Tag: SSD

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Industry Trends and Perspectives: Tiered Storage, Systems and Mediums

This is part of an ongoing series of short industry trends and perspectives blog posts briefs.

These short posts compliment other longer posts along with traditional industry trends and perspective white papers, research reports, solution brief content found at www.storageioblog.com/reports.

Two years ago we read about how the magnetic disk drive would be dead in a couple of years at the hand of flash SSD. Guess what, it is a couple of years later and the magnetic disk drive is far from being dead. Granted high performance Fibre Channel disks will continue to be replaced by high performance, small form factor 2.5" SAS drives along with continued adoption of high capacity SAS and SATA devices.

Likewise, SSD or flash drives continue to be deployed, however outside of iPhone, iPod and other consumer or low end devices, nowhere near the projected or perhaps hoped for level. Rest assured the trend Im seeing and hearing from IT customers is that some will continue to look for places to strategically deploy SSD where possible, practical and affordable, there will continue to be a roll for disk and even tape devices on a go forward basis.

Also watch for more coverage and discussion around the emergence of the Hybrid Hard Disk Drive (HHDD) that was discussed about four to five years ago. The HHDD made an appearance and then quietly went away for some time, perhaps more R and D time in the labs while flash SSD garnered the spotlight.

There could be a good opportunity for HHDD technology leveraging the best of both worlds that is continued pricing decreases for disk with larger capacity using smaller yet more affordable amounts of flash in a solution that is transparent to the server or storage controller making for easier integration.

Related and companion material:
Blog: ILM = Has It Losts its Meaning
Blog: SSD and Storage System Performance
Blog: Has SSD put Hard Disk Drives (HDDs) On Endangered Species List
Blog: Optimize Data Storage for Performance and Capacity Efficiency

That is all for now, hope you find this ongoing series of current and emerging Industry Trends and Perspectives interesting.

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

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Industry Trends and Perspectives: RAID Rebuild Rates

This is part of an ongoing series of short industry trends and perspectives blog posts briefs.

These short posts compliment other longer posts along with traditional industry trends and perspective white papers, research reports, solution brief content found at www.storageioblog.com/reports.

There is continued concern about how long large capacity disk drives take to be rebuilt in RAID sets particularly as the continued shift from 1TB to 2TB occurs. It should not be a surprise that a disk with more capacity will take longer to rebuild or copy as well as with more drives; the likely hood of one failing statistically increases.

Not to diminish the issue, however also to avoid saying the sky is falling, we have been here before! In the late 90s and early 2000s there was a similar concern with the then large 9GB, 18GB let alone emerging 36GB and 72GB drives. There have been improvements in RAID as well as rebuild algorithms along with other storage system software or firmware enhancements not to mention boost in processor or IO bus performance.

However not all storage systems are equal even if they use the same underlying processors, IO busses, adapters or disk drives. Some vendors have made significant improvements in their rebuild times where each generation of software or firmware can reconstruct a failed drive faster. Yet for others, each subsequent iteration of larger capacity disk drives brings increased rebuild times.

If disk drive rebuild times are a concern, ask your vendor or solution provider what they are doing as well as have done over the past several years to boost their performance. Look for signs of continued improvement in rebuild and reconstruction performance as well as decrease in error rates or false drive rebuilds.

Related and companion material:
Blog: RAID data protection remains relevant
Blog: Optimize Data Storage for Performance and Capacity Efficiency

That is all for now, hope you find this ongoing series of current and emerging Industry Trends and Perspectives interesting.

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

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Seagate to say goodbye to Cayman Islands, Hello Ireland

Seagate (NASDQ: STX) corporation, the parent of the company many people in IT and data storage in particular know as Seagate the disk drive manufacturer is moving their paper headquarters from the Cayman Islands where they have been based since 2000 to Ireland.

Let me rephrase that as Seagate is not moving their Scotts Valley California headquarters of operations or any design, manufacturing or marketing to Ireland that is not already there. Rather, Seagate as a manufacturing company is moving where it is incorporated (paper corporate headquarters) from the Cayman Islands to the Emerald Island of Ireland.

Confused yet?
Do not worry, it is confusing at first. I ended up having to reread through the Seagate corporate material and remembering back to the late 1990s it all started to make sense. Seagate has over 50,000 employees located at facilities around the world including manufacturing, support, design, research and development, sales and marketing along with corporate administration among others.

Their business while focused on data storage currently is very much centered on magnetic disk drives with a much diversified portfolio including products obtained via their acquisition of Maxtor. The Seagate product portfolio includes among others high end enterprise class Fibre Channel and SAS 15,500 RPM (15.5K) high performance to high capacity SAS and SATA devices, 10K small form factor (SFF) to mid market, SMB, USB based SOHO, prosumer or consumer along with portable and specialized devices among many others including emerging SSD and hybrid devices.

However back in the late 1990s, Seagate ventured off into some other areas for a time being including owning (in part) Veritas (since divested and now part of Symantec), Xiotech (now back on its own under venture ownership including some tied to Seagate) among some other transactions. In a series of moves, merger and acquisition, divestures, restructuring, paper corporate headquarters that reads like something out of a Hollywood movie, Seagate ended up moving its place of incorporation to the Cayman Islands.

