server), I/O networking, storage (space and I/O) along with hypervisors, management, and other tools.

Software-defined data infrastructure

Excuse Me, What is vSAN and who is if for

Some might find it odd having to explain what vSAN is, on the other hand, not everybody is dialed into the VMware world ecosystem, so let’s give them some help, for everybody else, and feel free to jump ahead.

For those not familiar, VMware vSAN is an HCI software-defined storage solution that converges compute (hypervisors and server) with storage space capacity and I/O performance along with networking. Being HCI means that with vSAN as you scale compute, storage space capacity and I/O performance also increases in an aggregated fashion. Likewise, increase storage space capacity and server I/O performance you also get more compute capabilities (along with memory).

For VMware-centric environments looking to go CI or HCI, vSAN offers compelling value proposition leveraging known VMware tools and staff skills (knowledge, experience, tradecraft). Another benefit of vSAN is the ability to select your hardware platform from different vendors, a trend that other CI/HCI vendors have started to offer as well.

CI and HCI data infrastructure

Keep in mind that fast applications need a fast server, I/O and storage, as well as server storage I/O needs CPU along with memory to generate I/O operations (IOPs) or move data. What this all means is that HCI solutions such as VMware vSAN combine or converge the server compute, hypervisors, storage file system, storage devices, I/O and networking along with other functionality into an easy to deploy (and management) turnkey solution.

Learn more about CI and HCI along with who some other vendors are as well as considerations at www.storageio.com/converge. Also, visit VMware sites to find out more about vSphere ESXi hypervisors, vSAN, NSX (Software Defined Networking), vCenter, vRealize along with other tools for enabling SDDC and SDDI.

Give Me the Quick Elevator Pitch Summary

VMware has enhanced vSAN with version 6.6 (V6.6) enabling new functionality, supporting new hardware platforms along with partners, while reducing costs, improving scalability and resiliency for SDDC and SDDI environments. This includes from small medium business (SMB) to mid-market to small medium enterprise (SME) as well as workgroup, departmental along with Remote Office Branch Office (ROBO).

Being a HCI solution, management functions of the server, storage, I/O, networking, hypervisor, hardware, and software are converged to improve management productivity. Also, vSAN integrated with VMware vSphere among other tools enable modern, robust data infrastructure that serves, protect, preserve, secure and stores data along with their associated applications.

Where to Learn More

The following are additional resources to learn more about vSAN and related technologies.

What this all means

Overall a good set of enhancements as vSAN continues its evolution looking back just a few years ago, to where it is today and will be in the future. If you have not looked at vSAN recently, take some time beyond reading this piece to learn some more.

Continue reading more about VMware vSAN 6.6 in part II (just the speeds feeds please) is located here, part III (reducing cost and complexity) located here, part IV (scaling ROBO and data centers today) located here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

Ok, nuff said (for now…).

Cheers
Gs

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

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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VMware vSAN V6.6 Part II (just the speeds feeds features please)

server storage I/O trends

VMware vSAN v6.6 Part II (just the speeds feeds features please)

In case you missed it, VMware announced vSAN v6.6 hyper-converged infrastructure (HCI) software defined data infrastructure solution. This is the second of a five-part series about VMware vSAN V6.6. View Part I here, part III (reducing cost and complexity) located here, part IV (scaling ROBO and data centers today) found here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

VMware vSAN 6.6
Image via VMware

For those who are not aware, vSAN is a VMware virtual Storage Area Network (e.g. vSAN) that is software-defined, part of being a software-defined data infrastructure (SDDI) and software-defined data center (SDDC). Besides being software-defined vSAN is HCI combining compute (server), I/O networking, storage (space and I/O) along with hypervisors, management, and other tools.

Just the Speeds and Feeds Please

For those who just want to see the list of what’s new with vSAN V6.6, here you go:

  • Native encryption for data-at-rest
  • Compliance certifications
  • Resilient management independent of vCenter
  • Degraded Disk Handling v2.0 (DDHv2)
  • Smart repairs and enhanced rebalancing
  • Intelligent rebuilds using partial repairs
  • Certified file service & data protection solutions
  • Stretched clusters with local failure protection
  • Site affinity for stretched clusters
  • 1-click witness change for Stretched Cluster
  • vSAN Management Pack for vRealize
  • Enhanced vSAN SDK and PowerCLI
  • Simple networking with Unicast
  • vSAN Cloud Analytics with real-time support notification and recommendations
  • vSAN ConfigAssist with 1-click hardware lifecycle management
  • Extended vSAN Health Services
  • vSAN Easy Install with 1-click fixes
  • Up to 50% greater IOPS for all-flash with optimized checksum and dedupe
  • Support for new next-gen workloads
  • vSAN for Photon in Photon Platform 1.1
  • Day 0 support for latest flash technologies
  • Expanded caching tier choice
  • Docker Volume Driver 1.1

What’s New and Value Proposition of vSAN 6.6

Let’s take a closer look beyond the bullet list of what’s new with vSAN 6.6, as well as perspectives of those features to address different needs. The VMware vSAN proposition is to evolve and enable modernizing data infrastructures with HCI powered by vSphere along with vSAN.

Three main themes or characteristics (and benefits) of vSAN 6.6 include addressing (or enabling):

  • Reducing risk while scaling
  • Reducing cost and complexity
  • Scaling for today and tomorrow

VMware vSAN 6.6 summary
Image via VMware

Reducing risk while scaling

Reducing (or removing) risk while evolving your data infrastructure with HCI including flexibility of choosing among five support hardware vendors along with native security. This includes native security, availability and resiliency enhancements (including intelligent rebuilds) without sacrificing storage efficiency (capacity) or effectiveness (performance productivity), management and choice.

VMware vSAN DaRE
Image via VMware

Dat level Data at Rest Encryption (DaRE) of all vSAN dat objects that are enabled at a cluster level. The new functionality supports hybrid along with all flash SSD as well as stretched clusters. The VMware vSAN DaRE implementation is an alternative to using self-encrypting drives (SEDs) reducing cost, complexity and management activity. All vSAN features including data footprint reduction (DFR) features such as compression and deduplication are supported. For security, vSAN DaRE integrations with compliance key management technologies including those from SafeNet, Hytrust, Thales and Vormetric among others.

VMware vSAN management
Image via VMware

ESXi HTML 5 based host client, along with CLI via ESXCLI for administering vSAN clusters as an alternative in case your vCenter server(s) are offline. Management capabilities include monitoring of critical health and status details along with configuration changes.

VMware vSAN health management
Image via VMware

Health monitoring enhancements include handling of degraded vSAN devices with intelligence proactively detecting impending device failures. As part of the functionality, if a replica of the failing (or possible soon to fail) device exists, vSAN can take action to maintain data availability.

Where to Learn More

The following are additional resources to find out more about vSAN and related technologies.

What this all means

With each new release, vSAN is increasing its feature, functionality, resiliency and extensiveness associated with traditional storage and non-CI or HCI solutions. Continue reading more about VMware vSAN 6.6 in Part I here, part III (reducing cost and complexity) located here, part IV (scaling ROBO and data centers today) found here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

Ok, nuff said (for now…).

Cheers
Gs

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

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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VMware vSAN V6.6 Part III (reducing costs complexity)

server storage I/O trends

VMware vSAN V6.6 Part III (Reducing costs complexity)

In case you missed it, VMware announced vSAN v6.6 hyper-converged infrastructure (HCI) software defined data infrastructure solution. This is the third of a five-part series about VMware vSAN V6.6. View Part I here, Part II (just the speeds feeds please) is located here, part IV (scaling ROBO and data centers today) found here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

VMware vSAN 6.6
Image via VMware

For those who are not aware, vSAN is a VMware virtual Storage Area Network (e.g. vSAN) that is software-defined, part of being a software-defined data infrastructure (SDDI) and software-defined data center (SDDC). Besides being software-defined vSAN is HCI combining compute (server), I/O networking, storage (space and I/O) along with hypervisors, management, and other tools.

Reducing cost and complexity

Reducing your total cost of ownership (TCO) including lower capital expenditures (CapEx) and operating (OPEX). VMware is claiming CapEx and OpEx reduced TCO of 50%. Keep in mind that solutions such as vSAN also can help drive return on investment (ROI) as well as return on innovation (the other ROI) via improved productivity, effectiveness, as well as efficiencies (savings). Another aspect of addressing TCO and ROI includes flexibility leveraging stretched clusters to address HA, BR, BC and DR Availability needs cost effectively. These enhancements include efficiency (and effectiveness e.g. productivity) at scale, proactive cloud analytics, and intelligent operations.

