iscsi Archives

March 17, 2024March 17, 2024

Microsoft Azure Elastic SAN from Cloud to On-Prem

What is Azure Elastic SAN

Azure Elastic SAN (AES) is a new (now GA) Azure Cloud native storage service that provides scalable, resilient, easy management with rapid provisioning, high performance, and cost-effective storage. AES (figure 1) supports many workloads and computing resources. Workloads that benefit from AES include tier 1 and tier 2, such as Mission Critical, Database, and VDI, among others traditionally relying upon consolidated Storage Area Network (SAN) shared storage.

Compute resources that can use AES, including bare metal (BM) physical machines (PM), virtual machines (VM), and containers, among others, using iSCSI for access. AES is accessible by computing resources and services within the Azure Cloud in various regions (check Azure Website for specific region availability) and from on-prem core and edge locations using iSCSI. The AES management experience and value proposition are similar to traditional hardware or software-defined shared SAN storage combined with Azure cloud-based management capabilities.

Figure 1 General Concept and Use of Azure Elastic SAN (AES)

While Microsoft Azure describes AES as a cloud-native storage solution, that does not mean that AES is only for containers and other cloud-native apps or DevOPS. Rather, AES has been built for and is native to the cloud (e.g., software-defined) that can be accessed by various compute and other resources (e.g., VMs, Containers, AKS, etc) using iSCSI.

How Azure Elastic SAN differs from other Azure Storage

AES differs from traditional Azure block storage (e.g., Azure Disks) in that the storage is independent of the host compute server (e.g., BM, PM, VM, containers). With AES, similar to a conventional software-defined or hardware-based shared SAN solution, storage is disaggregated from host servers for sharing and management using iSCSI for connectivity. By comparison, AES differs from traditional Azure VM-based storage typically associated with a given virtual machine in a DAS (Direct Attached Storage) type configuration. Likewise, similar to conventional on-prem environments, there is a mix of DAS and SAN, including some host servers that leverage both.

AES supports Azure VM, Azure Kubernetes Service (AKS), cloud-native, edge, and on-prem computing (BM, VM, etc.) via iSCSI. Support for Azure VMware Solution (AVS) is in preview; check the Microsoft Azure website for updates and new feature functionality enhancements.

Does this mean everything is moving to AES? Similar to traditional SANs, there are roles and needs for various storage options, including DAS, shared block, file, and object, among storage offerings. Likewise, Microsoft and Azure have expanded their storage offerings to include AES, DAS (azure disks, including Ultra, premium, and standard, among other options), append, block, and page blobs (objects), and files, including Azure file sync, tables, and Data Box, among other storage services.

Azure Elastic Storage Feature Highlights

AES feature highlights include, among others:

- Management via Azure Portal and associated tools
- Azure cloud-based shared scalable bock storage
- Scalable capacity, low latency, and high performance (IOPs and throughput)
- Space capacity-optimized without the need for data reduction
- Accessible from within Azure cloud and from on-prem using iSCSI
- Supports Azure compute (VMs, Containers/AKS, Azure VMware Solution)
- On-prem access via iSCSI from PM/BM, VM, and containers
- Variable number of volumes and volume size per volume group
- Flexible easy to use Azure cloud-based management
- Encryption and network private endpoint security
- Local (LRS) and Zone (ZRS) with replication resiliency
- Volume snapshots and cluster support

Who is Azure Elastic SAN for

AES is for those who need cost-effective, shared, resilient, high capacity, high performance (IOPS, Bandwidth), and low latency block storage within Azure and from on-prem access. Others who can benefit from AES include those who need shared block storage for clustering app workloads, server and storage consolidation, and hybrid and migration. Another consideration is for those familiar with traditional hardware and software-defined SANs to facilitate hybrid and migration strategies.

How Azure Elastic SAN works

Azure Elastic SAN is a software-defined (cloud native if you prefer) block storage offering that presents a virtual SAN accessible within Azure Cloud and to on-prem core and edge locations currently via iSCSI. Using iSCSI, Azure VMs, Clusters, Containers, Azure VMware Solution among other compute and services, and on-prem BM/PM, VM, and containers, among others, can access AES storage volumes.

From the Azure Portal or associated tools (Azure CLI or PowerShell), create an AES SAN, giving it a 3 to 24-character name and specify storage capacity (base units with performance and any additional space capacity). Next, create a Volume Group, assigning it to a specific subscription and resource group (new or existing), then specify which Azure Region to use, type of redundancy (LRS or GRS), and Zone to use. LRS provides local redundancy, while ZRS provides enhanced zone resiliency, with highspeed synchronous resiliency without setting up multiple SAN systems and their associated replication configurations along with networking considerations (e.g., Azure takes care of that for you within their service).

The next step is to create volumes by specifying the volume name, volume group to use, volume size in GB, maximum IOPs, and bandwidth. Once you have made your AES volume group and volumes, you can create private endpoints, change security and access controls, and access the volumes from Azure or on-prem resources using iSCSI. Note that AES currently needs to be LRS (not ZRS) for clustered shared storage and that Key management includes using your keys with Azure key vault.

Using Azure Elastic SAN

Using AES is straightforward, and there are good easy to follow guides from Microsoft Azure, including the following:

- Azure Elastic SAN Introduction
- Azure Elastic SAN Configuration

The following images show what AES looks like from the Azure Portal, as well as from an Azure Windows Server VM and an onprem physical machine (e.g., Windows 10 laptop).

Figure 2 AES Azure Portal Big Picture

Figure 3 AES Volume Groups Portal View

Figure 4 AES Volumes Portal View

Figure 5 AES Volume Snapshot Views

Figure 6 AES Connected Volume Portal View

Figure 7 AES Volume iSCSI view from on-prem Windows Laptop

Figure 8 AES iSCSI Volume attached to Azure VM

Azure Elastic SAN Cost Pricing

The cost of AES is elastic, depending on whether you scale capacity with performance (e.g., base unit) or add more space capacity. If you need more performance, add base unit capacity, increasing IOPS, bandwidth, and space. In other words, base capacity includes storage space and performance, which you can grow in various increments. Remember that AES storage resources get shared across volumes within a volume group.

Azure Elastic SAN is billed hourly based on a monthly per-capacity base unit rate, with a minimum of 1TB provisioned capacity with minimum performance (e.g., 5,000 IOPs, 200MBps bandwidth). The base unit rate varies by region and type of redundancy, aka resiliency. For example, at the time of this writing, looking at US East, the Local Redundant Storage (LRS) base unit rate is 1TB with 5,000 IOPs and 200MBps bandwidth, costing $81.92 per unit per month.

The above example breaks down to a rate of $0.08 per GB per month, or $0.000110 per GB per hour (assumes 730 hours per month). An example of simply adding storage capacity without increasing base unit (e.g., performance) for US East is $61.44 per month. That works out to $0.06 per GB per month (no additional provisioned IOPs or Bandwidth) or $0.000083 per GB per hour.

Note that there are extra fees for Zone Redundant Storage (ZRS). Learn more about Azure Elastic SAN pricing here, as well as via a cost calculator here.

Azure Elastic SAN Performance

Performance for Azure Elastic SAN includes IOPs, Bandwidth, and Latency. AES IOPs get increased in increments of 5,000 per base TB. Thus, an AES with a base of 10TB would have 50,000 IOPs distributed (shared) across all of its volumes (e.g., volumes are not restricted). For example, if the base TB is increased from 10TB to 20TB, then the IOPs would increase from 50,000 to 100,000 IOPs.

On the other hand, if the base capacity (10TB) is not increased, only the storage capacity would increase from 10TB to 20TB, and the AES would have more capacity but still only have the 50,000 IOPs. AES bandwidth throughput increased by 200MBps per TB. For example, a 5TB AES would have 5 x 200MBps (1,000 MBps) throughput bandwidth shared across the volume groups volumes.

Note that while the performance gets shared across volumes, individual volume performance is determined by its capacity with a maximum of 80,000 IOPs and up to 1,024 MBps. Thus, to reach 80,000 IOPS and 1,024 MBps, an AES volume would have to be at least 107GB in space capacity. Also, note that the aggregate performance of all volumes cannot exceed the total of the AES. If you need more performance, then create another AES.

Will all VMs or compute resources see performance improvements with AES? Traditional Azure Disks associated with VMs have per-disk performance resource limits, including IOPs and Bandwidth. Likewise, VMs have storage limits based on their instance type and size, including the number of disks (HDD or SSD), performance (IOPS and bandwidth), and the number of CPUs and memory.

What this means is that an AES volume could have more performance than what a given VM is limited to. Refer to your VM instance sizing and configuration to determine its IOP and bandwidth limits; if needed, explore changing the size of your VM instance to leverage the performance of Azure Elastic SAN storage.

Additional Resources Where to learn more

The following links are additional resources to learn about Microsoft Azure Elastic SAN and related data infrastructures and tradecraft topics.