Seagate as it was known had essentially become the manufacturing company owned by a paper holding company incorporated off shore for business and tax purposes. Want to learn more, read the companies annual reports and other filings some of which can be found here.

The Business End of the Move
Without getting into the deep details of international finance, tax law or articles of business incorporation, many companies are actually incorporated in a location different from where they actualy have their headquarters. In the United States, that is often Delaware where corporations file their paper work for articles of incorporations and then locate their headquarters or primary place of business elsewhere.

Seagate SEC filings outlining move
Seagate SEC filing outlining proposed move

Outside of the United States, the Cayman Islands among other locations have been a popular location for companies to file their paper work and have a paper headquarters due to favorable tax rates and other business benefits. Perhaps you have even watched a movie or two where part of the plot involved some business transaction of a paper company located in the Cayman Island as a means of shelter business dealings. In the case of Seagate, in 2000 during a restricting their corporate (paper) headquarters was moved to the Cayman due to its favorable business climate including lower tax structure.

Dive Cayman Islands

Disclosure: While I am a certified and experienced PADI SCUBA Divemaster having visited many different venues, Cayman Island is not one of them. Likewise, while I have distant relatives never meet, I would live to visit Ireland sometime.

Why is Seagate saying goodbye to the nice warm climate of the Cayman Islands heading off to the emerald Isle?

Visit Ireland

Simple, a more favorable business climate that include international business and taxation benefits as well as Ireland is not coming under scrutiny as a tax haven by the U.S. and other governments as have the Cayman Islands (along with other locations). Let me also be clear that Seagate is not new to Ireland having had a presence there for some time (See here).

What does all of this mean?
From a technology perspective pretty much nothing as this appears to be mainly a business and financial move for the shareholders of Seagate. As for impact on shareholders, other than reading through some documents if so inclined, probably not much impact if any at all.

As for IT customers, their solution providers who are customers of Seagate this probably does not mean anything at all as it should be business as usual.

What about others parties, governments, countries or entities?

Tough to say if this is a trend of companies that will begin moving their paper headquarters from the Caymans to elsewhere so as to escape being in the spotlight of U.S. and other governments looking for additional revenues.

Perhaps a boon to Ireland if more companies decide to move their paper as well as actual company operations there as many have done over the past decades. Otherwise for the rest of us, it can make for interesting reading, conversations, speculation, debate and discussion.

And that is all that I have to say about this for now, what say you?

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

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Spring 2010 StorageIO Newsletter

Welcome to the spring 2010 edition of the Server and StorageIO (StorageIO) news letter.

This edition follows the inaugural issue (Winter 2010) incorporating feedback and suggestions as well as building on the fantastic responses received from recipients.

A couple of enhancements included in this issue (marked as New!) include a Featured Related Site along with Some Interesting Industry Links. Another enhancement based on feedback is to include additional comment that in upcoming issues will expand to include a column article along with industry trends and perspectives.

StorageIO News Letter Image
Spring 2010 Newsletter

You can access this news letter via various social media venues (some are shown below) in addition to StorageIO web sites and subscriptions. Click on the following links to view the spring 2010 newsletter as HTML or PDF or, to go to the newsletter page.

Follow via Goggle Feedburner here or via email subscription here.

You can also subscribe to the news letter by simply sending an email to newsletter@storageio.com

Enjoy this edition of the StorageIO newsletter, let me know your comments and feedback.

Also, a very big thank you to everyone who has helped make StorageIO a success!.

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

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2012 StorageIO and UnlimitedIO All Rights Reserved

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Technology Tiering, Servers Storage and Snow Removal

Granted it is winter in the northern hemisphere and thus snow storms should not be a surprise.

However between December 2009 and early 2010, there has been plenty of record activity from in the U.K. (or here), to the U.S. east coast including New York, Boston and Washington DC, across the midwest and out to California, it made for a white christmas and SANta fun along with snow fun in general in the new year.

2010 Snow Storm via www.star-telegram.com

What does this have to do with Information Factories aka IT resources including public or private clouds, facilities, server, storage, networking along with data management let alone tiering?

What does this have to do with tiered snow removal, or even snow fun?

Simple, different tools are needed for addressing various types of snow from wet and heavy to light powdery or dustings to deep downfalls. Likewise, there are different types of servers, storage, data networks along with operating systems, management tools and even hyper visors to deal with various application needs or requirements.

First, lets look at tiered IT resources (servers, storage, networks, facilities, data protection and hyper visors) to meet various efficiency, optimization and service level needs.

Do you have tiered IT resources?

Let me rephrase that question to do you have different types of servers with various performance, availability, connectivity and software that support various applications and cost levels?

Thus the whole notion of tiered IT resources is to be abe to have different resources that can be aligned to the task at hand in order to meet performance, availability, capacity, energy along with economic along with service level agreement (SLA) requirements.

Computers or servers are targeted for different markets including Small Office Home Office (SOHO), Small Medium Business (SMB), Small Medium Enterprise (SME) and ultra large scale or extreme scaling, including high performance super computing. Servers are also positioned for different price bands and deployment scenarios.