VMware vSAN stretch cluster
Image via VMware

Low cost (or cost-effective) Local, Remote Resiliency and Data Protection with Stretched Clusters across sites. Upon a site failure, vSAN maintains availability is leveraging surviving site redundancy. For performance and productivity effectiveness, I/O traffic is kept local where possible and practical, reducing cross-site network workload. Bear in mind that the best I/O is the one you do not have to do, the second is the one with the least impact.

This means if you can address I/Os as close to the application as possible (e.g. locality of reference), that is a better I/O. On the other hand, when data is not local, then the best I/O is the one involving a local or remote site with least overhead impact to applications, as well as server storage I/O (including networks) resources. Also keep in mind that with vSAN you can fine tune availability, resiliency and data protection to meet various needs by adjusting fault tolerant mode (FTM) to address a different number of failures to tolerate.

server storage I/O locality of reference

Network and cloud friendly Unicast Communication enhancements. To improve performance, availability, and capacity (CPU demand reduction) multicast communications are no longer used making for easier, simplified single site and stretched cluster configurations. When vSAN clusters upgrade to V6.6 unicast is enabled.

VMware vSAN unicast
Image via VMware

Gaining insight, awareness, adding intelligence to avoid flying blind, introducing vSAN Cloud Analytics and Proactive Guidance. Part of a VMware customer, experience improvement program, leverages cloud-based health checks for easy online known issue detection along with relevant knowledge bases pieces as well as other support notices. Whether you choose to refer to this feature as advanced analytics, artificial intelligence (AI), proactive rules enabled management problem isolation, solving resolution I will leave that up to you.

VMware vSAN cloud analytics
Image via VMware

Part of the new tools analytics capabilities and prescriptive problem resolution (hmm, some might call that AI or advanced analytics, just saying), health check issues are identified, notifications along with suggested remediation. Another feature is the ability to leverage continuous proactive updates for advance remediation vs. waiting for subsequent vSAN releases. Net result and benefit are reducing time, the complexity of troubleshooting converged data infrastructure issues spanning servers, storage, I/O networking, hardware, software, cloud, and configuration. In other words, enable you more time to be productive vs. finding and fixing problems leveraging informed awareness for smart decision-making.

Where to Learn More

The following are additional resources to find out more about vSAN and related technologies.

What this all means

Continue reading more about VMware vSAN 6.6 in part I here, part II (just the speeds feeds please) located here, part IV (scaling ROBO and data centers today) found here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

Ok, nuff said (for now…).

Cheers
Gs

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

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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VMware vSAN V6.6 Part IV (HCI scaling ROBO and data centers today)

server storage I/O trends

VMware vSAN V6.6 Part IV (HCI scaling ROBO and data centers today)

In case you missed it, VMware announced vSAN v6.6 hyper-converged infrastructure (HCI) software defined data infrastructure solution. This is the fourth of a five-part series about VMware vSAN V6.6. View Part I here, Part II (just the speeds feeds please) is located here, part III (reducing cost and complexity) located here, as well as part V here (VMware vSAN evolution, where to learn more and summary).

VMware vSAN 6.6
Image via VMware

For those who are not aware, vSAN is a VMware virtual Storage Area Network (e.g. vSAN) that is software-defined, part of being a software-defined data infrastructure (SDDI) and software-defined data center (SDDC). Besides being software-defined vSAN is HCI combining compute (server), I/O networking, storage (space and I/O) along with hypervisors, management, and other tools.

Scaling HCI for ROBO and data centers today and for tomorrow

Scaling with stability for today and tomorrow. This includes addressing your applications Performance, Availability, Capacity and Economics (PACE) workload requirements today and for the future. By scaling with stability means boosting performance, availability (data protection, security, resiliency, durable, FTT), effective capacity without one of those attributes compromising another.

VMware vSAN data center scaling
Image via VMware

Scaling today for tomorrow also means adapting to today’s needs while also flexible to evolve with new application workloads, hardware as well as a cloud (public, private, hybrid, inter and intra-cloud). As part of continued performance improvements, enhancements to optimize for higher performance flash SSD including NVMe based devices.

VMware vSAN cloud analytics
Image via VMware

Part of scaling with stability means enhancing performance (as well as productivity) or the effectiveness of a solution. Keep in mind that efficiency is often associated with storage (or server or network) space capacity savings or reductions. In that context then effectiveness means performance and productivity or how much work can be done with least overhead impact. With vSAN, V6.6 performance enhancements include reduced checksum overhead, enhanced compression, and deduplication, along with destaging optimizations.

Other enhancements that help collectively contribute to vSAN performance improvements include VMware object handling (not to be confused with cloud or object storage S3 or Swift objects) as well as faster iSCSI for vSAN. Also improved are more accurate refined cache sizing guidelines. Keep in mind that a little bit of NAND flash SSD or SCM in the right place can have a significant benefit, while a lot of flash cache costs much cash.

Part of enabling and leveraging new technology today includes support for larger capacity 1.6TB flash SSD drives for cache, as well as lower read latency with 3D XPoint and NVMe drives such as those from Intel among others. Refer to the VMware vSAN HCL for current supported devices which continue evolve along with the partner ecosystem. Future proofing is also enabled where you can grow from today to tomorrow as new storage class memories (SCM) among other flash SSD as well as NVMe enhanced storage among other technologies are introduced into the market as well as VMware vSAN HCL.

VMware vSAN and data center class applications
Image via VMware

Traditional CI and in particular many HCI solutions have been optimized or focused on smaller application workloads including VDI resulting in the perception that HCI, in general, is only for smaller environments, or larger environment non-mission critical workloads. With vSAN V6.6 VMware is addressing and enabling larger environment mission critical applications including Intersystem Cache medical health management software among others. Other application workload extensions including support for higher performance demanding Hadoop big data analytics, a well as extending virtual desktop infrastructure (VDI) workspace with XenDesktop/XenApp, along with Photon 1.1 container support.

What about VMware vSAN 6.6. Packaging and License Options

As part of vSAN 6.6 VMware several solution bundle packaged options for the data center as well as smaller ROBO environment. Contact your VMware representative or partner to learn more about specific details.

VMware vSAN cloud analytics
Image via VMware

VMware vSAN cloud analytics
Image via VMware

Where to Learn More

The following are additional resources to find out more about vSAN and related technologies.

What this all means

Continue reading more about VMware vSAN 6.6 in part I here, part II (just the speeds feeds please) is located here, part III (reducing cost and complexity) located here as well as part V here (VMware vSAN evolution, where to learn more and summary).

Ok, nuff said (for now…).

Cheers
Gs

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

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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VMware vSAN V6.6 Part V (vSAN evolution and summary)

server storage I/O trends

VMware vSAN V6.6 Part V (vSAN evolution and summary)

In case you missed it, VMware announced vSAN v6.6 hyper-converged infrastructure (HCI) software defined data infrastructure solution. This is the fifth of a five-part series about VMware vSAN V6.6. View Part I here, Part II (just the speeds feeds please) is located here, part III (reducing cost and complexity) found here, part IV (scaling ROBO and data centers today) located here.

VMware vSAN 6.6
Image via VMware

For those who are not aware, vSAN is a VMware virtual Storage Area Network (e.g. vSAN) that is software-defined, part of being a software-defined data infrastructure (SDDI) and software-defined data center (SDDC). Besides being software-defined vSAN is HCI combining compute (server), I/O networking, storage (space and I/O) along with hypervisors, management, and other tools.

How has vSAN (formerly referred to as VSAN) Evolved

A quick recap of the VMware vSAN progression which first appeared as part of vSphere 5.5. (e.g. vSAN 5.5 can be thought of 1.0 in some ways) consists of several releases. Since vSAN is tightly integrated with VMware vSphere along with associated management tools, there is a correlation between enhancements to the underlying hypervisor, and added vSAN functionality. Keep in mind sometimes by seeing where something has been, helps to view where going.

Previous vSAN enhancements include:

  • 5.5 Hybrid (mixed HDD and flash)
  • 6.2 (2016) All flash (e.g. AFA) versions included data footprint reduction (DFR) technologies such as compression and dedupe along with performance Quality of Service (QoS) enhancements.
  • 6.5 Cross Cloud functionality including the announcement of container support, cloud-native apps, as well as upcoming vSphere, vSAN, NSX and other VMware software-defined data center (SDDC) and software-defined data infrastructure (SDDI) technology running natively on AWS (not on EC2) cloud infrastructure.
  • 6.6 Modern data infrastructure flexibility, scalability, resiliency, extensibility including performance, availability, capacity and economics (PACE).