Azure AKS Storage Concepts
Azure Elastic SAN (AES) Documentation and Deployment Guides
Azure Elastic SAN Microsoft Blog
Azure Elastic SAN Overview
Azure Elastic SAN Performance topics
Azure Elastic SAN Pricing calculator
Azure Products by Region (see where AES is currently available)
Azure Storage Offerings
Azure Virtual Machine (VM) sizes
Azure Virtual Machine (VM) types
Azure Elastic SAN General Pricing
Azure Storage redundancy
Azure Service Level Agreements (SLA)
StorageIOBlog.com Data Box Family
StorageIOBlog.com Data Box Review
StorageIOBlog.com Data Box Test Drive
StorageIOblog.com Microsoft Hyper-V Alive Enhanced with Win Server 2025
StorageIOblog.com If NVMe is the answer, what are the questions?
StorageIOblog.com NVMe Primer (or refresh)

Additional learning experiences along with common questions (and answers), are found in my Software Defined Data Infrastructure Essentials book.

What this all means

Azure Elastic SAN (AES) is a new and now generally available shared block storage offering that is accessible using iSCSI from within Azure Cloud and on-prem environments. Even with iSCSI, AES is relatively easy to set up and use for shared storage, mainly if you are used to or currently working with hardware or software-defined SAN storage solutions.

With NVMe over TCP fabrics gaining industry and customer traction, I’m hoping for Microsoft to adding that in the future. Currently, AES supports LRS and ZRS for redundancy, and an excellent future enhancement would be to add Geo Redundant Storage (GRS) capabilities for those who need it.

I like the option of elastic shared storage regarding performance, availability, capacity, and economic costs (PACE). Suppose you understand the value proposition of evolving from dedicated DAS to shared SAN (independent of the underlying fabric network); or are currently using some form of on-prem shared block storage. In that case, you will find AES familiar and easy to use. Granted, AES is not a solution for everything as there are roles for other block storage, including DAS such as Azure disks and VMs within Azure, along with on-prem DAS, as well as file, object, and blobs, tables, among others.

Wrap up

The notion that all cloud storage must be objects or blobs is tied those who only need, provide, or prefer those solutions. The reality is that everything is not the same. Thus, there is a need for various storage mediums, devices, tiers, access, and types of services. Microsoft and Azure have done an excellent job of providing. I like what Microsoft Azure is doing with Azure Elastic SAN.

Ok, nuff said, for now.

Cheers Gs

Greg Schulz – Nine time Microsoft MVP Cloud and Data Center Management, VMware vExpert 2010-2018. 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 UnlimitedIO LLC.

August 27, 2017November 26, 2023

August 2017 Server StorageIO Data Infrastructure Update Newsletter

Server StorageIO August 2017 Data Infrastructure Update Newsletter

Volume 17, Issue VII (Pre VMworld 2017)

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

Its end of summer season here in north america which means wrapping up holidays, vacations, back to school shopping (and going to school), as well as the start of the fall IT technology conference season. VMworld 2017 USA is this week in Las Vegas and there will be several announcements coming out of that event. Given all of the activity so far this month, I’m going to cover the VMworld and related topics in a special early September issue of this newsletter.

Speaking of VMworld 2017, if you are going to be there in Las Vegas, stop by the book store located in the community village area on Tuesday at 1PM I will be doing a book signing, meet and greet, stop by and say hello.

Thanks to all who participated in the recent thevPad top 100 vBloggers event, I am honored to have StorageIOblog listed in the top 100 vBlogs. Also congratulations to new and returning fellow Microsoft MVPs and VMware vExperts. There is a lot going on in the industry, lets get to it in this Server StorageIO Data Infrastructure Update Newsletter.

Various Events and Webinars
Industry Resources and Links
Connect and Converse With Us
About Us

Enjoy this edition of the Server StorageIO update newsletter (pre VMworld edition).

Cheers GS

Data Infrastructure and IT Industry Activity Trends

Acronis announced True Image 2018 for home based data protection (backup), while Crashplan aka code42 announced they were getting out of the consumer, small office home office (SOHO) backup and data protection space to focus on the enterprise.

Cisco bought software defined storage converged infrastructure software vendor Springpath for about $320M USD. Cisco and Swiftstack (object storage software) also announced interoperability news with the UCS S32600 storage server platform.

GPU vendor NVIDIA announced Quadro Virtual Data Center workstation technology.

Meanwhile ioFABRIC announced their new Vicinity 3.0 software defined management solution.

Microsemi (remember PMC Sierra) announced release of its Flashtec PCIe controllers to help speed adoption deployment of SSDs including NVMe based.

Microsoft bought Cycle Computing to enhance Azure services, while also making Azure Blob storage tiering available as part of an ongoing public preview. For those not aware, Azure Blob is similar to what other services call objects. Get in on the public preview here. For those who live in a hybrid world where your environment and experience include both Windows and Linux, check out Windows Services for Linux here. With this service which can install onto an Windows 10 system along side Win32 (e.g. it co-exists, its not a virtual machine), you can choose from the Windows Store which Linux distro you want (e.g. Centos, Ubuntu, etc).

Need to learn, refresh or simply gain a better understanding of Microsoft PowerShell for software defined management of Windows, Azure and other environments? Check out this great post from Microsoft Blogs.

For those who work in a Windows or Azure environment, here are some useful icons for Powerpoint, Visio, PNG and SVG from Microsoft. With Microsoft Ignite coming up in September, watch for some interesting update enhancements to Windows Server from a server storage I/O perspective.

NextPlatform.com has an interesting article on Exascale Timeline for Storage and I/O systems worth a read. Panzura global name space and scale out software defined storage management software announced mobile client file sharing. After dropping their own cloud business, Verizon is now a virtual network services partner with Amazon.

Over at all flash array (AFA) SSD vendor Pure, revenues are growing closer to an annual $1B USD rate despite loss per share, Pure also announced a change in leadership with current CEO Scott Dietzen stepping aside for Charles Giancarlo to take the lead spot.

VMware has been talking about the continued increase in customer adoption and deployment of VSAN now they are showing they eat their own dog food. Check out this post here from VMware that shows how many and what size VSAN clusters they are using for various internal operations. Also on the VMware storage front, learn more about enhancements for large and small file allocation blocks with vSphere VMFS6.

With all of the pre and post VMworld related announcements, remember to check out the tools available over at the VMware flings site including vSphere HTML5 Web Client, HCIBench, vRealize Operations Export, VisualEsxtop, ESXi Embedded Host Client, VMware OS Optimization Tool and many others. Watch for VMworld coverage in the September newsletter along with posts at www.storageioblog.com

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

Server StorageIO Commentary in the news

Recent Server StorageIO industry trends perspectives commentary in the news.

Via EnterpriseStorageForum: Comments on Who Will Rule the Storage World?
Via InfoGoto: Comments on Google Cloud Platform Gaining Data Storage Momentum
Via InfoGoto: Comments on Singapore High Rise Data Centers
Via InfoGoto: Comments on New Tape Storage Capacity

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

Server StorageIOblog Posts

Recent and popular Server StorageIOblog posts include:

NVMe Wont Replace Flash By Itself They Complement Each Other
There has been some recent industry marketing buzz generated by a startup to get some attention by claiming via a study sponsored by including the startup that Non-Volatile Memory (NVM) Express (NVMe) will replace flash storage. Granted, many IT customers as well as vendors are still confused by NVMe thinking it is a storage medium as opposed to an interface used for accessing fast storage devices such as nand flash among other solid state devices (SSDs). Part of that confusion can be tied to common SSD based devices rely on NVM that are persistent memory retaining data when powered off (unlike the memory in your computer).

Like IT Data Centers Do You Take Trade Show Exhibit Infrastructure For Granted?
Think about this for a moment; do you assume that Information Technology (IT) and Cloud based data centers along with their associated Data Infrastructure supporting various applications will be accessible when needed. Likewise, when you go to a trade show, conference, symposium, user group or another conclave is it assumed that the trade show, exposition (expo), exhibits, booths, stands or demo areas will be ready, waiting and accessible? In case you did not hear, things heated up at the recent Flash Memory Summit (FMS) in Santa Clara where a small fire in one of the exhibt booths prevented the expo hall from opening during the event.

Microsoft Azure Software Defined Data Infrastructure Reference Resources
Need to learn more about Microsoft Azure Cloud Software Defined Data Infrastructure topics including reference architecture among other resources for various application workloads? Microsoft Azure has an architecture and resources page (here) that includes various application workload reference tools.

Chelsio Storage over IP and other Networks Enable Data Infrastructures
Chelsio and Storage over IP (SoIP) continue to enable Data Infrastructures from legacy to software defined virtual, container, cloud as well as converged.

Announcing Software Defined Data Infrastructure Essentials Book by Greg Schulz
Software Defined Data Infrastructure (SDDI) Essentials is now generally available at various global venues in hardcopy, hardback print as well as various electronic versions including via Amazon and CRC Press among others.

Server StorageIO Industry Trends Perspectives Report WekaIO Matrix
Like Data They Protect For Now Quantum Revenues Continue To Grow
Travel Fun Crossword Puzzle For VMworld 2017 Las Vegas
Hot Popular New Trending Data Infrastructure Vendors To Watch

Server StorageIO Data Infrastructure Tips and Articles

Recent Server StorageIO industry trends perspectives commentary in the news.

Via NetworkWorld: Do you have an IT trade craft skills gap?

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

Events and Activities

Recent and upcoming event activities.