General categories of tiered servers and computers include:

  • Laptops, desktops and workstations
  • Small floor standing towers or rack mounted 1U and 2U servers
  • Medium sizes floor standing towers or larger rack mounted servers
  • Blade Centers and Blade Servers
  • Large size floor standing servers, including mainframes
  • Specialized fault tolerant, rugged and embedded processing or real time servers

Servers have different names email server, database server, application server, web server, and video or file server, network server, security server, backup server or storage server associated with them depending on their use. In each of the previous examples, what defines the type of server is the type of software is being used to deliver a type of service. Sometimes the term appliance will be used for a server; this is indicative of the type of service the combined hardware and software solution are providing. For example, the same physical server running different software could be a general purpose applications server, a database server running for example Oracle, IBM, Microsoft or Teradata among other databases, an email server or a storage server.

This can lead to confusion when looking at servers in that a server may be able to support different types of workloads thus it should be considered a server, storage, networking or application platform. It depends on the type of software being used on the server. If, for example, storage software in the form a clustered and parallel file system is installed on a server to create highly scalable network attached storage (NAS) or cloud based storage service solution, then the server is a storage server. If the server has a general purpose operating system such as Microsoft Windows, Linux or UNIX and a database on it, it is a database server.

While not technically a type of server, some manufacturers use the term tin wrapped software in an attempt to not be classified as an appliance, server or hardware vendor but want their software to be positioned more as a turnkey solution. The idea is to avoid being perceived as a software only solution that requires integration with hardware. The solution is to use off the shelf commercially available general purpose servers with the vendors software technology pre integrated and installed ready for use. Thus, tin wrapped software is a turnkey software solution with some tin, or hardware, wrapped around it.

How about the same with tiered storage?

That is different tiers (Figure 1) of fast high performance disk including RAM or flash based SSD, fast Fibre Channel or SAS disk drives, or high capacity SAS and SATA disk drives along with magnetic tape as well as cloud based backup or archive?

Tiered Storage Resources
Figure 1: Tiered Storage resources

Tiered storage is also sometimes thought of in terms large enterprise class solutions or midrange, entry level, primary, secondary, near line and offline. Not to be forgotten, there are also tiered networks that support various speeds, convergence, multi tenancy and other capabilities from IO Virtualization (IOV) to traditional LAN, SAN, MAN and WANs including 1Gb Ethernet (1GbE), 10GbE up to emerging 40GbE and 100GbE not to mention various Fibre Channel speeds supporting various protocols.

The notion around tiered networks is like with servers and storage to enable aligning the right technology to be used for the task at hand economically while meeting service needs.

Two other common IT resource tiering techniques include facilities and data protection. Tiered facilities can indicate size, availability, resiliency among other characteristics. Likewise, tiered data protection is aligning the applicable technology to support different RTO and RPO requirements for example using synchronous replication where applicable vs. asynchronous time delayed for longer distance combined with snapshots. Other forms of tiered data protection include traditional backups either to disk, tape or cloud.

There is a new emerging form of tiering in many IT environments and that is tiered virtualization or specifically tiered server hyper visors in virtual data centers with similar objectives to having different server, storage, network, data protection or facilities tiers. Instead of an environment running all VMware, Microsoft HyperV or Xen among other hyper visors may be deployed to meet different application service class requirements. For example, VMware may be used for premium features and functionality on some applications, where others that do not need those features along with requiring lower operating costs leverage HyperV or Zen based solutions. Taking the tiering approach a step further, one could also declare tiered databases for example Oracle legacy vs. MySQL or Microsoft SQLserver among other examples.

What about IT clouds, are those different types of resources, or, essentially an extension of existing IT capabilities for example cloud storage being another tier of data storage?

There is another form of tiering, particularly during the winter months in the northern hemisphere where there is an abundance of snow this time of the year. That is, tiered snow management, removal or movement technologies.

What about tiered snow removal?

Well lets get back to that then.

Like IT resources, there are different technologies that can be used for moving, removing, melting or managing snow.

For example, I cant do much about getting ready of snow other than pushing it all down the hill and into the river, something that would take time and lots of fuel, or, I can manage where I put snow piles to be prepared for next storm, plus, to help put it where the piles of snow will melt and help avoid spring flood. Some technologies can be used for relocating snow elsewhere, kind of like archiving data onto different tiers of storage.

Regardless of if snowstorm or IT clouds (public or private), virtual, managed service provider (MSP), hosted or traditional IT data centers, all require physical servers, storage, I/O and data networks along with software including management tools.

Granted not all servers, storage or networking technology let alone software are the same as they address different needs. IT resources including servers, storage, networks, operating systems and even hyper visors for virtual machines are often categorized and aligned to different tiers corresponding to needs and characteristics (Figure 2).

Tiered IT Resources
Figure 2: Tiered IT resources

For example, in figure 3 there is a light weight plastic shovel (Shove 1) for moving small amounts of snow in a wide stripe or pass. Then there is a narrow shovel for digging things out, or breaking up snow piles (Shovel 2). Also shown are a light duty snow blower (snow thrower) capable of dealing with powdery or non wet snow, grooming in tight corners or small areas.