V5.5

  • Distributed RAID
  • Per-VM SPBM
  • Set and change FTT via policy
  • In-kernel hyper-convergence engine
  • RVC and Observer

V6.0

  • All-flash architecture
  • Perf improvements (4xIOPS)
  • 64-node support
  • High-density storage blades
  • Fault domain awareness
  • Scalable snapshots and clones
  • Disk enclosure management

V6.1

  • Windows Failover Clustering
  • Oracle RAC support
  • HW checksum and encryption
  • 2-node ROBO mode
  • UltraDIMM and NVMe support
  • Stretch clusters
  • 5 min RPO (vSphere Rep)
  • SMP-FT support
  • Health Check, vROps, Log Insight

V6.2

  • IPv6 support
  • Software checksum
  • Nearline dedupe and compression on all-flash
  • Erasure coding on all-flash
  • QoS IOPS limits
  • Performance monitoring service

V6.5

  • iSCSI
  • 2-Node direct connect
  • PowerCLI
  • Public APIs and SDK
  • 512e support
  • All-Flash to all editions

Where to Learn More

The following are additional resources to find out more about vSAN and related technologies.

What this all means, wrap up and summary

VMware continues to extend the software-defined data center (SDDC) and Software-Defined Data Infrastructure (SDDI) ecosystem with vSAN to address the needs from smaller SMB and ROBO environments to larger SME and enterprise workloads. To me a theme with V6.6 is expanding resiliency, scalability with stability to expand vSAN upmarket as well as into new workloads similar to how vSphere has evolved.

With each new release, vSAN is increasing its feature, functionality, resiliency and extensiveness associated with traditional storage and non-CI or HCI solutions. Overall a good set of enhancements as vSAN continues its evolution looking back just a few years ago, to where it is today and will be in the future. If you have not looked at vSAN recently, take some time beyond reading this piece to learn some more.

Ok, nuff said (for now…).

Cheers
Gs

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

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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March 2017 Server StorageIO Data Infrastructure Update Newsletter

Volume 17, Issue III

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

First a reminder world backup (and recovery) day is on March 31. Following up from the February Server StorageIO update newsletter that had a focus on data protection this edition includes some additional posts, articles, tips and commentary below.

Other data infrastructure (and tradecraft) topics in this edition include cloud, virtual, server, storage and I/O including NVMe as well as networks. Industry trends include new technology and services announcements, cloud services, HPE buying Nimble among other activity. Check out the Converged Infrastructure (CI), Hyper-Converged (HCI) and Cluster in Box (or Cloud in Box) coverage including a recent SNIA webinar I was invited to be the guest presenter for, along with companion post below.

In This Issue

Enjoy this edition of the Server StorageIO update newsletter.

Cheers GS

Data Infrastructure and IT Industry Activity Trends

Some recent Industry Activities, Trends, News and Announcements include:

Dell EMC has discontinued the NVMe direct attached shared DSSD D5 all flash array has been discontinued. At about the same time Dell EMC is shutting down the DSSD D5 product, it has also signaled they will leverage the various technologies including NVMe across their broad server storage portfolio in different ways moving forward. While Dell EMC is shutting down DSSD D5, they are also bringing additional NVMe solutions to the market including those they have been shipping for years (e.g. on the server-side). Learn more about DSSD D5 here and here including perspectives of how it could have been used (plays for playbooks).

Meanwhile NVMe industry activity continues to expand with different solutions from startups such as E8, Excelero, Everspin, Intel, Mellanox, Micron, Samsung and WD SANdisk among others. Also keep in mind, if the answer is NVMe, then what were and are the questions to ask, as well as what are some easy to use benchmark scripts (using fio, diskspd, vdbench, iometer).

Speaking of NVMe, flash and SSDs, Amazon Web Services (AWS) have added new Elastic Cloud Compute (EC2) storage and I/O optimized i3 instances. These new instances are available in various configurations with different amounts of vCPU (cores or logical processors), memory and NVMe SSD capacities (and quantity) along with price.

Note that the price per i3 instance varies not only by its configuration, also for image and region deployed in. The flash SSD capacities range from an entry-level (i3.large) with 2 vCPU (logical processors), 15.25GB of RAM and a single 475GB NVMe SSD that for example in the US East Region was recently priced at $0.156 per hour. At the high-end there is the i3.16xlarge with 64 vCPU (logical processors), 488GB RAM and 8 x 1900GB NVMe SSDs with a recent US East Region price of $4.992 per hour. Note that the vCPU refers to the available number of logical processors available and not necessarily cores or sockets.

Also note that your performance will vary, and while NVMe protocol tends to use less CPU per I/O, if generating a large number of I/Os you will need some CPU. What this means is that if you find your performance limited compared to expectations with the lower end i3 instances, move up to a larger instance and see what happens. If you have a Windows-based environment, you can use a tool such as Diskspd to see what happens with I/O performance as you decrease the number of CPUs used.

Chelsio has announced they are now Microsoft Azure Stack Certified with their iWARP RDMA host adapter solutions, as well as for converged infrastructure (CI), hyper-converged (HCI) and legacy server storage deployments. As part of the announcement, Chelsio is also offering a 30 day no cost trial of their adapters for Microsoft Azure Stack, Windows Server 2016 and Windows 10 client environments. Learn more about the Chelsio trial offer here.

Everspin (the MRAM Spintorque, persistent RAM folks) have announced a new Storage Class Memory (SCM) NVMe accessible family (nvNITRO) of storage accelerator devices (PCIe AiC, U.2). Whats interesting about Everspin is that they are using NVMe for accessing their persistent RAM (e.g. MRAM) making it easily plug compatible with existing operating systems or hypervisors. This means using standard out of the box NVMe drivers where the Everspin SCM appears as a block device (for compatibility) functioning as a low latency, high performance persistent write cache.

Something else interesting besides making the new memory compatible with existing servers CPU complex via PCIe, is how Everspin is demonstrating that NVMe as a general access protocol is not just exclusive to nand flash-based SSDs. What this means is that instead of using non-persistent DRAM, or slower NAND flash (or 3D XPoint SCM), Everspin nvNITRO enables high endurance write cache with persistent to compliment existing NAND flash as well as emerging 3D XPoint based storage. Keep an eye on Everspin as they are doing some interesting things for future discussions.

Google Cloud Services has added additional regions (cloud locations) and other enhancements.

HPE continued buying into server storage I/O data infrastructure technologies announcing an all cash (e.g. no stock) acquisition of Nimble Storage (NMBL). The cash acquisition for a little over $1B USD amounts to $12.50 USD per Nimble share, double what it had traded at. As a refresh, or overview, Nimble is an all flash shared storage system leverage NAND flash solid storage device (SSD) performance. Note that Nimble also partners with Cisco and Lenovo platforms that compete with HPE servers for converged systems.View additional perspectives here.

Riverbed has announced the release of Steelfusion 5 which while its name implies physical hardware metal, the solution is available as tin wrapped (e.g. hardware appliance) software. However the solution is also available for deployment as a VMware virtual appliance for remote office branch office (ROBO) among others. Enhancements include converged functionality such as NAS support along with network latency as well as bandwidth among other features.

Check out other industry news, comments, trends perspectives here.

Server StorageIOblog Posts

Recent and popular Server StorageIOblog posts include:

View other recent as well as past StorageIOblog posts here

Server StorageIO Commentary in the news

Recent Server StorageIO industry trends perspectives commentary in the news.

Via InfoStor: 8 Big Enterprise SSD Trends to Expect in 2017
Watch for increased capacities at lower cost, differentiation awareness of high-capacity, low-cost and lower performing SSDs versus improved durability and performance along with cost capacity enhancements for active SSD (read and write optimized). You can also expect increased support for NVMe both as a back-end storage device with different form factors (e.g., M.2 gum sticks, U.2 8639 drives, PCIe cards) as well as front-end (e.g., storage systems that are NVMe-attached) including local direct-attached and fiber-attached. This means more awareness around NVMe both as front-end and back-end deployment options.

Via SearchITOperations: Storage performance bottlenecks
Sometimes it takes more than an aspirin to cure a headache. There may be a bottleneck somewhere else, in hardware, software, storage system architecture or something else.