Sep. 21, 2017 – MSP CMG – Minneapolis MN
Sep. 20, 2017 – Redmond Data Protection and Backup – Webinar
Sep. 14, 2017 – Fujifilm IT Executive Summit – Seattle WA
Sep. 12, 2017 – SNIA Software Developers Conference (SDC) – Santa Clara CA
Sep. 7, 2017 – WiPro – Planning Your Software Defined Journey – New York City
August 29, 2017 – VMworld – Las Vegas

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

Server StorageIO Industry Resources and Links

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

Ok, nuff said, for now.

Cheers
Gs

Greg Schulz – Multi-year Microsoft MVP Cloud and Data Center Management, VMware vExpert (and vSAN). 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.

June 14, 2017March 25, 2022

AWS S3 Storage Gateway Revisited (Part I)

server storage I/O trends

AWS S3 Storage Gateway Revisited (Part I)

This Amazon Web Service (AWS) Storage Gateway Revisited posts is a follow-up to the AWS Storage Gateway test drive and review I did a few years ago (thus why it’s called revisited). As part of a two-part series, the first post looks at what AWS Storage Gateway is, how it has improved since my last review of AWS Storage Gateway along with deployment options. The second post in the series looks at a sample test drive deployment and use.

If you need an AWS primer and overview of various services such as Elastic Cloud Compute (EC2), Elastic Block Storage (EBS), Elastic File Service (EFS), Simple Storage Service (S3), Availability Zones (AZ), Regions and other items check this multi-part series (Cloud conversations: AWS EBS, Glacier and S3 overview (Part I) ).

As a quick refresher, S3 is the AWS bulk, high-capacity unstructured and object storage service along with its companion deep cold (e.g. inactive) Glacier. There are various S3 storage service classes including standard, reduced redundancy storage (RRS) along with infrequent access (IA) that have different availability durability, performance, service level and cost attributes.

Note that S3 IA is not Glacier as your data always remains on-line accessible while Glacier data can be off-line. AWS S3 can be accessed via its API, as well as via HTTP rest calls, AWS tools along with those from third-party’s. Third party tools include NAS file access such as S3FS for Linux that I use for my Ubuntu systems to mount S3 buckets and use similar to other mount points. Other tools include Cloudberry, S3 Motion, S3 Browser as well as plug-ins available in most data protection (backup, snapshot, archive) software tools and storage systems today.

AWS S3 Storage Gateway and What’s New

The Storage Gateway is the AWS tool that you can use for accessing S3 buckets and objects via your block volume, NAS file or tape based applications. The Storage Gateway is intended to give S3 bucket and object access to on-premises applications and data infrastructures functions including data protection (backup/restore, business continuance (BC), business resiliency (BR), disaster recovery (DR) and archiving), along with storage tiering to cloud.

Some of the things that have evolved with the S3 Storage Gateway include:

Easier, streamlined download, installation, deployment
Enhanced Virtual Tape Library (VTL) and Virtual Tape support
File serving and sharing (not to be confused with Elastic File Services (EFS))
Ability to define your own bucket and associated parameters
Bucket options including Infrequent Access (IA) or standard
Options for AWS EC2 hosted, or on-premises VMware as well as Hyper-V gateways (file only supports VMware and EC2)

AWS Storage Gateway Three Functions

AWS Storage Gateway can be deployed for three basic functions:

AWS Storage Gateway File Architecture via AWS.com

File Gateway (NFS NAS) – Files, folders, objects and other items are stored in AWS S3 with a local cache for low latency access to most recently used data. With this option, you can create folders and subdirectory similar to a regular file system or NAS device as well as configure various security, permissions, access control policies. Data is stored in S3 buckets that you specify policies such as standard or Infrequent Access (IA) among other options. AWS hosted via EC2 as well as VMware Virtual Machine (VM) for on-premises file gateway.
Also, note that AWS cautions on multiple concurrent writers to S3 buckets with Storage Gateway so check the AWS FAQs which may have changed by the time you read this. Current file share limits (subject to change) include 1 file gateway share per S3 bucket (e.g. a one to one mapping between file share and a bucket). There can be 10 file shares per gateway (e.g. multiple shares each with its own bucket per gateway) and a maximum file size of 5TB (same as maximum S3 object size). Note that you might hear about object storage systems supporting unlimited size objects which some may do, however generally there are some constraints either on their API front-end, or what is currently tested. View current AWS Storage Gateway resource and specification limits here.

AWS Storage Gateway Non-Cached Volume Architecture via AWS.com

AWS Storage Gateway Cached Volume Architecture via AWS.com

Volume Gateway (Block iSCSI) – Leverages S3 with a point in time backup as an AWS EBS snapshot. Two options exist including Cached volumes with low-latency access to most recently used data (e.g. data is stored in AWS, with a local cache copy on disk or SSD). The other option is Stored Volumes (e.g. non-cached) where primary copy is local and periodic snapshot backups are sent to AWS. AWS provides EC2 hosted, as well as VMs for VMware and various Hyper-V Windows Server based VMs.
Current Storage Gateway volume limits (subject to change) include maximum size of a cached volume 32TB, maximum size of a stored volume 16TB. Note that snapshots of cached volumes larger than 16TB can only be restored to a storage gateway volume, they can not be restored as an EBS volume (via EC2). There are a maximum of 32 volumes for a gateway with total size of all volumes for a gateway (cached) of 1,024TB (e.g. 1PB). The total size of all volumes for a gateway (stored volume) is 512TB. View current AWS Storage Gateway resource and specification limits here.

AWS Storage Gateway VTL Architecture via AWS.com

Virtual Tape Library Gateway (VTL) – Supports saving your data for backup/BC/DR/archiving into S3 and Glacier storage tiers. Being a Virtual Tape Library (e.g. VTL) you can specify emulation of tapes for compatibility with your existing backup, archiving and data protection software, management tools and processes.
Storage Gateway limits for tape include minimum size of a virtual tape 100GB, maximum size of a virtual tape 2.5TB, maximum number of virtual tapes for a VTL is 1,500 and total size of all tapes in a VTL is 1PB. Note that the maximum number of virtual tapes in an archive is unlimited and total size of all tapes in an archive is also unlimited. View current AWS Storage Gateway resource and specification limits here.

Where To Learn More

AWS S3 Storage Gateway Revisited (Part I)
Part II Revisiting AWS S3 Storage Gateway (Test Drive Deployment)
AWS Storage Gateway site
AWS Storage Gateway resource limits and specifications and Pricing
AWS Storage Gateway Concepts, Getting Started, Managing Volumes, Troubleshooting and Local Console
Cross-Region Replication for Amazon S3
AWS (Amazon) storage gateway, first, second and third impressions
Cloud conversations: If focused on cost you might miss other cloud storage benefits
Data Protection Diaries
Cloud Conversations: AWS overview and primer
Eight Ways to Avoid Cloud Storage Pricing Surprises
Cloud and Object Storage Center
Are more than five nines of availability really possible?
How do primary storage clouds and cloud for backup differ?
What’s most important to know about my cloud privacy policy?
Cloud Conversations: AWS S3 Cross Region Replication storage enhancements
S3motion Buckets Containers Objects AWS S3 Cloud and EMCcode
AWS EFS Elastic File System (Cloud NAS) First Preview Look

What This All Means

As to which gateway function and mode (cached or non-cached for Volumes) depends on what it is that you are trying to do. Likewise choosing between EC2 (cloud hosted) or on-premises Hyper-V and VMware VMs depends on what your data infrastructure support requirements are. Overall I like the progress that AWS has put into evolving the Storage Gateway, granted it might not be applicable for all usage cases. Continue reading more and view images from the AWS Storage Gateway Revisited test drive in part two located here.

Ok, nuff said (for now…).

Cheers
Gs

April 11, 2017March 25, 2022

Cisco Next Gen 32Gb Fibre Channel NVMe SAN Updates

server storage I/O trends

Cisco Next Gen 32Gb Fibre Channel and NVMe SAN Updates

Cisco announced today next generation MDS storage area networking (SAN) Fibre Channel (FC) switches with 32Gb, along with NVMe over FC support.

Cisco Fibre Channel (FC) Directors (Left) and Switches (Right)

Highlights of the Cisco announcement include:

MDS 9700 48 port 32Gbps FC switching module
High density 768 port 32Gbps FC directors
NVMe over FC for attaching fast flash SSD devices (current MDS 9700, 9396S, 9250i and 9148S)
Integrated analytics engine for management insight awareness
Multiple concurrent protocols including NVMe, SCSI (e.g. SCSI_FCP aka FCP) and FCoE

Where to Learn More

The following are additional resources to learn more.

Cisco Storage Networking landing page
More on Fibre Channel over Ethernet (FCoE)
If Answer is NVMe, what are questions?
Despite being declared dead, Fibre Channel continues to evolve with FC-BB-6
Is FCoE Struggling to Gain Traction, or on a normal adoption course?
The NVMe place (www.thenvmeplace.com.) and The SSD Place (www.thessdplace.com)
Server StorageIO CI and HCI micro site landing page www.storageio.com/converge

What this all means, wrap up and summary

Fibre Channel remains relevant for many environments and it makes sense that Cisco known for Ethernet along with IP networking enhance their offerings. By having 32Gb Fibre Channel, along with adding NVMe over Fabric provides existing (and new) Cisco customers to support their legacy (e.g. FC) and emerging (NVMe) workloads as well as devices. For those environments that still need some mix of Fibre Channel, as well as NVMe over fabric this is a good announcement. Keep an eye and ear open for which storage vendors jump on the NVMe over Fabric bandwagon now that Cisco as well as Brocade have made switch support announcements.