Tiered Snow tools
Figure 3: Tiered Snow management and migration tools

For other light dustings, a yard leaf blower does double duty for migrating or moving snow in small or tight corners such as decks, patios or for cleanup. Larger snowfalls, or, where there is a lot of area to clear involves heavier duty tools such as the Kawasaki mule with 5 foot curtis plow. The mule is a multifunction, multi protocol tool capable of being used for hauling items, towing, pulling or recreational tasks.

When all else fails, there is a pickup truck to get or go out and about, not to mention to pull other vehicles out of ditches or piles of snow when they become stuck!

Snow movement
Figure 4: Sometimes the snow light making for fast, low latency migration

Snow movement
Figure 5: And sometimes even snow migration technology goes off line!

Snow movement

And that is it for now!

Enjoy the northern hemisphere winter and snow while it lasts, make the best of it with the right tools to simplify the tasks of movement and management, similar to IT resources.

Keep in mind, its about the tools and when along with how to use them for various tasks for efficiency and effectiveness, and, a bit of snow fun.

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

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2010 and 2011 Trends, Perspectives and Predictions: More of the same?

2011 is not a typo, I figured that since Im getting caught up on some things, why not get a jump as well.

Since 2009 went by so fast, and that Im finally getting around to doing an obligatory 2010 predictions post, lets take a look at both 2010 and 2011.

Actually Im getting around to doing a post here having already done interviews and articles for others soon to be released.

Based on prior trends and looking at forecasts, a simple predictions is that some of the items for 2010 will apply for 2011 as well given some of this years items may have been predicted by some in 2008, 2007, 2006, 2005 or, well ok, you get the picture. :)

Predictions are fun and funny in that for some, they are taken very seriously, while for others, at best they are taken with a grain of salt depending on where you sit. This applies both for the reader as well as who is making the predictions along with various motives or incentives.

Some are serious, some not so much…

For some, predictions are a great way of touting or promoting favorite wares (hard, soft or services) or getting yet another plug (YAP is a TLA BTW) in to meet coverage or exposure quota.

Meanwhile for others, predictions are a chance to brush up on new terms for the upcoming season of buzzword bingo games (did you pick up on YAP).

In honor of the Vancouver winter games, Im expecting some cool Olympic sized buzzword bingo games with a new slippery fast one being federation. Some buzzwords will take a break in 2010 as well as 2011 having been worked pretty hard the past few years, while others that have been on break, will reappear well rested, rejuvenated, and ready for duty.

Lets also clarify something regarding predictions and this is that they can be from at least two different perspectives. One view is that from a trend of what will be talked about or discussed in the industry. The other is in terms of what will actually be bought, deployed and used.

What can be confusing is sometimes the two perspectives are intermixed or assumed to be one and the same and for 2010 I see that trend continuing. In other words, there is adoption in terms of customers asking and investigating technologies vs. deployment where they are buying, installing and using those technologies in primary situations.

It is safe to say that there is still no such thing as an information, data or processing recession. Ok, surprise surprise; my dogs could have probably made that prediction during a nap. However what this means is more data will need to be moved, processed and stored for longer periods of time and at a lower cost without degrading performance or availability.

This means, denser technologies that enable a lower per unit cost of service without negatively impacting performance, availability, capacity or energy efficiency will be needed. In other words, watch for an expanded virtualization discussion around life beyond consolidation for servers, storage, desktops and networks with a theme around productivity and virtualization for agility and management enablement.

Certainly there will be continued merger and acquisitions on both a small as well as large scale ranging from liquidation sales or bargain hunting, to large and a mega block buster or two. Im thinking in terms of outside of the box, the type that will have people wondering perhaps confused as to why such a deal would be done until the whole picture is reveled and thought out.

In other words, outside of perhaps IBM, HP, Oracle, Intel or Microsoft among a few others, no vendor is too large not to be acquired, merged with, or even involved in a reverse merger. Im also thinking in terms of vendors filling in niche areas as well as building out their larger portfolio and IT stacks for integrated solutions.

Ok, lets take a look at some easy ones, lay ups or slam dunks:

  • More cluster, cloud conversations and confusion (public vs. private, service vs. product vs. architecture)
  • More server, desktop, IO and storage consolidation (excuse me, server virtualization)
  • Data footprint impact reduction ranging from deletion to archive to compress to dedupe among others
  • SSD and in particular flash continues to evolve with more conversations around PCM
  • Growing awareness of social media as yet another tool for customer relations management (CRM)
  • Security, data loss/leap prevention, digital forensics, PCI (payment card industry) and compliance
  • Focus expands from gaming/digital surveillance /security and energy to healthcare
  • Fibre Channel over Ethernet (FCoE) mainstream in discussions with some initial deployments
  • Continued confusion of Green IT and carbon reduction vs. economic and productivity (Green Gap)
  • No such thing as an information, data or processing recession, granted budgets are strained
  • Server, Storage or Systems Resource Analysis (SRA) with event correlation
  • SRA tools that provide and enable automation along with situational awareness

The green gap of confusion will continue with carbon or environment centric stories and messages continue to second back stage while people realize the other dimension of green being productivity.

As previously mentioned, virtualization of servers and storage continues to be popular with an expanding focus from just consolidation to one around agility, flexibility and enabling production, high performance or for other systems that do not lend themselves to consolidation to be virtualized.