Via SearchDNS: Parsing through the software-defined storage hype
Beyond scalability, SDS technology aims for freedom from the limits of proprietary hardware.

Via InfoStor: Data Storage Industry Braces for AI and Machine Learning
AI could also lead to untapped hidden or unknown value in existing data that has no or little perceived value

Via SearchDataCenter: New options to evolve data backup recovery

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

Various Tips, Tools, Technology and Tradecraft Topics

Recent Data Infrastructure Tradecraft Articles, Tips, Tools, Tricks and related topics.

Via ComputerWeekly: Time to restore from backup: Do you know where your data is?
Via IDG/NetworkWorld: Ensure your data infrastructure remains available and resilient
Via IDG/NetworkWorld: Whats a data infrastructure?

Check out Scott Lowe @Scott_Lowe of VMware fame who while having a virtual networking focus has a nice roundup of related data infrastructure topics cloud, open source among others.

Want to take a break from reading or listening to tech talk, check out some of the fun videos including aerial drone (and some technology topics) at www.storageio.tv.

View more tips and articles here

Events and Activities

Recent and upcoming event activities.

May 8-10, 2017 – Dell EMCworld – Las Vegas

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

March 15, 2017 – Webinar – SNIA/BrightTalk – HyperConverged and Storage – 10AM PT

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

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


Cheers
Gs

Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert (and vSAN). 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. Watch for the spring 2017 release of his new book Software-Defined Data Infrastructure Essentials(CRC Press).

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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Preparing For World Backup Day 2017 Are You Prepared

Preparing For World Backup Day 2017 Are You Prepared

server storage I/O trends
Updated 1/17/2018

In case you have forgotten, or were not aware, this coming Friday March 31 is World Backup Day 2017 (and recovery day). The annual day is a to remember to make sure you are protecting your applications, data, information, configuration settings as well as data infrastructures. While the emphasis is on Backup, that also means recovery as well as testing to make sure everything is working properly.

What the Vendors Have To Say

Today I received the following from Kylle over at TOUCHDOWNPR on behalf of their clients providing their perspectives on what World Backup Day means, or how to be prepared. Keep in mind these are not Server StorageIO clients (granted some have been in the past, or I know them, that is a disclosure btw), and this is in no way an endorsement of what they are saying, or advocating. Instead, this is simply passing along to you what was given to me.

Not included in this list? No worries, add your perspectives (politely) to the comments, or, drop me a note, and perhaps I will do a follow-up or addition to this.

Kylle O’Sullivan
TOUCHDOWNPR
Email: Kosullivan@touchdownpr.com
Mobile: 508-826-4482
Skype: Kylle.OSullivan

"Data loss and disruption happens far too often in the enterprise. Research by Ponemon in 2016 estimates the average cost of an unplanned outage has spiralled to nearly $9,000 a minute, causing crippling downtime as well as financial and reputational damage. Legacy backups simply aren’t equipped to provide seamless operations, with zero Recovery Point Objectives (RPO) should a disaster strike. In order to guarantee the availability of applications, synchronous replication with real-time analytics needs to be simple to setup, monitor and manage for application owners and economical to the organization. That way, making zero data loss attainable suddenly becomes a reality.” – Chuck Dubuque, VP Product Marketing, Tintri

“With today’s “always-on” business environment, data loss can destroy a company’s brand and customer trust. A multiple software-based strategy with software-defined and hyperconverged storage infrastructure is the most effective route for a flexible backup plan.  With this tactic, snapshots, replication and stretched clusters can help protect data, whether in a local data center cluster, across data centers or across the cloud. IT teams rely on these software-based policies as the backbone of their disaster recovery implementations as the human element is removed. This is possible as the software-based strategy dictates that all virtual machines are accurately, automatically and consistently replicated to the DR sites. Through this automatic and transparent approach, no administrator action is required, saving employees time, money and providing peace of mind that business can carry on despite any outage.” – Patrick Brennan, Senior Product Marketing Manager, Atlantis Computing

“It’s only a matter of time before your datacenter experiences a significant outage, if it hasn’t already, due to a wide range of causes, from something as simple as human error or power failure to criminal activity like ransomware and cyberattacks, or even more catastrophic events like hurricanes. Shifting thinking to ‘when’ as opposed to ‘if’ something like this happens is crucial; crucial to building a more flexible and resilient IT infrastructure that can withstand any kind of disruption resulting in negative impact on business performance. World Backup Day reminds us of the importance of both having a backup plan in place and as well as conducting regular reviews of current and new technology to do everything possible to keep business running without interruption. Organizations today are highly aware that they are heavily dependent on data and critical applications, and that losing even just an hour of data can greatly harm revenues and brand reputation, sometimes beyond repair. Savvy businesses are taking an all-inclusive approach to this problem that incorporates cloud-based technologies into their disaster recovery plans. And with consistent testing and automation, they are ensuring that those plans are extremely simple to execute against in even the most challenging of situations, a key element of successfully avoiding damaging downtime.” Rob Strechay, VP Product, Zerto

“Data is one of the most valuable business assets and when it comes to data protection chief among its IT challenges is the ever-growing rate of data and the associated vulnerability. Backup needs to be reliable, fast and cost efficient. Organizations are on the defensive after a disaster and being able to recover critical data within minutes is crucial. Breakthroughs in disk technologies and pricing have led to very dense arrays that are power, cost and performance efficient. Backup has been revolutionized and organizations need to ensure they are safeguarding their most valuable commodity – not just now but for the long term. Secure archive platforms are complementary and create a complete recovery strategy.”  – Geoff Barrall, COO, Nexsan

Consider the DR Options that Object Storage Adds
“Data backup and disaster recovery used to be treated as separate processes, which added complexity. But with object storage as a backup target you now have multiple options to bring backup and DR together in a single flow. You can configure a hybrid cloud and tier a portion of your data to the public cloud, or you can locate object storage nodes at different locations and use replication to provide geographic separation. So, this World Backup Day, consider how object storage has increased your options for meeting this critical need." – Jon Toor, Cloudian CMO

Whats In Your Data Protection Toolbox

What tools, technologies do you have in your data protection toolbox? Do you only have a hammer and thus answer to every situation is that it looks like a nail? Or, do you have multiple tools, technologies combined with your various tradecraft experiences to applice different techniques?

storageio data protection toolbox

Where To Learn More

Following these links to additional related material about backup, restore, availability, data protection, BC, BR, DR along with associated topics, trends, tools, technologies as well as techniques.

Time to restore from backup: Do you know where your data is?
February 2017 Server StorageIO Update Newsletter
Data Infrastructure Server Storage I/O Tradecraft Trends
Data Infrastructure Server Storage I/O related Tradecraft Overview
Data Infrastructure Primer and Overview (Its Whats Inside The Data Center)
What’s a data infrastructure?
Ensure your data infrastructure remains available and resilient
Part III Until the focus expands to data protection – Taking action
Welcome to the Data Protection Diaries
Backup, Big data, Big Data Protection, CMG & More with Tom Becchetti Podcast
Six plus data center software defined management dashboards
Cloud Storage Concerns, Considerations and Trends
Software Defined, Cloud, Bulk and Object Storage Fundamentals (www.objectstoragecenter.com)

Data Infrastructure Overview, Its Whats Inside of Data Centers
All You Need To Know about Remote Office/Branch Office Data Protection Backup (free webinar with registration)
Software Defined, Converged Infrastructure (CI), Hyper-Converged Infrastructure (HCI) resources
The SSD Place (SSD, NVM, PM, SCM, Flash, NVMe, 3D XPoint, MRAM and related topics)
The NVMe Place (NVMe related topics, trends, tools, technologies, tip resources)
Data Protection Diaries (Archive, Backup/Restore, BC, BR, DR, HA, RAID/EC/LRC, Replication, Security)
Software Defined Data Infrastructure Essentials (CRC Press 2017) including SDDC, Cloud, Container and more
Various Data Infrastructure related events, webinars and other activities

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

Backup of data is important, so to is recovery which also means testing. Testing means more than just if you can read the tape, disk, SSD, USB, cloud or other medium (or location). Go a step further and verify that not only you can read the data from the medium, also if your applications or software are able to use it. Have you protected your applications (e.g. not just the data), security keys, encryption, access, dedupe and other certificates along with metadata as well as other settings? Do you have a backup or protection copy of your protection including recovery tools? What granularity of protection and recovery do you have in place, when did you test or try it recently? In other words, what this all means is be prepared, find and fix issues, as well as in the course of testing, don’t cause a disaster.