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).

September 21, 2014March 7, 2022

CompTIA needs input for their Storage+ certification, can you help?

The CompTIA folks are looking for some comments and feedback from those who are involved with data storage in various ways as part of planning for their upcoming enhancements to the Storage+ certification testing.

As a point of disclosure, I am member of the CompTIA Storage+ certification advisory committee (CAC), however I don’t get paid or receive any other type of renumeration for contributing my time to give them feedback and guidance other than a thank, Atta boy for giving back and playing it forward to help others in the IT community similar to what my predecessors did.

I have been asked to pass this along to others (e.g. you or who ever forwards it on to you).

Please take a few moments and feel free to share with others this link here to the survey for CompTIA Storage+.

What they are looking for is to validate the exam blueprint generated from a recent Job Task Analysis (JTA) process.

In other words, does the certification exam show real-world relevance to what you and your associates may be doing involved with data storage.

This is opposed to being aligned with those whose’s job it is to create test questions and may not understand what it is you the IT pro involved with storage does or does not do.

If you have ever taken a certification exam test and scratched your head or wondered out why some questions that seem to lack real-world relevance were included, vs. ones of practical on-the-job experience were missing, here’s your chance to give feedback.

Note that you will not be rewarded with an Amex or Amazon gift card, Starbucks or Dunkin Donuts certificates, free software download or some other incentive to play and win, however if you take the survey let me know and will be sure to tweet you an Atta boy or Atta girl! However they are giving away a free T-Shirt to every 10 survey takers.

Btw, if you really need something for free, send me a note (I’m not that difficult to find) as I have some free copies of Resilient Storage Networking (RSN): Designing Flexible Scalable Data Infrastructures (Elsevier) you simply pay shopping and handling. RSN can be used to help prepare you for various storage testing as well as other day-to-day activities.

CompTIA is looking for survey takers who have some hands-on experience or involved with data storage (e.g. can you spell SAN, NAS, Disk or SSD and work with them hands-on then you are a candidate ;).

Welcome to the CompTIA Storage+ Certification Job Task Analysis (JTA) Survey

Your input will help CompTIA evaluate which test objectives are most important to include in the CompTIA Storage+ Certification Exam

Your responses are completely confidential.

The results will only be viewed in the aggregate.

Here is what (and whom) CompTIA is looking for feedback from:

Has at least 12 to 18 months of experience with storage-related technologies.

Makes recommendations and decisions regarding storage configuration.

Facilitates data security and data integrity.

Supports a multiplatform and multiprotocol storage environment with little assistance.

Has basic knowledge of cloud technologies and object storage concepts.

As a small token of CompTIA appreciation for your participation, they will provide an official CompTIA T-shirt to every tenth (1 of every 10) person who completes this survey. Go here for official rules.

Click here to complete the CompTIA Storage+ survey

Contact CompTIA with any survey issues, research@comptia.org

What say you, take a few minutes like I did and give some feedback, you will not be on the hook for anything, and if you do get spammed by the CompTIA folks, let me know and I in turn will spam them back for spamming you as well as me.

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

August 24, 2014March 8, 2022

VMware VVOLs storage I/O fundementals (Part 1)

VMware VVOL’s storage I/O fundamentals (Part I)

Note that this is a three part series with the first piece here (e.g. Are VMware VVOL’s in your virtual server and storage I/O future?), the second piece here (e.g.VMware VVOL’s and storage I/O fundamentals Part 1) and the third piece here (e.g. VMware VVOL’s and storage I/O fundamentals Part 2).

Some of you may already be participating in the VMware beta of VVOL involving one of the initial storage vendors also in the beta program.

Ok, now let’s go a bit deeper, however if you want some good music to listen to while reading this, check out @BruceRave GoDeepMusic.Net and shows here.

Taking a step back, digging deeper into Storage I/O and VVOL’s fundamentals

Instead of a VM host accessing its virtual disk (aka VMDK) which is stored in a VMFS formatted data store (part of ESXi hypervisor) built on top of a SCSI LUN (e.g. SAS, SATA, iSCSI, Fibre Channel aka FC, FCoE aka FC over Ethernet, IBA/SRP, etc) or an NFS file system presented by a storage system (or appliance), VVOL’s push more functionality and visibility down into the storage system. VVOL’s shift more intelligence and work from the hypervisor down into the storage system. Instead of a storage system simply presenting a SCSI LUN or NFS mount point and having limited (coarse) to no visibility into how the underlying storage bits, bytes as well as blocks are being used, storage systems gain more awareness.

Keep in mind that even files and objects still get ultimately mapped to pages and blocks aka sectors even on nand flash-based SSD’s. However also keep an eye on some new technology such as the Seagate Kinetic drive that instead of responding to SCSI block based commands, leverage object API’s and associated software on servers. Read more about these emerging trends here and here at objectstoragecenter.com.

With a normal SCSI LUN the underlying storage system has no knowledge of how the upper level operating system, hypervisor, file system or application such as a database (doing raw IO) is allocating the pages or blocks of memory aka storage. It is up to the upper level storage and data management tools to map from objects and files to the corresponding extents, pages and logical block address (LBA) understood by the storage system. In the case of a NAS solution, there is a layer of abstractions placed over the underlying block storage handling file management and the associated file to LBA mapping activity.

Storage I/O basics
Storage I/O and IOP basics and addressing: LBA’s and LBN’s

Getting back to VVOL, instead of simply presenting a LUN which is essentially a linear range of LBA’s (think of a big table or array) that the hypervisor then manages data placement and access, the storage system now gains insight into what LBA’s correspond to various entities such as a VMDK or VMX, log, clone, swap or other VMware objects. With this more insight, storage systems can now do native and more granular functions such as clone, replication, snapshot among others as opposed to simply working on a coarse LUN basis. The similar concepts extend over to NAS NFS based access. Granted, there are more to VVOL’s including ability to get the underlying storage system more closely integrated with the virtual machine, hypervisor and associated management including supported service manage and classes or categories of service across performance, availability, capacity, economics.

What about VVOL, VAAI and VASA?

VVOL’s are building from earlier VMware initiatives including VAAI and VASA. With VAAI, VMware hypervisor’s can off-load common functions to storage systems that support features such as copy, clone, zero copy among others like how a computer can off-load graphics processing to a graphics card if present.

VASA however provides a means for visibility, insight and awareness between the hypervisor and its associated management (e.g. vCenter etc) as well as the storage system. This includes storage systems being able to communicate and publish to VMware its capabilities for storage space capacity, availability, performance and configuration among other things.

With VVOL’s VASA gets leveraged for unidirectional (e.g. two-way) communication where VMware hypervisor and management tools can tell the storage system of things, configuration, activities to do among others. Hence why VASA is important to have in your VMware CASA.

What’s this object storage stuff?

VVOL’s are a form of object storage access in that they differ from traditional block (LUN’s) and files (NAS volumes/mount points). However, keep in mind that not all object storage are the same as there are object storage access and architectures.

Object Storage basics, generalities and block file relationships

Avoid making the mistake of when you hear object storage that means ANSI T10 (the folks that manage the SCSI command specifications) Object Storage Device (OSD) or something else. There are many different types of underlying object storage architectures some with block and file as well as object access front ends. Likewise there are many different types of object access that sit on top of object architectures as well as traditional storage system.

Object storage I/O
An example of how some object storage gets accessed (not VMware specific)

Also keep in mind that there are many different types of object access mechanism including HTTP Rest based, S3 (e.g. a common industry defacto standard based on Amazon Simple Storage Service), SNIA CDMI, SOAP, Torrent, XAM, JSON, XML, DICOM, IL7 just to name a few, not to mention various programmatic bindings or application specific implementations and API’s. Read more about object storage architectures, access and related topics, themes and trends at www.objecstoragecenter.com

Lets take a break here and when you are ready, click here to read the third piece in this series VMware VVOL’s and storage I/O fundamentals Part 2.

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

August 24, 2014March 7, 2022

Despite being declared dead, Fibre Channel continues to evolve with FC-BB-6

Like many technologies that have been around for more than a decade or two, they often get declared dead when something new appears and Fibre Channel (FC) for networking with your servers and storage falls into that category. It seems like just yesterday when iSCSI was appearing on the storage networking scene in the early 2000s that FC was declared dead yet it remains and continues to evolve including moving over Ethernet with FC over Ethernet (FCoE).

Recently the Fibre Channel Industry Association (FCIA) made an announcement on the continued development and enhancements including FC-BB-6 that applies to both "classic" or "legacy" FC as well as the newer and emerging FCoE implementations. FCIA is not alone in the FCIA activity as they are as the name implies the industry consortium that works with the T11 standards folks. T11 is a Technical Committee of the International Committee on Information Technology Standards (INCITS, pronounced "insights").

Keep in mind that a couple of pieces to Fibre Channel which are the upper levels and lower level transports.

With FCoE, the upper level portions get mapped natively on Ethernet without having to map on top of IP as happens with distance extension using FCIP.