6GB SAS interfaces as well as more SAS disk drives continue to gain popularity. I have said in the past there was a long shot that 8GFC disk drives might appear. We might very well see those in higher end systems while SAS drives continue to pick up the high performance spinning disk role in mid range systems.

Granted some types of disk drives will give way over time to others, for example high performance 3.5” 15.5K Fibre Channel disks will give way to 2.5” 15.5K SAS boosting densities, energy efficiency while maintaining performance. SSD will help to offload hot spots as they have in the past enabling disks to be more effectively used in their applicable roles or tiers with a net result of enhanced optimization, productivity and economics all of which have environmental benefits (e.g. the other Green IT closing the Green Gap).

What I dont see occurring, or at least in 2010

  • An information or data recession requiring less server, storage, I/O networking or software resources
  • OSD (object based disk storage without a gateway) at least in the context of T10
  • Mainframes, magnetic tape, disk drives, PCs, or Windows going away (at least physically)
  • Cisco cracking top 3, no wait, top 5, no make that top 10 server vendor ranking
  • More respect for growing and diverse SOHO market space
  • iSCSI taking over for all I/O connectivity, however I do see iSCSI expand its footprint
  • FCoE and flash based SSD reaching tipping point in terms of actual customer deployments
  • Large increases in IT Budgets and subsequent wild spending rivaling the dot com era
  • Backup, security, data loss prevention (DLP), data availability or protection issues going away
  • Brett Favre and the Minnesota Vikings winning the super bowl

What will be predicted at end of 2010 for 2011 (some of these will be DejaVU)

  • Many items that were predicted this year, last year, the year before that and so on…
  • Dedupe moving into primary and online active storage, rekindling of dedupe debates
  • Demise of cloud in terms of hype and confusion being replaced by federation
  • Clustered, grid, bulk and other forms of scale out storage grow in adoption
  • Disk, Tape, RAID, Mainframe, Fibre Channel, PCs, Windows being declared dead (again)
  • 2011 will be the year of Holographic storage and T10 OSD (an annual prediction by some)
  • FCoE kicks into broad and mainstream deployment adoption reaching tipping point
  • 16Gb (16GFC) Fibre Channel gets more attention stirring FCoE vs. FC vs. iSCSI debates
  • 100GbE gets more attention along with 4G adoption in order to move more data
  • Demise of iSCSI at the hands of SAS at low end, FCoE at high end and NAS from all angles

Gaining ground in 2010 however not yet in full stride (at least from customer deployment)

  • On the connectivity front, iSCSI, 6Gb SAS, 8Gb Fibre Channel, FCoE and 100GbE
  • SSD/flash based storage everywhere, however continued expansion
  • Dedupe  everywhere including primary storage – its still far from its full potential
  • Public and private clouds along with pNFS as well as scale out or clustered storage
  • Policy based automated storage tiering and transparent data movement or migration
  • Microsoft HyperV and Oracle based server virtualization technologies
  • Open source based technologies along with heterogeneous encryption
  • Virtualization life beyond consolidation addressing agility, flexibility and ease of management
  • Desktop virtualization using Citrix, Microsoft and VMware along with Microsoft Windows 7

Buzzword bingo hot topics and themes (in no particular order) include:

  • 2009 and previous year carry over items including cloud, iSCSI, HyperV, Dedupe, open source
  • Federation takes over some of the work of cloud, virtualization, clusters and grids
  • E2E, End to End management preferably across different technologies
  • SAS, Serial Attached SCSI for server to storage systems and as disk to storage interface
  • SRA, E23, Event correlation and other situational awareness related IRM tools
  • Virtualization, Life beyond consolidation enabling agility, flexibility for desktop, server and storage
  • Green IT, Transitions from carbon focus to economic with efficiency enabling productivity
  • FCoE, Continues to evolve and mature with more deployments however still not at tipping point
  • SSD, Flash based mediums continue to evolve however tipping point is still over the horizon
  • IOV, I/O Virtualization for both virtual and non virtual servers
  • Other new or recycled buzzword bingo candidates include PCoIP, 4G,

RAID will again be pronounced as being dead no longer relevant yet being found in more diverse deployments from consumer to the enterprise. In other words, RAID may be boring and thus no longer relevant to talk about, yet it is being used everywhere and enhanced in evolutionary ways, perhaps for some even revolutionary.

Tape remains being declared dead (e.g. on the Zombie technology list) yet being enhanced, purchased and utilized at higher rates with more data stored than in past history. Instead of being killed off by the disk drive, tape is being kept around for both traditional uses as well as taking on new roles where it is best suited such as long term or bulk off-line storage of data in ultra dense and energy efficient not to mention economical manners.

What I am seeing and hearing is that customers using tape are able to reduce the number of drives or transports, yet due to leveraging disk buffers or caches including from VTL and dedupe devices, they are able to operate their devices at higher utilization, thus requiring fewer devices with more data stored on media than in the past.

Likewise, even though I have been a fan of SSD for about 20 years and am bullish on its continued adoption, I do not see SSD killing off the spinning disk drive anytime soon. Disk drives are helping tape take on this new role by being a buffer or cache in the form of VTLs, disk based backup and bulk storage enhanced with compression, dedupe, thin provision and replication among other functionality.