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.

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Backup, Big data, Big Data Protection, CMG & More with Tom Becchetti Podcast

server storage I/O trends

In this Server StorageIO podcast episode, I am joined by Tom Becchetti (@tbecchetti) for a Friday afternoon conversation recorded live at Meisters in Scandia Minnesota (thanks to the Meisters crew!).

Tom Becchetti

For those of you who may not know Tom, he has been in the IT, data center, data infrastructure, server and storage (as well as data protection) industry for many years (ok decades) as a customer and vendor in various roles. Not surprising our data infrastructure discussion involves server, software, storage, big data, backup, data protection, big data protection, CMG (Computer Measurement Group @mspcmg), copy data management, cloud, containers, fundamental tradecraft skills among other related topics.

Check out Tom on twitter @tbecchetti and @mspcmg as well as his new website www.storagegodfather.com. Listen to the podcast discussion here (42 minutes) as well as on iTunes.

Also available on 

Ok, nuff said for now…

Cheers
Gs

Greg Schulz – Microsoft MVP Cloud and Data Center Management, VMware vExpert (and vSAN). 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. Watch for the spring 2017 release of his new book Software-Defined Data Infrastructure Essentials (CRC Press).

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 2006-2023 Server StorageIO(R) and UnlimitedIO. All Rights Reserved.

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Big Files Lots of Little File Processing Benchmarking with Vdbench

Big Files Lots of Little File Processing Benchmarking with Vdbench


server storage data infrastructure i/o File Processing Benchmarking with Vdbench

Updated 2/10/2018

Need to test a server, storage I/O networking, hardware, software, services, cloud, virtual, physical or other environment that is either doing some form of file processing, or, that you simply want to have some extra workload running in the background for what ever reason? An option is File Processing Benchmarking with Vdbench.

I/O performance

Getting Started


Here’s a quick and relatively easy way to do it with Vdbench (Free from Oracle). Granted there are other tools, both for free and for fee that can similar things, however we will leave those for another day and post. Here’s the con to this approach, there is no Uui Gui like what you have available with some other tools Here’s the pro to this approach, its free, flexible and limited by your creative, amount of storage space, server memory and I/O capacity.

If you need a background on Vdbench and benchmarking, check out the series of related posts here (e.g. www.storageio.com/performance).

Get and Install the Vdbench Bits and Bytes


If you do not already have Vdbench installed, get a copy from the Oracle or Source Forge site (now points to Oracle here).

Vdbench is free, you simply sign-up and accept the free license, select the version down load (it is a single, common distribution for all OS) the bits as well as documentation.

Installation particular on Windows is really easy, basically follow the instructions in the documentation by copying the contents of the download folder to a specified directory, set up any environment variables, and make sure that you have Java installed.

Here is a hint and tip for Windows Servers, if you get an error message about counters, open a command prompt with Administrator rights, and type the command:

$ lodctr /r


The above command will reset your I/O counters. Note however that command will also overwrite counters if enabled so only use it if you have to.

Likewise *nix install is also easy, copy the files, make sure to copy the applicable *nix shell script (they are in the download folder), and verify Java is installed and working.

You can do a vdbench -t (windows) or ./vdbench -t (*nix) to verify that it is working.

Vdbench File Processing

There are many options with Vdbench as it has a very robust command and scripting language including ability to set up for loops among other things. We are only going to touch the surface here using its file processing capabilities. Likewise, Vdbench can run from a single server accessing multiple storage systems or file systems, as well as running from multiple servers to a single file system. For simplicity, we will stick with the basics in the following examples to exercise a local file system. The limits on the number of files and file size are limited by server memory and storage space.

You can specify number and depth of directories to put files into for processing. One of the parameters is the anchor point for the file processing, in the following examples =S:\SIOTEMP\FS1 is used as the anchor point. Other parameters include the I/O size, percent reads, number of threads, run time and sample interval as well as output folder name for the result files. Note that unlike some tools, Vdbench does not create a single file of results, rather a folder with several files including summary, totals, parameters, histograms, CSV among others.


Simple Vdbench File Processing Commands

For flexibility and ease of use I put the following three Vdbench commands into a simple text file that is then called with parameters on the command line.
fsd=fsd1,anchor=!fanchor,depth=!dirdep,width=!dirwid,files=!numfiles,size=!filesize

fwd=fwd1,fsd=fsd1,rdpct=!filrdpct,xfersize=!fxfersize,fileselect=random,fileio=random,threads=!thrds

rd=rd1,fwd=fwd1,fwdrate=max,format=yes,elapsed=!etime,interval=!itime

Simple Vdbench script

# SIO_vdbench_filesystest.txt

#

# Example Vdbench script for file processing

#

# fanchor = file system place  where directories and files will be created

# dirwid = how wide should the directories be (e.g. how many directories wide)

# numfiles = how many files per directory

# filesize = size in in k, m, g e.g. 16k = 16KBytes

# fxfersize = file I/O transfer size in kbytes

# thrds = how many threads or workers

# etime = how long to run in minutes (m) or hours (h)

# itime = interval sample time e.g. 30 seconds

# dirdep = how deep the directory tree

# filrdpct = percent of reads e.g. 90 = 90 percent reads

# -p processnumber = optional specify a process number, only needed if running multiple vdbenchs at same time, number should be unique

# -o output file that describes what being done and some config info

#

# Sample command line shown for Windows, for *nix add ./

#

# The real Vdbench script with command line parameters indicated by !=

#


fsd=fsd1,anchor=!fanchor,depth=!dirdep,width=!dirwid,files=!numfiles,size=!filesize


fwd=fwd1,fsd=fsd1,rdpct=!filrdpct,xfersize=!fxfersize,fileselect=random,fileio=random,threads=!thrds


rd=rd1,fwd=fwd1,fwdrate=max,format=yes,elapsed=!etime,interval=!itime

Big Files Processing Script


With the above script file defined, for Big Files I specify a command line such as the following.
$ vdbench -f SIO_vdbench_filesystest.txt fanchor=S:\SIOTemp\FS1 dirwid=1 numfiles=60 filesize=5G fxfersize=128k thrds=64 etime=10h itime=30 numdir=1 dirdep=1 filrdpct=90 -p 5576 -o SIOWS2012R220_NOFUZE_5Gx60_BigFiles_64TH_STX1200_020116

Big Files Processing Example Results


The following is one of the result files from the folder of results created via the above command for Big File processing showing totals.



Run totals


21:09:36.001 Starting RD=format_for_rd1


Feb 01, 2016 .Interval. .ReqstdOps.. ...cpu%...  read ....read.... ...write.... ..mb/sec... mb/sec .xfer.. ...mkdir... ...rmdir... ..create... ...open.... ...close... ..delete...

                          rate  resp total  sys   pct   rate  resp   rate  resp  read write  total    size  rate  resp  rate  resp  rate  resp  rate  resp  rate  resp  rate  resp

21:23:34.101   avg_2-28 2848.2  2.70   8.8 8.32   0.0    0.0  0.00 2848.2  2.70  0.00 356.0 356.02  131071   0.0  0.00   0.0  0.00   0.1 109176   0.1  0.55   0.1  2006   0.0  0.00


21:23:35.009 Starting RD=rd1; elapsed=36000; fwdrate=max. For loops: None


07:23:35.000 avg_2-1200 4939.5  1.62  18.5 17.3  90.0 4445.8  1.79  493.7  0.07 555.7 61.72 617.44  131071   0.0  0.00   0.0  0.00   0.0  0.00   0.1  0.03   0.1  2.95   0.0  0.00

Lots of Little Files Processing Script


For lots of little files, the following is used.



$ vdbench -f SIO_vdbench_filesystest.txt fanchor=S:\SIOTEMP\FS1 dirwid=64 numfiles=25600 filesize=16k fxfersize=1k thrds=64 etime=10h itime=30 dirdep=1 filrdpct=90 -p 5576 -o SIOWS2012R220_NOFUZE_SmallFiles_64TH_STX1200_020116

Lots of Little Files Processing Example Results


The following is one of the result files from the folder of results created via the above command for Big File processing showing totals.
Run totals


09:17:38.001 Starting RD=format_for_rd1


Feb 02, 2016 .Interval. .ReqstdOps.. ...cpu%...  read ....read.... ...write.... ..mb/sec... mb/sec .xfer.. ...mkdir... ...rmdir... ..create... ...open.... ...close... ..delete...