Likewise FCoE is more than simply mapping one of the FC upper level protocols (ULPs) such as the SCSI command set (aka SCSI_FCP) on IP (e.g. iSCSI). Think of ULPs almost in a way as a guest that gets transported or carried across the network, however lets also be careful not to play the software defined network (SDN) or virtual network, network virtualization or IO virtualization (IOV) card, or at least yet, we will leave that up to some creative marketers ;).

At the heart of the Fibre Channel beyond the cable and encoding scheme are a set of protocols, command sets and one in particular is FC Backbone now in its 6th version (read more here at the T11 site, or here at the SNIA site).

Some of the highlights of the FCIA announcement include:

VN2VN connectivity support enabling direct point to point virtual links (not to be confused with point to point physical cabling) between nodes in an FCoE network simplifying configurations for smaller SAN networks where zoning might not be needed (e.g. remove complexity and cost).

Support for Domain ID scalability including more efficient use by FCoE fabrics enabling large scalability of converged SANs. Also keep an eye on the emerging T11 FC-SW-6 distributed switch architecture for implementation over Ethernet in final stages of development.

Here are my perspectives on this announcement by the FCIA:

"Fibre Channel is a proven protocol for networked data center storage that just got better," said Greg Schulz, founder StorageIO. "The FC-BB-6 standard helps to unlock the full potential of the Fibre Channel protocol that can be implemented on traditional Fibre Channel as well as via Ethernet based networks. This means FC-BB-6 enabled Fibre Channel protocol based networks give flexibility, scalability and secure high-performance resilient storage networks to be implemented."

Both "classic" or "legacy" Fibre Channel based cabling and networking are still alive with a road map that you can view here.

However FCoE also continues to mature and evolve and in some ways, FC-BB-6 and its associated technologies and capabilities can be seen as the bridge between the past and the future. Thus while the role of both FC and FCoE along with other ways of of networking with your servers and storage continue to evolve, so to does the technology. Also keep in mind that not everything is the same in the data center or information factory which is why we have different types of server, storage and I/O networks to address different needs, requirements and preferences.

Additional reading and viewing on FC, FCoE and storage networking::

Where has the FCoE hype and FUD gone? (with poll)

More storage and IO metrics that matter

Why FC and FCoE vendors get beat up over bandwidth?

Is FCoE Struggling to Gain Traction, or on a normal adoption course?

Has FCoE entered the trough of disillusionment?

More on Fibre Channel over Ethernet (FCoE) which points to this PDF

Will 6Gb SAS kill Fibre Channel?

From bits to bytes: Decoding Encoding

How many IOPS can a HDD, HHDD or SSD do?

Can we get a side of context with them IOPS and other storage metrics?

Server Storage I/O Network Benchmark Winter Olympic Games

Is FCoE Struggling to Gain Traction, or on a normal adoption course?

SAN, LAN, MAN, WAN, POTS and PANs – Network servers and storage beyond the cable (BrightTalk webinar)

Networking With Your Servers and Storage: Cloud, Virtual and Physical Environments (BrightTalk webinar)

Cloud and Virtual Storage Networking (CRC Press), Resilient Storage Networks (Elsevier)

Also check out these tips and articles, industry trends perspectives commentary in the news along with past and upcoming event activities.

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

August 27, 2013November 6, 2022

VMworld 2013 Vmware, server, storage I/O and networking update (Day 1)

Storage I/O trends

Congratulations to VMware on 10 years of VMworld!

With the largest installment yet of a VMworld in terms of attendance, there were also many announcements today (e.g. Monday) and many more slated for out the week. Here are a synopsis of some of those announcements.

Software Defined Data Center (SDDC) and Software Defined Networks (SDN)

VMware made a series of announcements today that set the stage for many others. Not surprisingly, these involved SDDC, SDN, SDS, vSphere 5.5 and other management tool enhancements, or the other SDM (Software Defined Management).

Here is a synopsis of what was announced by VMware.

VMware NSX (SDN) combines Nicira NVPTM along with vCloud Network and Security
VMware Virtual SAN (VSAN) not to be confused with virtual storage appliances (VSAs)
VMware vCloud Suite 5.5
VMware vSphere 5.5 (includes support for new Intel Xeon and Atom processors)
VMware vSphere App HA
VMware vSphere Flash Read Cache software
VMware vSphere Big Data Extensions
VMware vCloud Automation Center
VMware vCloud

Note that while these were announced today, some will be in public beta soon and general availability over the next few months or quarters (learn more here including pricing and availability). More on these and other enhancements in future posts. However for now check out what Duncan Epping (@DuncanYB) of VMware has to say over at his Yellowbook site here, here and here.

Buzzword Bingo

Additional VMworld Software Defined Announcements

Dell did some announcements as well for cloud and virtual environments in support of VMware from networking to servers, hardware and software. With all the recent acquisitions by Dell including Quest where they picked up Foglight management tools, along with vRanger, Bakbone and others, Dell has amassed an interesting portfolio. On the hardware front, check out the VRTX shared server infrastructure, I want one for my VMware environment, now I just need to justify one (to myself). Speaking of Dell, if you are at VMworld on Tuesday August 27 around 1:30PM stop by the Dell booth where I will be presenting including announcing some new things (stay tuned for more on that soon).

HP had some announcements today. HP jumped into the SDDC and SDN with some Software Defined Marketing (SDM) and Software Defined Announcements (SDA) in addition to using the Unified Data Center theme. Today’s announcements by HP were focused more around SDN and VMware NSX along with the HP Virtual Application Networks SDN Controller and VMware networking.

NetApp (Both #1417) announced more integration between their Data ONTAP based solutions and VMware vSphere, Horizon Suite, vCenter, vCloud Automation Center and vCenter Log Insight under the them theme of SDDC and SDS. As part of the enhancement, NetApp announced Virtual Storage Console (VSC 5.0) for end-to-end storage management and software in VMware environments. In addition, integration with VMware vCenter Server 5.5. Not to be left out of the SSD flash dash NetApp also released a new V1.2 of their FlashAccel software for vSphere 5.0 and 5.1.

Storage I/O trends

Cloud, Virtualization and DCIM

Here is one that you probably have not seen or heard much about elsewhere, which is Nlyte announcement of their V1.5 Virtualization Connector for Data Center Infrastructure Management (DCIM). Keep in mind that DCIM is more than facilities, power, and cooling related themes, particular in virtual data centers. Thus, some of the DCIM vendors, as well as others are moving into the converged DCIM space that spans server, storage, networking, hardware, software and facilities topics.

Interested in or want to know more about DCIM, and then check out these items:
Data Center Infrastructure Management (DCIM) and Infrastructure Resource Management (IRM)
Data Center Tools Can Streamline Computing Resources
Considerations for Asset Tracking and DCIM

Data Protection including Backup/Restore, BC, DR and Archiving

Quantum announced that Commvault has added support to use the Lattus object storage based solution as an archive target platform. You can learn more about object storage (access and architectures) here at www.objectstoragecenter.com .

PHD Virtual did a couple of data protection (backup/restore , BC, DR ) related announcements (here and here ). Speaking of backup/restore and data protection, if you are at VMworld on Tuesday August 27th around 1:30PM, stop by the Dell booth where I will be presenting, and stay tuned for more info on some things we are going to announce at that time.

In case you missed it, Imation who bought Nexsan earlier this year last week announced their new unified NST6000 series of storage systems. The NST6000 storage solutions support Fibre Channel (FC) and iSCSI for block along with NFS, CIFS/SMB and FTP for file access from virtual and physical servers.

Emulex announced some new 16Gb Fibre Channel (e.g. 16GFC) aka what Brocade wants you to refer to as Gen 5 converged and multi-port adapters. I wonder how many still remember or would rather forget how many ASIC and adapter gens from various vendors occurred just at 1Gb Fibre Channel?

Storage I/O trends

Caching and flash SSD

Proximal announced V2.0 of AutoCache 2.0 with role based administration, multi-hypervisor support (a growing trend beyond just a VMware focus) and more vCenter/vSphere integration. This is on the heels of last week’s FusionIO powered IBM Flash Cache Storage Accelerator (FCSA ) announcement, along with others such as EMC , Infinio, Intel, NetApp, Pernix, SanDisk (Flashsoft) to name a few.

Mellanox (VMworld booth #2005), you know, the Infinaband folks who also have some Ethernet (which also includes Fibre Channel over Ethernet) technology did a series of announcements today with various PCIe nand flash SSD card vendors. The common theme with the various vendors including Micron (Booth #1635) and LSI is in support of VMware virtual servers using iSER or iSCSI over RDMA (Remote Direct Memory Access). RDMA or server to server direct memory access (what some of you might know as remote memory mapped IO or channel to channel C2C) enables very fast low server to server data movement such as in a VMware cluster. Check out Mellanox and their 40Gb Ethernet along with Infinaband among other solutions if you are into server, storage i/o and general networking, along with their partners. Need or want to learn more about networking with your servers and storage check out Cloud and Virtual Data Storage Networking and Resilient Storage Networking .

Rest assured there are many more announcements and updates to come this week, and in the weeks to follow…

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

August 24, 2013January 23, 2019

Care to help Coraid with a Storage I/O Content Conversation?

Storage I/O trends

Blog post – Can you help Coraid with a Storage I/O Content Conversation?

Over the past week or so have had many email conversations with the Coraid marketing/public relations (PR) folks who want to share some of their content unique or custom content with you.