There you have it, my predictions, observations and perspectives for 2010 and 2011. It is a broad and diverse list however I also get asked about and see a lot of different technologies, techniques and trends tied to IT resources (servers, storage, I/O and networks, hardware, software and services).

Lets see how they play out.

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

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RAID Relevance Revisited

Following up from some previous posts on the topic, a continued discussion point in the data storage industry is the relevance (or lack there) of RAID (Redundant Array of Independent Disks).

These discussions tend to evolve around how RAID is dead due to its lack of real or perceived ability to continue scaling in terms of performance, availability, capacity, economies or energy capabilities needed or when compared to those of newer techniques, technologies or products.

RAID Relevance

While there are many new and evolving approaches to protecting data in addition to maintaining availability or accessibility to information, RAID despite the fan fare is far from being dead at least on the technology front.

Sure, there are issues or challenges that require continued investing in RAID as has been the case over the past 20 years; however those will also be addressed on a go forward basis via continued innovation and evolution along with riding technology improvement curves.

Now from a marketing standpoint, ok, I can see where the RAID story is dead, boring, and something new and shiny is needed, or, at least change the pitch to sound like something new.

Consequently, when being long in the tooth and with some of the fore mentioned items among others, older technologies that may be boring or lack sizzle or marketing dollars can and often are declared dead on the buzzword bingo circuit. After all, how long now has the industry trade group RAID Advisory Board (RAB) been missing in action, retired, spun down, archived or ILMed?

RAID remains relevant because like other dead or zombie technologies it has reached the plateau of productivity and profitability. That success is also something that emerging technologies envy as their future domain and thus a classic marketing move is to declare the incumbent dead.

The reality is that RAID in all of its various instances from hardware to software, standard to non-standard with extensions is very much alive from the largest enterprise to the SMB to the SOHO down into consumer products and all points in between.

Now candidly, like any technology that is about 20 years old if not older after all, the disk drive is over 50 years old and been declared dead for how long now?.RAID in some ways is long in the tooth and there are certainly issues to be addressed as have been taken care of in the past. Some of these include the overhead of rebuilding large capacity 1TB, 2TB and even larger disk drives in the not so distant future.

There are also issues pertaining to distributed data protection in support of cloud, virtualized or other solutions that need to be addressed. In fact, go way way back to when RAID appeared commercially on the scene in the late 80s and one of the value propositions among others was to address the reliability of emerging large capacity multi MByte sized SCSI disk drives. It seems almost laughable today that when a decade later, when the 1GB disk drives appeared in the market back in the 90s that there was renewed concern about RAID and disk drive rebuild times.

Rest assured, I think that there is a need and plenty of room for continued innovate evolution around RAID related technologies and their associated storage systems or packaging on a go forward basis.

What I find interesting is that some of the issues facing RAID today are similar to those of a decade ago for example having to deal with large capacity disk drive rebuild, distributed data protecting and availability, performance, ease of use and so the list goes.

However what happened was that vendors continued to innovate both in terms of basic performance accelerated rebuild rates with improvements to rebuild algorithms, leveraged faster processors, busses and other techniques. In addition, vendors continued to innovate in terms of new functionality including adopting RAID 6 which for the better part of a decade outside of a few niche vendors languished as one of those future technologies that probably nobody would ever adopt, however we know that to be different now and for the past several years. RAID 6 is one of those areas where vendors who do not have it are either adding it, enhancing it, or telling you why you do not need it or why it is no good for you.

An example of how RAID 6 is being enhanced is boosting performance on normal read and write operations along with acceleration of performance during disk rebuild. Also tied to RAID 6 and disk drive rebuild are improvements in controller design to detect and proactively make repairs on the fly to minimize or eliminate errors or diminished the need for drive rebuilds, similar to what was done in previous generations. Lets also not forget the improvements in disk drives boosting performance, availability, capacity and energy improvements over time.

Funny how these and other enhancements are similar to those made to RAID controllers hardware and software fine tuning them in the early to mid 2000s in support for high capacity SATA disk drives that had different RAS characteristics of higher performance lower capacity enterprise drives.

Here is my point.

RAID to some may be dead while others continue to rely on it. Meanwhile others are working on enhancing technologies for future generations of storage systems and application requirements. Thus in different shapes, forms, configurations, feature; functionality or packaging, the spirit of RAID is very much alive and well remaining relevant.

Regardless of if a solution using two or three disk mirroring for availability, or RAID 0 fast SSD or SAS or FC disks in a stripe configuration for performance with data protection via rapid restoration from some other low cost medium (perhaps RAID 6 or tape), or perhaps single, dual or triple parity protection, or if using small block or multiMByte or volume based chunklets, let alone if it is hardware or software based, local or disturbed, standard or non standard, chances are there is some theme of RAID involved.

Granted, you do not have to call it RAID if you prefer!

As a closing thought, if RAID were no longer relevant, than why do the post RAID, next generation, life beyond RAID or whatever you prefer to call them technologies need to tie themselves to the themes of RAID? Simple, RAID is still relevant in some shape or form to different audiences as well as it is a great way of stimulating discussion or debate in a constantly evolving industry.