                          rate  resp total  sys   pct   rate  resp   rate  resp  read write  total    size  rate  resp  rate  resp  rate  resp  rate  resp  rate  resp  rate  resp

09:19:48.016    avg_2-5  10138  0.14  75.7 64.6   0.0    0.0  0.00  10138  0.14  0.00 158.4 158.42   16384   0.0  0.00   0.0  0.00 10138  0.65 10138  0.43 10138  0.05   0.0  0.00


09:19:49.000 Starting RD=rd1; elapsed=36000; fwdrate=max. For loops: None


19:19:49.001 avg_2-1200 113049  0.41  67.0 55.0  90.0 101747  0.19  11302  2.42 99.36 11.04 110.40    1023   0.0  0.00   0.0  0.00   0.0  0.00  7065  0.85  7065  1.60   0.0  0.00

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

The above examples can easily be modified to do different things particular if you read the Vdbench documentation on how to setup multi-host, multi-storage system, multiple job streams to do different types of processing. This means you can benchmark a storage systems, server or converged and hyper-converged platform, or simply put a workload on it as part of other testing. There are even options for handling data footprint reduction such as compression and dedupe.

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.

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Data Protection Diaries: Are your restores ready for World Backup Day 2015?

Storage I/O trends

Data Protection Diaries: Are your restores ready for World Backup Day 2015?

This is part of an ongoing data protection diaries series of post about, well, data protection and what I’m doing pertaining to World Backup Day 2015.

In case you forgot or did not know, World Backup Day is March 31 2015 (@worldbackupday) so now is a good time to be ready. The only challenge that I have with the World Backup Day (view their site here) that has gone on for a few years know is that it is a good way to call out the importance of backing up or protecting data. However its time to also put more emphasis and focus on being able to make sure those backups or protection copies actually work.

By this I mean doing more than making sure that your data can be read from tape, disk, SSD or cloud service actually going a step further and verifying that restored data can actually be used (read, written, etc).

The Problem, Issue, Challenge, Opportunity and Need

The problem, issue and challenges are simple, are your applications, systems and data protected as well as can you use those protection copies (e.g. backups, snapshots, replicas or archives) when as well as were needed?

storage I/O data protection

The opportunity is simple, avoiding downtime or impact to your business or organization by being proactive.

Understanding the challenge and designing a strategy

The following is my preparation checklist for World Backup Data 2015 (e.g. March 31 2015) which includes what I need or want to protect, as well as some other things to be done including testing, verification, address (remediate or fix) known issues while identifying other areas for future enhancements. Thus perhaps like yours, data protection for my environment which includes physical, virtual along with cloud spanning servers to mobile devices is constantly evolving.

collect TPM metrics from SQL Server with hammerdb

My data protection preparation, checklist and to do list

Finding a solution

While I already have a strategy, plan and solution that encompasses different tools, technologies and techniques, they are also evolving. Part of the evolving is to improve while also exploring options to use new and old things in new ways as well as eat my down dog food or walk the talk vs. talk the talk. The following figure provides a representation of my environment that spans physical, virtual and clouds (more than one) and how different applications along with systems are protected against various threats or risks. Key is that not all applications and data are the same thus enabling them to be protected in different ways as well as over various intervals. Needless to say there is more to how, when, where and with what different applications and systems are protected in my environment than show, perhaps more on that in the future.

server storageio and unlimitedio data protection

Some of what my data protection involves for Server StorageIO

Taking action

What I’m doing is going through my checklist to verify and confirm the various items on the checklist as well as find areas for improvement which is actually an ongoing process.

Do I find things that need to be corrected?

Yup, in fact found something that while it was not a problem, identified a way to improve on a process that will once fully implemented enabler more flexibility both if a restoration is needed, as well as for general everyday use not to mention remove some complexity and cost.

Speaking of lessons learned, check this out that ties into why you want 4 3 2 1 based data protection strategies.

Storage I/O trends

Where to learn more

Here are some extra links to have a look at:

Data Protection Diaries
Cloud conversations: If focused on cost you might miss other cloud storage benefits
5 Tips for Factoring Software into Disaster Recovery Plans
Remote office backup, archiving and disaster recovery for networking pros
Cloud conversations: Gaining cloud confidence from insights into AWS outages (Part II)
Given outages, are you concerned with the security of the cloud?
Data Archiving: Life Beyond Compliance
My copies were corrupted: The 3-2-1 rule
Take a 4-3-2-1 approach to backing up data
Cloud and Virtual Data Storage Networks – Chapter 8 (CRC/Taylor and Francis)

What this all means and wrap-up

Be prepared, be proactive when it comes to data protection and business resiliency vs. simply relying reacting and recovering hoping that all will be ok (or works).

Take a few minutes (or longer) and test your data protection including backup to make sure that you can:

a) Verify that in fact they are working protecting applications and data in the way expected

b) Restore data to an alternate place (verify functionality as well as prevent a problem)

c) Actually use the data meaning it is decrypted, inflated (un-compressed, un-de duped) and security certificates along with ownership properties properly applied

d) Look at different versions or generations of protection copies if you need to go back further in time

e) Identify area of improvement or find and isolate problem issues in advance vs. finding out after the fact

Time to get back to work checking and verifying things as well as attending to some other items.

Ok, nuff said, for now…

Cheers gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved

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How to test your HDD SSD or all flash array (AFA) storage fundamentals

How to test your HDD SSD AFA Hybrid or cloud storage

server storage data infrastructure i/o hdd ssd all flash array afa fundamentals

Updated 2/14/2018

Over at BizTech Magazine I have a new article 4 Ways to Performance Test Your New HDD or SSD that provides a quick guide to verifying or learning what the speed characteristic of your new storage device are capable of.

An out-take from the article used by BizTech as a "tease" is:

These four steps will help you evaluate new storage drives. And … psst … we included the metrics that matter.

Building off the basics, server storage I/O benchmark fundamentals

The four basic steps in the article are:

  • Plan what and how you are going to test (what’s applicable for you)
  • Decide on a benchmarking tool (learn about various tools here)
  • Test the test (find bugs, errors before a long running test)
  • Focus on metrics that matter (what’s important for your environment)

Server Storage I/O performance

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

To some the above (read the full article here) may seem like common sense tips and things everybody should know otoh there are many people who are new to servers storage I/O networking hardware software cloud virtual along with various applications, not to mention different tools.

Thus the above is a refresher for some (e.g. Dejavu) while for others it might be new and revolutionary or simply helpful. Interested in HDD’s, SSD’s as well as other server storage I/O performance along with benchmarking tools, techniques and trends check out the collection of links here (Server and Storage I/O Benchmarking and Performance Resources).

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.

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I/O, I/O how well do you know good bad ugly server storage I/O iops?

How well do you know good bad ugly I/O iops?

server storage i/o iops activity data infrastructure trends

Updated 2/10/2018

There are many different types of server storage I/O iops associated with various environments, applications and workloads. Some I/Os activity are iops, others are transactions per second (TPS), files or messages per time (hour, minute, second), gets, puts or other operations. The best IO is one you do not have to do.

What about all the cloud, virtual, software defined and legacy based application that still need to do I/O?

If no IO operation is the best IO, then the second best IO is the one that can be done as close to the application and processor as possible with the best locality of reference.

Also keep in mind that aggregation (e.g. consolidation) can cause aggravation (server storage I/O performance bottlenecks).

aggregation causes aggravation
Example of aggregation (consolidation) causing aggravation (server storage i/o blender bottlenecks)

And the third best?

It’s the one that can be done in less time or at least cost or effect to the requesting application, which means moving further down the memory and storage stack.

solving server storage i/o blender and other bottlenecks
Leveraging flash SSD and cache technologies to find and fix server storage I/O bottlenecks

On the other hand, any IOP regardless of if for block, file or object storage that involves some context is better than those without, particular involving metrics that matter (here, here and here [webinar] )

Server Storage I/O optimization and effectiveness

The problem with IO’s is that they are a basic operations to get data into and out of a computer or processor, so there’s no way to avoid all of them, unless you have a very large budget. Even if you have a large budget that can afford an all flash SSD solution, you may still meet bottlenecks or other barriers.