Normally I (aka @StorageIO) does not accept unsolicited (placed) content (particular for product pitch/placements) from vendors or their VARs, PR, surrogates including third or fourth party placement firms. Granted StorageIOblog.com does have site sponsors , per our policies that is all that those are, advertisements with no more or less influence than for others. StorageIO does do commissioned or sponsored custom content including white papers, solution briefs among other things with applicable disclosures, retention of editorial tone and control.

Who is Coraid and what do they do?

However wanting to experiment with things, not to mention given Coraids persistence, let’s try something to see how it works.

Coraid for those who are not aware provides an alternative storage and I/O networking solution called ATA over Ethernet or AoE (here is a link to Coraids Analyst supplied content page). AoE enables servers with applicable software to use storage equipped with AoE technology (or via an applicable equipped appliance) to use Ethernet as an interconnect and transport. AoE is on the low-end an alternative to USB, Thunderbolt or direct attached SATA or SAS, along with switched or shared SAS (keep in mind SATA can plug into SAS, not vice versa).

In addition AoE is an alternative to the industry standard iSCSI (SCSI command set mapped onto IP) which can be found in various solutions including as a software stack. Another area where AoE is positioned by Coraid is as an alternative to Fibre Channel SCSI_FCP (FCP) and Fibre Channel over Ethernet (FCoE). Keep in mind that Coraid AoE is block based (granted they have other solutions) as opposed to NAS (file) such as NFS, CIFS/SMB/SAMBA, pNFS or HDFS among others and is using native Ethernet as opposed to being layered on top of iSCSI.

Storage I/O trends

So here is the experiment

Since Coraid wanted to get their unique content placed either by them or via others, lets see what happens in the comments section here at StorageIOblog.com. The warning of course is keep it respectful, courteous and no bashing or disparaging comments about others (vendors, products, technology).

Thus the experiment is simple, lets see how the conversation evolves into the caveats, benefits, tradeoffs and experiences of those who have used or looked into the solution (pro or con) and why a particular opinion. If you have a perspective or opinion, no worries, however put it in context including if you are a Coraid employee, var, reseller, surrogate and likewise for those with other view (state who you are, your affiliation and other disclosure). Likewise if providing or supplying links to any content (white papers, videos, webinars) including via third-party provide applicable disclosures (e.g. it was sponsored and by whom etc.).

Disclosure

While I have mentioned or provided perspectives about them via different venues (online, print and in person) in the past, Coraid has never been a StorageIO client. Likewise this is not an endorsement for or against Coraid and their AoE or other solutions, simply an industry trends perspective.

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)

August 12, 2013November 26, 2023

Viking SATADIMM: Nand flash SATA SSD in DDR3 DIMM slot?

Storage I/O trends

Today computer and data storage memory vendor Viking announced that SSD vendor Solidfire has deployed their SATADIMM modules in DDR3 DIMM (e.g. Random Access Memory (RAM) main memory) slots of their SF SSD based storage solution.

solidfire ssd storage with satadimm
Solidfire SD solution with SATADIMM via Viking

Nand flash SATA SSD in a DDR3 DIMM slot?

Per Viking, Solidfire uses the SATADIMM as boot devices and cache to complement the normal SSD drives used in their SF SSD storage grid or cluster. For those not familiar, Solidfire SF storage systems or appliances are based on industry standard servers that are populated with SSD devices which in turn are interconnected with other nodes (servers) to create a grid or cluster of SSD performance and space capacity. Thus as nodes are added, more performance, availability and capacity are also increased all of which are accessed via iSCSI. Learn more about Solidfire SD solutions on their website here.

Here is the press release that Viking put out today:

Viking Technology SATADIMM Increases SSD Capacity in SolidFire’s Storage System (Press Release)

Viking Technology’s SATADIMM enables higher total SSD capacity for SolidFire systems, offering cloud infrastructure providers an optimized and more powerful solution

FOOTHILL RANCH, Calif., August 12, 2013 – Viking Technology, an industry leading supplier of Solid State Drives (SSDs), Non-Volatile Dual In-line Memory Module (NVDIMMs), and DRAM, today announced that SolidFire has selected its SATADIMM SSD as both the cache SSD and boot volume SSD for their storage nodes. Viking Technology’s SATADIMM SSD enables SolidFire to offer enhanced products by increasing both the number and the total capacity of SSDs in their solution.

“The Viking SATADIMM gives us an additional SSD within the chassis allowing us to dedicate more drives towards storage capacity, while storing boot and metadata information securely inside the system,” says Adam Carter, Director of Product Management at SolidFire. “Viking’s SATADIMM technology is unique in the market and an important part of our hardware design.”

SATADIMM is an enterprise-class SSD in a Dual In-line Memory Module (DIMM) form factor that resides within any empty DDR3 DIMM socket. The drive enables SSD caching and boot capabilities without using a hard disk drive bay. The integration of Viking Technology’s SATADIMM not only boosts overall system performance but allows SolidFire to minimize potential human errors associated with data center management, such as accidentally removing a boot or cache drive when replacing an adjacent failed drive.

“We are excited to support SolidFire with an optimal solid state solution that delivers increased value to their customers compared to traditional SSDs,” says Adrian Proctor, VP of Marketing, Viking Technology. “SATADIMM is a solid state drive that takes advantage of existing empty DDR3 sockets and provides a valuable increase in both performance and capacity.”

SATADIMM is a 6Gb SATA SSD with capacities up to 512GB. A next generation SAS solution with capacities of 1TB & 2TB will be available early in 2014. For more information, visit our website www.vikingtechnology.com or email us at sales@vikingtechnology.com.

Sales information is available at: www.vikingtechnology.com, via email at sales@vikingtechnology.com or by calling (949) 643-7255.

About Viking Technology Viking Technology is recognized as a leader in NVDIMM technology. Supporting a broad range of memory solutions that bridge DRAM and SSD, Viking delivers solutions to OEMs in the enterprise, high-performance computing, industrial and the telecommunications markets. Viking Technology is a division of Sanmina Corporation (Nasdaq: SANM), a leading Electronics Manufacturing Services (EMS) provider. More information is available at www.vikingtechnology.com.

About SolidFire SolidFire is the market leader in high-performance data storage systems designed for large-scale public and private cloud infrastructure. Leveraging an all-flash scale-out architecture with patented volume-level quality of service (QoS) control, providers can now guarantee storage performance to thousands of applications within a shared infrastructure. In-line data reduction techniques along with system-wide automation are fueling new block-storage services and advancing the way the world uses the cloud.

What’s inside the press release

On the surface this might cause some to jump to the conclusion that the nand flash SSD is being accessed via the fast memory bus normally used for DRAM (e.g. main memory) of a server or storage system controller. For some this might even cause a jump to conclusion that Viking has figured out a way to use nand flash for reads and writes not only via a DDR3 DIMM memory location, as well as doing so with the Serial ATA (SATA) protocol enabling server boot and use by any operating system or hypervisors (e.g. VMware vSphere or ESXi, Microsoft Hyper-V, Xen or KVM among others).

Note for those not familiar or needing a refresh on DRAM, DIMM and related items, here is an excerpt from Chapter 7 (Servers – Physical, Virtual and Software) from my book "The Green and Virtual Data Center" (CRC Press).

7.2.2 Memory

Computers rely on some form of memory ranging from internal registers, local on-board processor Level 1 (L1) and Level 2 (L2) caches, random accessible memory (RAM), non-volatile RAM (NVRAM) or Flash along with external disk storage. Memory, which includes external disk storage, is used for storing operating system software along with associated tools or utilities, application programs and data. Read more of the excerpt here…

Is SATADIMM memory bus nand flash SSD storage?

In short no.

Some vendors or their surrogates might be tempted to spin such a story by masking some details to allow your imagination to run wild a bit. When I saw the press release announcement I reached out to Tinh Ngo (Director Marketing Communications) over at Viking with some questions. I was expecting the usual marketing spin story, dancing around the questions with long answers or simply not responding with anything of substance (or that requires some substance to believe). Again what I found was the opposite and thus want to share with you some of the types of questions and answers.

So what actually is SATADIMM? See for yourself in the following image (click on it to view or Viking site).

Via Viking website, click on image or here to learn more about SATADIMM

Does SATADIMM actually move data via DDR3 and memory bus? No, SATADIMM only draws power from it (yes nand flash does need power when in use contrary to a myth I was told about).

Wait, then how is data moved and how does it get to and through the SATA IO stack (hardware and software)?

Simple, there is a cable connector that attached to the SATADIMM that in turn attached to an internal SATA port. Or using a different connector cable attach the SATADIMM (up to four) to a standard SAS internal port such as on a main board, HBA, RAID or caching adapter.

industry trend

Does that mean that Viking and who ever uses SATADIMM is not actually moving data or implementing SATA via the memory bus and DDR3 DIMM sockets? That would be correct, data movement occurs via cable connection to standard SATA or SAS ports.

Wait, why would I give up a DDR3 DIMM socket in my server that could be used for more DRAM? Great question and one that should be it depends on if you need more DRAM or more nand flash? If you are out of drive slots or PCIe card slots and have enough DRAM for your needs along with available DDR3 slots, you can stuff more nand flash into those locations assuming you have SAS or SATA connectivity.