BTW, Im still waiting for the revolutionary piece of hardware that does not require software, and the software that does not require hardware and that includes playing games with server less servers using hypervisors :) .

Provide your perspective on RAID and its relevance in the following poll.

Here are some additional related and relevant RAID links of interests:

Stay tuned for more about RAIDs relevance as I dont think we have heard the last on this.

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

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Upcoming Events and Activities Update V2010.1

The end of year christmas and new years holiday season has come and gone which means of course that 2009 is a wrap along with the travel from being out and about.

In addition to getting some time to relax a bit (playing Wii resort, snow plowing, cooking etc.), I have also been catching up on developing some new content including articles, blogs (some yet to be post), tips as well as podcasts along with some custom research advisory projects.

Check out some recent tips, articles, videos and podcasts here along with perspecitives and comments on indusitry news here.

2009 events and activities saw visits to cities including San Jose, Tucson, Cancun Mexico, Dallas, Tampa, Miami, Los Angles, San Jose, Las Vegas, Milwaukee, Atlanta, St. Louis, Birmingham, Cincinnati, Santa Ana, Minneapolis, Boston, Dallas, Boston, Chicago, Parsipanny, Raleigh, Providence, Kansas City, Denver, Chicago, Orlando, Chicago, Philadelphia, Toronto, Richmond, Columbus, Princeton, Seattle, Portland, Dallas, San Francisco, Minneapolis, Toronto, Chicago, New York, Milwaukee, Atlanta, Boston, Cleveland and Detroit among others.

This time of the year also means that the 2010 events and activities including in person keynote and presentations also known as out and about are getting underway. While the 2010 schedule of events is still being finalized, some initial events have are on the calendar, my bags are about to be packed and tickets in hand not to mention finalizing the presentation and discussion content.

In addition to some non public events including keynote presenting at some vendors annual sales (kick off) meetings, the following are some of what are currently on the calendar that you can click on the links below to learn more about the venues.

February 3, 2010 Green Data Center Conference, San Diego, CA
January 21, 2010 Dinner Event keynote Speaker Dynamic IT Infrastructure, Beverly Hills, CA
January 21, 2010 Morning keynote Speaker The Green and Virtual Data Center, San Diego, CA
January 19, 2010 Dinner Event keynote Speaker Dynamic IT Infrastructure, Miami, FL

Watch for updates to the events calendar and I look forward to seeing you all while Im out and about during 2010.

Ok, nuff said.

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

All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2012 StorageIO and UnlimitedIO All Rights Reserved

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StorageIO in the News Update V2010.1

StorageIO is regularly quoted and interviewed in various industry and vertical market venues and publications both on-line and in print on a global basis.

The following are some coverage, perspectives and commentary by StorageIO on IT industry trends including servers, storage, I/O networking, hardware, software, services, virtualization, cloud, cluster, grid, SSD, data protection, Green IT and more since the last update.

Realizing that some prefer blogs to webs to twitter to other venues, here are some recent links among others to media coverage and comments by me on a different topics that are among others found at www.storageio.com/news.html:

  • SearchSMBStorage: Comments on EMC Iomega v.Clone for PC data syncronization – Jan 2010
  • Computerworld: Comments on leveraging cloud or online backup – Jan 2010
  • ChannelProSMB: Comments on NAS vs SAN Storage for SMBs – Dec 2009
  • ChannelProSMB: Comments on Affordable SMB Storage Solutions – Dec 2009
  • SearchStorage: Comments on What to buy a geek for the holidays, 2009 edition – Dec 2009
  • SearchStorage: Comments on EMC VMAX storage and 8GFC enhancements – Dec 2009
  • SearchStorage: Comments on Data Footprint Reduction – Dec 2009
  • SearchStorage: Comments on Building a private storage cloud – Dec 2009
  • SearchStorage: Comments on SSD in storage systems – Dec 2009
  • SearchStorage: Comments on slow adoption of file virtualization – Dec 2009
  • IT World: Comments on maximizing data security investments – Nov 2009
  • SearchCIO: Comments on storage virtualization for your organisation – Nov 2009
  • Processor: Comments on how to win approval for hardware upgrades – Nov 2009
  • Processor: Comments on the Future of Servers – Nov 2009
  • SearchITChannel: Comments on Energy-efficient technology sales depend on pitch – Nov 2009
  • SearchStorage: Comments on how to get from Fibre Channel to FCoE – Nov 2009
  • Minneapolis Star Tribune: Comments on Google Wave and Clouds – Nov 2009
  • SearchStorage: Comments on EMC and Cisco alliance – Nov 2009
  • SearchStorage: Comments on HP virtualizaiton enhancements – Nov 2009
  • SearchStorage: Comments on Apple canceling ZFS project – Oct 2009
  • Processor: Comments on EPA Energy Star for Server and Storage Ratings – Oct 2009
  • IT World Canada: Cloud computing, dot be scared, look before you leap – Oct 2009
  • IT World: Comments on stretching your data protection and security dollar – Oct 2009
  • Enterprise Storage Forum: Comments about Fragmentation and Performance? – Oct 2009
  • SearchStorage: Comments about data migration – Oct 2009
  • SearchStorage: Comments about What’s inside internal storage clouds? – Oct 2009
  • Enterprise Storage Forum: Comments about T-Mobile and Clouds? – Oct 2009
  • Storage Monkeys: Podcast comments about Sun and Oracle- Sep 2009
  • Enterprise Storage Forum: Comments on Maxiscale clustered, cloud NAS – Sep 2009
  • SearchStorage: Comments on Maxiscale clustered NAS for web hosting – Sep 2009
  • Enterprise Storage Forum: Comments on whos hot in data storage industry – Sep 2009
  • SearchSMBStorage: Comments on SMB Fibre Channel switch options – Sep 2009
  • SearchStorage: Comments on using storage more efficiently – Sep 2009
  • SearchStorage: Comments on Data and Storage Tiering including SSD – Sep 2009
  • Enterprise IT Planet: Comments on Data Deduplication – Sep 2009
  • SearchDataCenter: Comments on Tiered Storage – Sep 2009
  • Enterprise Storage Forum: Comments on Sun-Oracle Wedding – Aug 2009
  • Processor.com: Comments on Storage Network Snags – Aug 2009
  • SearchStorageChannel: Comments on I/O virtualizaiton (IOV) – Aug 2009
  • SearchStorage: Comments on Clustered NAS storage and virtualization – Aug 2009
  • SearchITChannel: Comments on Solid-state drive prices still hinder adoption – Aug 2009