IO’s require CPU or processor time and memory to set up and then process the results as well as IO and networking resources to move data too their destination or retrieve them from where they are stored. While IO’s cannot be eliminated, their impact can be greatly improved or optimized by, among other techniques, doing fewer of them via caching and by grouping reads or writes (pre-fetch, write-behind).

server storage I/O STI and SUT

Think of it this way: Instead of going on multiple errands, sometimes you can group multiple destinations together making for a shorter, more efficient trip. However, that optimization may also mean your drive will take longer. So, sometimes it makes sense to go on a couple of quick, short, low-latency trips instead of one larger one that takes half a day even as it accomplishes many tasks. Of course, how far you have to go on those trips (i.e., their locality) makes a difference about how many you can do in a given amount of time.

Locality of reference (or proximity)

What is locality of reference?

This refers to how close (i.e., its place) data exists to where it is needed (being referenced) for use. For example, the best locality of reference in a computer would be registers in the processor core, ready to be acted on immediately. This would be followed by levels 1, 2, and 3 (L1, L2, and L3) onboard caches, followed by main memory, or DRAM. After that comes solid-state memory typically NAND flash either on PCIe cards or accessible on a direct attached storage (DAS), SAN, or NAS device. 

server storage I/O locality of reference

Even though a PCIe NAND flash card is close to the processor, there still remains the overhead of traversing the PCIe bus and associated drivers. To help offset that impact, PCIe cards use DRAM as cache or buffers for data along with meta or control information to further optimize and improve locality of reference. In other words, this information is used to help with cache hits, cache use, and cache effectiveness vs. simply boosting cache use.

SSD to the rescue?

What can you do the cut the impact of IO’s?

There are many steps one can take, starting with establishing baseline performance and availability metrics.

The metrics that matter include IOP’s, latency, bandwidth, and availability. Then, leverage metrics to gain insight into your application’s performance.

Understand that IO’s are a fact of applications doing work (storing, retrieving, managing data) no matter whether systems are virtual, physical, or running up in the cloud. But it’s important to understand just what a bad IO is, along with its impact on performance. Try to identify those that are bad, and then find and fix the problem, either with software, application, or database changes. Perhaps you need to throw more software caching tools, hypervisors, or hardware at the problem. Hardware may include faster processors with more DRAM and faster internal busses.

Leveraging local PCIe flash SSD cards for caching or as targets is another option.

You may want to use storage systems or appliances that rely on intelligent caching and storage optimization capabilities to help with performance, availability, and capacity.

Where to gain insight into your server storage I/O environment

There are many tools that you can be used to gain insight into your server storage I/O environment across cloud, virtual, software defined and legacy as well as from different layers (e.g. applications, database, file systems, operating systems, hypervisors, server, storage, I/O networking). Many applications along with databases have either built-in or optional tools from their provider, third-party, or via other sources that can give information about work activity being done. Likewise there are tools to dig down deeper into the various data information infrastructure to see what is happening at the various layers as shown in the following figures.

application storage I/O performance
Gaining application and operating system level performance insight via different tools

windows and linux storage I/O performance
Insight and awareness via operating system tools on Windows and Linux

In the above example, Spotlight on Windows (SoW) which you can download for free from Dell here along with Ubuntu utilities are shown, You could also use other tools to look at server storage I/O performance including Windows Perfmon among others.

vmware server storage I/O
Hypervisor performance using VMware ESXi / vsphere built-in tools

vmware server storage I/O performance
Using Visual ESXtop to dig deeper into virtual server storage I/O performance

vmware server storage i/o cache
Gaining insight into virtual server storage I/O cache performance

Wrap up and summary

There are many approaches to address (e.g. find and fix) vs. simply move or mask data center and server storage I/O bottlenecks. Having insight and awareness into how your environment along with applications is important to know to focus resources. Also keep in mind that a bit of flash SSD or DRAM cache in the applicable place can go along way while a lot of cache will also cost you cash. Even if you cant eliminate I/Os, look for ways to decrease their impact on your applications and systems.

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

>Keep in mind: SSD including flash and DRAM among others are in your future, the question is where, when, with what, how much and whose technology or packaging.

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.

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Revisiting RAID data protection remains relevant resource links

Revisiting RAID data protection remains relevant and resources

Storage I/O trends

Updated 2/10/2018

RAID data protection remains relevant including erasure codes (EC), local reconstruction codes (LRC) among other technologies. If RAID were really not relevant anymore (e.g. actually dead), why do some people spend so much time trying to convince others that it is dead or to use a different RAID level or enhanced RAID or beyond raid with related advanced approaches?

When you hear RAID, what comes to mind?

A legacy monolithic storage system that supports narrow 4, 5 or 6 drive wide stripe sets or a modern system support dozens of drives in a RAID group with different options?

RAID means many things, likewise there are different implementations (hardware, software, systems, adapters, operating systems) with various functionality, some better than others.

For example, which of the items in the following figure come to mind, or perhaps are new to your RAID vocabulary?

RAID questions

There are Many Variations of RAID Storage some for the enterprise, some for SMB, SOHO or consumer. Some have better performance than others, some have poor performance for example causing extra writes that lead to the perception that all parity based RAID do extra writes (some actually do write gathering and optimization).

Some hardware and software implementations using WBC (write back cache) mirrored or battery backed-BBU along with being able to group writes together in memory (cache) to do full stripe writes. The result can be fewer back-end writes compared to other systems. Hence, not all RAID implementations in either hardware or software are the same. Likewise, just because a RAID definition shows a particular theoretical implementation approach does not mean all vendors have implemented it in that way.

RAID is not a replacement for backup rather part of an overall approach to providing data availability and accessibility.

data protection and durability

What’s the best RAID level? The one that meets YOUR needs

There are different RAID levels and implementations (hardware, software, controller, storage system, operating system, adapter among others) for various environments (enterprise, SME, SMB, SOHO, consumer) supporting primary, secondary, tertiary (backup/data protection, archiving).

RAID comparison
General RAID comparisons

Thus one size or approach does fit all solutions, likewise RAID rules of thumbs or guides need context. Context means that a RAID rule or guide for consumer or SOHO or SMB might be different for enterprise and vise versa, not to mention on the type of storage system, number of drives, drive type and capacity among other factors.

RAID comparison
General basic RAID comparisons

Thus the best RAID level is the one that meets your specific needs in your environment. What is best for one environment and application may be different from what is applicable to your needs.

Key points and RAID considerations include:

· Not all RAID implementations are the same, some are very much alive and evolving while others are in need of a rest or rewrite. So it is not the technology or techniques that are often the problem, rather how it is implemented and then deployed.

· It may not be RAID that is dead, rather the solution that uses it, hence if you think a particular storage system, appliance, product or software is old and dead along with its RAID implementation, then just say that product or vendors solution is dead.

· RAID can be implemented in hardware controllers, adapters or storage systems and appliances as well as via software and those have different features, capabilities or constraints.

· Long or slow drive rebuilds are a reality with larger disk drives and parity-based approaches; however, you have options on how to balance performance, availability, capacity, and economics.

· RAID can be single, dual or multiple parity or mirroring-based.

· Erasure and other coding schemes leverage parity schemes and guess what umbrella parity schemes fall under.

· RAID may not be cool, sexy or a fun topic and technology to talk about, however many trendy tools, solutions and services actually use some form or variation of RAID as part of their basic building blocks. This is an example of using new and old things in new ways to help each other do more without increasing complexity.

·  Even if you are not a fan of RAID and think it is old and dead, at least take a few minutes to learn more about what it is that you do not like to update your dead FUD.

Wait, Isn’t RAID dead?

There is some dead marketing that paints a broad picture that RAID is dead to prop up something new, which in some cases may be a derivative variation of parity RAID.

data dispersal
Data dispersal and durability

RAID rebuild improving
RAID continues to evolve with rapid rebuilds for some systems

Otoh, there are some specific products, technologies, implementations that may be end of life or actually dead. Likewise what might be dead, dying or simply not in vogue are specific RAID implementations or packaging. Certainly there is a lot of buzz around object storage, cloud storage, forward error correction (FEC) and erasure coding including messages of how they cut RAID. Catch is that some object storage solutions are overlayed on top of lower level file systems that do things such as RAID 6, granted they are out of sight, out of mind.

RAID comparison
General RAID parity and erasure code/FEC comparisons

Then there are advanced parity protection schemes which include FEC and erasure codes that while they are not your traditional RAID levels, they have characteristic including chunking or sharding data, spreading it out over multiple devices with multiple parity (or derivatives of parity) protection.

Bottom line is that for some environments, different RAID levels may be more applicable and alive than for others.

Via BizTech – How to Turn Storage Networks into Better Performers

  • Maintain Situational Awareness
  • Design for Performance and Availability
  • Determine Networked Server and Storage Patterns
  • Make Use of Applicable Technologies and Techniques

If RAID is alive, what to do with it?