SATADIMM with SATA connector top right via Viking

SATADIMM SATA connector via Viking

satadimm sas connector
SATADIMM SAS (Internal) connector via Viking

Why not just use the onboard USB ports and plug-in some high-capacity USB thumb drives to cut cost? If that is your primary objective it would probably work and I can also think of some other ways to cut cost. However those are also probably not the primary tenants that people looking to deploy something like SATADIMM would be looking for.

What are the storage capacities that can be placed on the SATADIMM? They are available in different sizes up to 400GB for SLC and 480GB for MLC. Viking indicated that there are larger capacities and faster 12Gb SAS interfaces in the works which would be more of a surprise if there were not. Learn more about current product specifications here.

Good questions. Attached are three images that sort of illustrates the connector. As well, why not a USB drive; well, there are customers that put 12 of these in the system (with up to 480GB usable capacity) that equates to roughly an added 5.7TBs inside the box without touching the drive bays (left for mass HDD’s). You will then need to raid/connect) all the SATADIMM via a HBA.

How fast is the SATADIMM and does putting it into a DDR3 slot speed things up or slow them down? Viking has some basic performance information on their site (here). However generally should be the same or similar to reach a SAS or SATA SSD drive, although keep SSD metrics and performance in the proper context. Also keep in mind that the DDR3 DIMM slot is only being used for power and not real data movement.

Is the SATADIMM using 3Gbs or 6Gbs SATA? Good questions, today is 6Gb SATA (remember that SATA can attach to a SAS port however not vise versa). Lets see if Viking responds in the comments with more including RAID support (hardware or software) along with other insight such as UNMAP, TRIM, Advanced Format (AF) 4KByte blocks among other things.

Have I actually tried SATADIMM yet? No, not yet. However would like to give it a test drive and workout if one were to show up on my doorstep along with disclosure and share the results if applicable.

industry trend

Future of nand flash in DRAM DIMM sockets

Keep in mind that someday nand flash will actually seem not only in a Webex or Powerpoint demo preso (e.g. similar to what Diablo Technology is previewing), as well as in real use for example what Micron earlier this year predicted for flash on DDR4 (more DDR3 vs. DDR4 here).

Is SATADIMM the best nand flash SSD approach for every solution or environment? No, however it does give some interesting options for those who are PCIe card, or HDD and SSD drive slot constrained that also have available DDR3 DIMM sockets. As to price, check with Viking, wish I could say tell them Greg from StorageIO sent you for a good value, however not sure what they would say or do.

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

March 19, 2013December 24, 2020

Where has the FCoE hype and FUD gone? (with poll)

Storage I/O cloud virtual and big data perspectives

A couple of years ago I did this post about if Is FCoE Struggling to Gain Traction, or on a normal adoption course?

Fast forward to today, has anybody else noticed that there seems to be less hype and fud on Fibre Channel (FC) over Ethernet (FCoE) than a year or two or three ago?

Does this mean that FCoE as the fud or detractors were predicting is in fact stillborn with no adoption, no deployment and dead on arrival?

Does this mean that FCoE as its proponents have said is still maturing, quietly finding adoption and deployment where it fits?

Does this mean that FCoE like its predecessors Fibre Channel and Ethernet are still evolving, expanding from early adopter to a mature technology?

Does this mean that FCoE is simply forgotten with software defined networking (SDN) having over-shadowed it?

Does this mean that FCoE has finally lost out and that iSCSI has finally stepped up and living up to what it was hyped to do ten years ago?

Does this mean that FC itself at either 8GFC or 16GFC is holding its own for now?

Does this mean that InfiniBand is on the rebound?

Does this mean that FCoE is simply not fun or interesting, or a shiny new technology with vendors not spending marketing money so thus people not talking, tweeting or blogging?

Does this mean that those who were either proponents pitching it or detractors despising it have found other things to talk about from SDN to OpenFlow to IOV to Software Defined Storage (what ever, or who ever definition your subscribe to) to cloud, big or little data and the list goes on?

I continue hear of or talk with customers organizations deploying FCoE in addition to iSCSI, FC, NAS and other means of accessing storage for cloud, virtual and physical environments.

Likewise I see some vendor discussions occurring not to mention what gets picked up via google alerts.

However in general, the rhetoric both pro and against, hype and FUD seems to have subsided, or at least for now.

So what gives, what’s your take on FCoE hype and FUD?

Cast your vote and see results here.

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

July 31, 2012May 8, 2022

Oracle, Xsigo, VMware, Nicira, SDN and IOV: IO IO its off to work they go

StorageIO industry trends and perspectives

In case you missed it, VMware recently announced spending $1.05 billion USD acquiring startup Nicira for their virtualization and software technology that enables software defined networks (SDN). Also last week Oracle was in the news getting its hands slapped by for making misleading advertisement performance claims vs. IBM.

On the heals of VMware buying Nicira for software defined networking (SDN) or what is also known as IO virtualization (IOV) and virtualized networking, Oracle is now claiming their own SDN capabilities with their announcement of intent to acquire Xsigo. Founded in 2004, Xsigo has a hardware platform combined with software to enable attachment of servers to different Fibre Channel (SAN) and Ethernet based (LAN) networks with their version of IOV.

Now its Oracle who has announced that it will be acquiring IO, networking, virtualization hardware and software vendor Xsigo founded in 2004 for an undisclosed amount. Xsigo has made its name in the IO virtualization (IOV) and converged networking along with server and storage virtualization space over the past several years including partnerships with various vendors.

Technology buzzwords and buzz terms can often be a gray area leaving plenty of room for marketers and PR folks to run with. Case in point AaaS, Big data, Cloud, Compliance, Green, IaaS, IOV, Orchestration, PaaS and Virtualization among other buzzword bingo or XaaS topics. Since Xsigo has been out front in messaging and industry awareness around IO networking convergence of Ethernet based Local Area Networks (LANs) and Fibre Channel (FC) based Storage Area Networks (SANs), along with embracing InfiniBand, it made sense for them to play to their strength which is IO virtualization (aka IOV).

Too me and among others (here and here and here) it is interesting that Xsigo has not laid claims to being part of the software defined networking (SDN) movement or the affiliated OpenFlow networking initiatives as happens with Nicira (and Oracle for that matter). In the press release that the Oracle marketing and PR folks put out on a Monday morning, some of the media and press, both trade industry, financial and general news agency took the Oracle script hook line and sinker running with it.

What was effective is how well many industry trade pubs and their analysts simply picked up the press release story and ran with it in the all too common race to see who can get the news or story out first, or before it actually happens in some cases.

Image of media, news papers

Too be clear, not all pubs jumped including some of those mentioned by Greg Knieriemen (aka @knieriemen) over at SpeakinginTech highlights. I know some who took the time to call, ask around, leverage their journalistic training to dig, research and find out what this really meant vs. simply taking and running with the script. An example of one of those calls that I had was with Beth Pariseu (aka @pariseautt) that you can read her story here and here.

Interesting enough, the Xsigo marketers had not embraced the SDN term sticking with the more known (at least in some circles) VIO and VIO descriptions. What is also interesting is just last week Oracle marketing had their hands slapped by the Better Business Bureau (BBB) NAD after IBM complained about unfair performance based advertisements on ExaData.

Hmm, I wonder if the SDN police or somebody else will lodge a similar complaint with the BBB on behalf of those doing SDN?

Both Oracle and Xsigo along with other InfiniBand (and some Ethernet and PCIe) focused vendors are members of the Open Fabric initiative, not to be confused with the group working on OpenFlow.

StorageIO industry trends and perspectives

Here are some other things to think about:

Oracle has a history of doing different acquisitions without disclosing terms, as well as doing them based on earn outs such as was the case with Pillar.

Oracle use Ethernet in the servers and appliances as well as has been an adopter of InfiniBand primarily for node to node communication, however also for server to application.

Oracle is also an investor in Mellanox the folks that make InfiniBand and Ethernet products.

Oracle has built various stacks including ExaData (Database machine), Exalogic, Exalytics and Database Appliance in addition to their 7000 series of storage systems.

Oracle has done earlier virtualization related acquisitions including Virtual Iron.

Oracle has a reputation with some of their customers who love to hate them for various reasons.

Oracle has a reputation of being aggressive, even by other market leader aggressive standards.

Integrated solution stacks (aka stack wars) or what some remember as bundles continues and Oracle has many solutions.

What will happen to Xsigo as you know it today (besides what the press releases are saying).

While Xsigo was not a member of the Open Networking Forum (ONF), Oracle is.

Xsigo is a member of the Open Fabric Alliance along with Oracle, Mellanox and others interested in servers, PCIe, InfiniBand, Ethernet, networking and storage.

StorageIO industry trends and perspectives

What’s my take?

While there are similarities in that both Nicira and Xsigo are involved with IO Virtualization, what they are doing, how they are doing it, who they are doing it with along with where they can play vary.

Not sure what Oracle paid however assuming that it was in the couple of million dollars or less, cash or combination of stock, both they and the investors as well as some of the employees, friends and family’s did ok.

Oracle also gets some intellectual property that they can combine with other earlier acquisitions via Sun and Virtual Iron along with their investment in InfiniBand (also now Ethernet) vendor Mellanox

Likewise, Oracle gets some extra technology that they can leverage in their various stacked or integrated (aka bundled) solutions for both virtual and physical environments.

For Xsigo customers the good news is that you now know who will be buying the company, however and should be questions about the future beyond what is being said in press releases.

Does this acquisition give Oracle a play in the software defined networking space like Nicira gives to VMware I would say no given their hardware dependency, however it does give Oracle some extra technology to play with.

Likewise while important and a popular buzzword topic (e.g. SDN), since OpenFlow comes up in conversations, perhaps that should be more of the focus vs. if a solution is all software or hardware and software.

StorageIO industry trends and perspectives

I also find it entertaining how last week the Better Business Bureau (BBB) and NAD (National Advertising Division) slapped Oracles hands after IBM complaints of misleading performance claims about Oracle ExaData vs. IBM. The reason I find it entertaining is not that Oracle had its hands slapped or that IBM complained to the BBB, rather how the Oracle marketers and PR folks came up with a spin around what could be called a proprietary SDN (hmm, pSDN ?) story feed it to the press and media who then ran with it.

Im not convinced that this is an all our launch of a war by Oracle vs. Cisco let alone any of the other networking vendors as some have speculated (makes for good headlines though). Instead Im seeing it as more of an opportunistic acquisition by Oracle most likely at a good middle of summer price. Now if Oracle really wanted to go to battle with Cisco (and others), then there are others to buy such as Brocade, Juniper, etc etc etc. However there are other opportunities for Oracle to be focused (or side tracked on right now).

Oh, lets also see what Cisco has to say about all of this which should be interesting.

StorageIO industry trends and perspectives

If you are interested in learning more about IOV, Xisgo, or are having trouble sleeping, click here, here, here, here, here, here, here, here, here, here, here, here, here, or here (I think that’s enough links for now ;).

Ok, nuff said for now as I have probably requalified for being on the Oracle you know what list for not sticking to the story script, opps, excuse me, I mean press release message.

Cheers Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press, 2011), The Green and Virtual Data Center (CRC Press, 2009), and Resilient Storage Networks (Elsevier, 2004)

twitter @storageio

July 3, 2012May 24, 2020

How can direct attached storage (DAS) make a comeback if it never left?

Have you seen or heard the theme that Direct Attached Storage (DAS), either dedicated or shared, internal or external is making a comeback?

Wait, if something did not go away, how can it make a comeback?

IMHO it is as simple as for the past decade or so, DAS has been overshadowed by shared networked storage including switched SAS, iSCSI, Fibre Channel (FC) and FC over Ethernet (FCoE) based block storage area networks (SAN) and file based (NFS and Windows SMB/CIFS) network attached storage (NAS) using IP and Ethernet networks. This has been particularly true by most of the independent storage vendors who have become focused on networked storage (SAN or NAS) solutions.

However some of the server vendors have also jumped into the deep end of the storage pool with their enthusiasm for networked storage, even though they still sell a lot of DAS including internal dedicated, along with external dedicated and shared storage.

The trend for DAS storage has evolved with the interfaces and storage mediums including from parallel SCSI and IDE to SATA and more recently 3Gbs and 6Gbs SAS (with 12Gbs in first lab trials). Similarly the storage mediums include a mix of fast 10K and 15K hard disk drives (HDD) along with high-capacity HDDs and ultra-high performance solid state devices (SSD) moving from 3.5 to 2.5 inch form factors.

While there has been a lot of industry and vendor marketing efforts around networked storage (e.g. SAN and NAS), DAS based storage was over shadowed so it should not be a surprise that those focused on SAN and NAS are surprised to hear DAS is alive and well. Not only is DAS alive and well, it’s also becoming an important scaling and convergence topic for adding extra storage to appliances as well as servers including those for scale out, big data, cloud and high density not to mention high performance and high productivity computing.

Consequently its becoming ok to talk about DAS again. Granted you might get some peer pressure from your trend setting or trend following friends to get back on the networked storage bandwagon. Keep this in mind, take a look at some of the cool trend setting big data and little data (database) appliances, backup, dedupe and archive appliances, cloud and scale out NAS and object storage systems among others and will likely find DAS on the back-end. On a smaller scale, or in high-density rack deployments in large cloud or similar environments you may also find DAS including switched shared SAS.

Does that mean SANs are dead?
No, not IMHO despite what some vendors marketers and their followers will claim which is ironic given how some of them were leading the DAS is dead campaign in favor of iSCSI or FC or NAS a few years ago. However simply comparing DAS to SAN or NAS in a competing way is like comparing apples to oranges, instead, look at how and where they can complement and enable each other. In other words, different tools for various tasks, various storage and interfaces for different needs.

Thus IMHO DAS never left or went anywhere per say, it just was not fashionable or cool to talk about until now as it is cool and trend to discuss it again.

Ok, nuff said for now.

Cheers Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press, 2011), The Green and Virtual Data Center (CRC Press, 2009), and Resilient Storage Networks (Elsevier, 2004)

twitter @storageio

June 4, 2012January 23, 2019

Why FC and FCoE vendors get beat up over bandwidth?

Storage I/O Industry Trends and Perspectives

Have you noticed how Fibre Channel (FC) and FC over Ethernet (FCoE) switch and adapter vendors and their followers focus around bandwidth vs. response time, latency or other performance activity? For example, 8Gb FC (e.g. 8GFC), or 10Gb as opposed to latency and response time, or IOPS and other activity indicators.

When you look at your own environment, or that of a customers or prospects or hear of a conversation involving storage networks, is the focus on bandwidth, or lack of it, or perhaps throughput being a non-issue? For example, a customer says why go to 16GFC when they are barely using 8Gb with their current FC environment.

This is not a new phenomenon and is something I saw when working for a storage-networking vendor who had SAN, MAN and WAN solutions (E.g. INRANGE). Those with networking backgrounds tended to focus on bandwidth when discussing storage networks while those with storage, server or applications background also look at latency or IO completion time (response time), queuing, message size, IOPs or frames and packets per second. Thus there are different storage and networking metrics that matter that are also discussed further in my first book Resilient Storage Networks: Designing Flexible Scalable Data Infrastructures.

When I hear a storage networking vendor talk about their latest 16GFC based product I like to ask them what is the biggest benefit vs. 8GFC and not surprisingly, the usual response is like twice the bandwidth. When I ask them about what that means in terms of more IOPS in a given amount of time, or reduced IO completion time, lower latency, sometimes I often get the response along the lines of Yeah, that too, however it has twice the bandwidth.

Ok, I get it, yes, bandwidth is important for some applications, however so too are activity measured in IOPS, transactions, packets, frames, pages, sequences and exchanges among other units of measure along with response time and latency (e.g. different storage and networking metrics that matter).

What many storage networking vendors actually get, however they don’t talk about it for various reasons, perhaps because they are not be asked about it, or engaged in the conversation is that there is an improvement in response time in going from such as 8GFC to 16GFC. Likewise, there can be improvements in response time in addition to the more commonly discussed bandwidth.

If you are a storage networking switch, adapter or other component vendor, var or channel partner expand your conversation to include activity and response time as part of your value proposition. Likewise, if you are a customer, ask your technology providers to expand on the conversation of how new technologies help in areas other than bandwidth.

Ok, nuff said for now

Cheers Gs

Greg Schulz – Author Cloud and Virtual Data Storage Networking (CRC Press, 2011), The Green and Virtual Data Center (CRC Press, 2009), and Resilient Storage Networks (Elsevier, 2004)

twitter @storageio

What is Azure Elastic SAN

How Azure Elastic SAN differs from other Azure Storage

Azure Elastic Storage Feature Highlights

Who is Azure Elastic SAN for

How Azure Elastic SAN works

Using Azure Elastic SAN

Azure Elastic SAN Cost Pricing

Azure Elastic SAN Performance

Additional Resources Where to learn more

What this all means

Wrap up

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Volume 17, Issue VII (Pre VMworld 2017)

In This Issue

Data Infrastructure and IT Industry Activity Trends

Server StorageIO Commentary in the news

Server StorageIOblog Posts

Server StorageIO Data Infrastructure Tips and Articles

Events and Activities

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AWS S3 Storage Gateway Revisited (Part I)

AWS S3 Storage Gateway and What’s New

AWS Storage Gateway Three Functions

Where To Learn More

What This All Means

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Cisco Next Gen 32Gb Fibre Channel and NVMe SAN Updates

Where to Learn More

What this all means, wrap up and summary

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CompTIA needs input for their Storage+ certification, can you help?

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VMware VVOL’s storage I/O fundamentals (Part I)

Taking a step back, digging deeper into Storage I/O and VVOL’s fundamentals

What about VVOL, VAAI and VASA?

What’s this object storage stuff?

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Despite being declared dead, Fibre Channel continues to evolve with FC-BB-6

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Congratulations to VMware on 10 years of VMworld!

Software Defined Data Center (SDDC) and Software Defined Networks (SDN)

Here is a synopsis of what was announced by VMware.

Additional VMworld Software Defined Announcements

Cloud, Virtualization and DCIM

Data Protection including Backup/Restore, BC, DR and Archiving

Caching and flash SSD

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Blog post – Can you help Coraid with a Storage I/O Content Conversation?

Who is Coraid and what do they do?

So here is the experiment

Disclosure

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Nand flash SATA SSD in a DDR3 DIMM slot?

What’s inside the press release

Is SATADIMM memory bus nand flash SSD storage?

Future of nand flash in DRAM DIMM sockets

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