If you are new to RAID, learn more about the past, present and future keeping mind context. Keeping context in mind means that there are different RAID levels and implementations for various environments. Not all RAID 0, 1, 1/0, 10, 2, 3, 4, 5, 6 or other variations (past, present and emerging) are the same for consumer vs. SOHO vs. SMB vs. SME vs. Enterprise, nor are the usage cases. Some need performance for reads, others for writes, some for high-capacity with low performance using hardware or software. RAID Rules of thumb are ok and useful, however keep them in context to what you are doing as well as using.

What to do next?

Take some time to learn, ask questions including what to use when, where, why and how as well as if an approach or recommendation are applicable to your needs. Check out the following links to read some extra perspectives about RAID and keep in mind, what might apply to enterprise may not be relevant for consumer or SMB and vise versa.

Some advise needed on SSD’s and Raid (Via Spiceworks)
RAID 5 URE Rebuild Means The Sky Is Falling (Via BenchmarkReview)
Double drive failures in a RAID-10 configuration (Via SearchStorage)
Industry Trends and Perspectives: RAID Rebuild Rates (Via StorageIOblog)
RAID, IOPS and IO observations (Via StorageIOBlog)
RAID Relevance Revisited (Via StorageIOBlog)
HDDs Are Still Spinning (Rust Never Sleeps) (Via InfoStor)
When and Where to Use NAND Flash SSD for Virtual Servers (Via TheVirtualizationPractice)
What’s the best way to learn about RAID storage? (Via Spiceworks)
Design considerations for the host local FVP architecture (Via Frank Denneman)
Some basic RAID fundamentals and definitions (Via SearchStorage)
Can RAID extend nand flash SSD life? (Via StorageIOBlog)
I/O Performance Issues and Impacts on Time-Sensitive Applications (Via CMG)
The original RAID white paper (PDF) that while over 20 years old, it provides a basis, foundation and some history by Katz, Gibson, Patterson et al
Storage Interview Series (Via Infortrend)
Different RAID methods (Via RAID Recovery Guide)
A good RAID tutorial (Via TheGeekStuff)
Basics of RAID explained (Via ZDNet)
RAID and IOPs (Via VMware Communities)

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

What is my favorite or preferred RAID level?

That depends, for some things its RAID 1, for others RAID 10 yet for others RAID 4, 5, 6 or DP and yet other situations could be a fit for RAID 0 or erasure codes and FEC. Instead of being focused on just one or two RAID levels as the solution for different problems, I prefer to look at the environment (consumer, SOHO, small or large SMB, SME, enterprise), type of usage (primary or secondary or data protection), performance characteristics, reads, writes, type and number of drives among other factors. What might be a fit for one environment would not be a fit for others, thus my preferred RAID level along with where implemented is the one that meets the given situation. However also keep in mind is tying RAID into part of an overall data protection strategy, remember, RAID is not a replacement for backup.

What this all means

Like other technologies that have been declared dead for years or decades, aka the Zombie technologies (e.g. dead yet still alive) RAID continues to be used while the technologies evolves. There are specific products, implementations or even RAID levels that have faded away, or are declining in some environments, yet alive in others. RAID and its variations are still alive, however how it is used or deployed in conjunction with other technologies also is evolving.

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.

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Data Protection Diaries: March 31 World Backup Day is Restore Data Test Time

Storage I/O trends

World Backup Day Generating Awareness About Data Protection

This World Backup Day piece is part of my ongoing Data Protection Diaries series of posts (www.dataprotecitondiaries.com) about trends, strategies, tools and best practices spanning applications, archiving, backup/restore, business continuance (BC), business resiliency (BR), cloud, data footprint reduction (DFR), security, servers, storage and virtualization among other related topic themes.

data protection threat risk scenarios
Different threat risks and reasons to protect your digital assets (data)

March 31 is World Backup Day which means you should make sure that your data and digital assets (photos, videos, music or audio, scanned items) along with other digital documents are protected. Keep in mind that various reasons for protecting, preserving and serving your data regardless of if you are a consumer with needs to protect your home and personal information, or a large business, institution or government agency.

Why World Backup Day and Data Protection Focus

By being protected this means making sure that there are copies of your documents, data, files, software tools, settings, configurations and other digital assets. These copies can be in different locations (home, office, on-site, off-site, in the cloud) as well as for various points in time or recovery point objective (RPO) such as monthly, weekly, daily, hourly and so forth.

Having different copies for various times (e.g. your protection interval) gives you the ability to go back to a specific time to recover or restore lost, stolen, damaged, infected, erased, or accidentally over-written data. Having multiple copies is also a safeguard incase either the data, files, objects or items being backed up or protected are bad, or the copy is damaged, lost or stolen.

Restore Test Time

While the focus of world backup data is to make sure that you are backing up or protecting your data and digital assets, it is also about making sure what you think is being protected is actually occurring. It is also a time to make sure what you think is occurring or know is being done can actually be used when needed (restore, recover, rebuild, reload, rollback among other things that start with R). This means testing that you can find the files, folders, volumes, objects or data items that were protected, use those copies or backups to restore to a different place (you don’t want to create a disaster by over-writing your good data).

In addition to making sure that the data can be restored to a different place, go one more step to verify that the data can actually be used which means has it be decrypted or unlocked, have the security or other rights and access settings along with meta data been applied. While that might seem obvious it is often the obvious that will bite you and cause problems, hence take some time to test that all is working, not to mention get some practice doing restores.

Data Protection and Backup 3 2 1 Rule and Guide

Recently I did a piece based on my own experiences with data protection including Backup as well as Restore over at Spiceworks called My copies were corrupted: The 3-2-1 rule. For those not familiar, or as a reminder 3 2 1 means have more than three copies or better yet, versions stored on at least two different devices, systems, drives, media or mediums in at least one different location from the primary or main copy.

Following is an excerpt from the My copies were corrupted: The 3-2-1 rule piece:

Not long ago I had a situation where something happened to an XML file that I needed. I discovered it was corrupted, and I needed to do a quick restore.

“No worries,” I thought, “I’ll simply copy the most recent version that I had saved to my file server.” No such luck. That file had been just copied and was damaged.

“OK, no worries,” I thought. “That’s why I have a periodic backup copy.” It turns out that had worked flawlessly. Except there was a catch — it had backed up the damaged file. This meant that any and all other copies of the file were also damaged as far back as to when the problem occurred.

Read the full piece here.

Backup and Data Protection Walking the Talk

Yes I eat my own dog food meaning that I practice what I talk about (e.g. walking the talk) leveraging not just a  3 2 1 approach, actually more of a 4 3 2 1 hybrid which means different protection internals, various retention’s and frequencies, not all data gets treated the same, using local disk, removable disk to go off-site as well as cloud. I also test candidly more often by accident using the local, removable and cloud copies when I accidentally delete something, or save the wrong version.

Some of my data and applications are protected throughout the day, others on set schedules that vary from hours to days to weeks to months or more. Yes, some of my data such as large videos or other items that are static do not change, so why backup them up or protect every day, week or month? I also align the type of protection, frequency, retention to meet different threat risks, as well as encrypt data. Part of actually testing and using the restores or recoveries is also determining what certificates or settings are missing, as well as where opportunities exist or needed to enhance data protection.

Closing comments (for now)

Take some time to learn more about data protection including how you can improve or modernize while rethinking what to protect, when, where, why how and with what.

In addition to having copies from different points in time and extra copies in various locations, also make sure that they are secured or encrypted AND make sure to protect your encryption keys. After all, try to find a digital locksmith to unlock your data who is not working for a government agency when you need to get access to your data ;)…

Learn more about data protection including Backup/Restore at www.storageioblog.com/data-protection-diaries-main/ where there are a collection of related posts and presentations including:

Also check out the collection of technology and vendor / product neutral data protection and backup/restore content at BackupU (disclosure: sponsored by Dell Data Protection Software) that includes various webinars and Google+ hangout sessions that I have been involved with.

Watch for more data protection conversations about related trends, themes, technologies, techniques perspectives in my ongoing data protection diaries discussions as well as read more about Backup and other related items at www.storageioblog.com/data-protection-diaries-main/.

Ok, nuff said

Cheers
Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press), The Green and Virtual Data Center (CRC Press) and Resilient Storage Networks (Elsevier)
twitter @storageio

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2024 Server StorageIO and UnlimitedIO LLC All Rights Reserved