    • Check out the Content, Tips, Tools, Videos, Podcasts plus White Papers, and News pages for additional commentary, coverage and related content or events.

    Ok, nuff said.

    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

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2012 StorageIO and UnlimitedIO All Rights Reserved

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    Recent tips, videos, articles and more update V2010.1

    Realizing that some prefer blogs to webs to twitter to other venues, here are some recent links to articles, tips, videos, webcasts and other content that have appeared in different venues since August 2009.

  • i365 Guest Interview: Experts Corner: Q&A with Greg Schulz December 2009

  • SearchCIO Midmarket: Remote-location disaster recovery risks and solutions December 2009

  • BizTech Magazine: High Availability: A Delicate Balancing Act November 2009

  • ESJ: What Comprises a Green, Efficient and Effective Virtual Data Center? November 2009

  • SearchSMBStorage: Determining what server to use for SMB November 2009

  • SearchStorage: Performance metrics: Evaluating your data storage efficiency October 2009

  • SearchStorage: Optimizing capacity and performance to reduce data footprint October 2009

  • SearchSMBStorage: How often should I conduct a disaster recovery (DR) test? October 2009

  • SearchStorage: Addressing storage performance bottlenecks in storage September 2009

  • SearchStorage AU: Is tape the right backup medium for smaller businesses? August 2009

  • ITworld: The new green data center: From energy avoidance to energy efficiency August 2009

    • Video and podcasts include:
    December 2009 Video: Green Storage: Metrics and measurement for management insight
    Discussion between Greg Schulz and Mark Lewis of TechTarget the importance of metrics and measurement to gauge productivity and efficiency for Green IT and enabling virtual information factories. Click here to watch the Video.

    December 2009 Podcast: iSCSI SANs can be a good fit for SMB storage
    Discussion between Greg Schulz and Andrew Burton of TechTarget about iSCSI and other related technologies for SMB storage. Click here to listen to the podcast.

    December 2009 Podcast: RAID Data Protection Discussion
    Discussion between Greg Schulz and Andrew Burton of TechTarget about RAID data proteciton, techniques and technologies. Click here to listen to the podcast.

    December 2009 Podcast: Green IT, Effiency and Productivity Discussion
    Discussion between Greg Schulz and Jon Flower of Adaptec about data Green IT, energy effiency, inteligent power management (IPM) also known as MAID 2.0 and other forms of optimization techniques including SSD. Click here to listen to the podcast sponsored by Adaptec.

    November 2009 Podcast: Reducing your data footprint impact
    Even though many enterprise data storage environments are coping with tightened budgets and reduced spending, overall net storage capacity is increasing. In this interview, Greg Schulz, founder and senior analyst at StorageIO Group, discusses how storage managers can reduce their data footprint. Schulz touches on the importance of managing your data footprint on both online and offline storage, as well as the various tools for doing so, including data archiving, thin provisioning and data deduplication. Click here to listen to the podcast.

    October 2009 Podcast: Enterprise data storage technologies rise from the dead
    In this interview, Greg Schulz, founder and senior analyst of the Storage I/O group, classifies popular technologies such as solid-state drives (SSDs), RAID and Fibre Channel (FC) as “zombie” technologies. Why? These are already set to become part of standard storage infrastructures, says Schulz, and are too old to be considered fresh. But while some consider these technologies to be stale, users should expect to see them in their everyday lives. Click here to listen to the podcast.

    Check out the Tips, Tools and White Papers, and News pages for additional commentary, coverage and related content or events.

    Ok, nuff said.

    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

    All Comments, (C) and (TM) belong to their owners/posters, Other content (C) Copyright 2006-2012 StorageIO and UnlimitedIO All Rights Reserved

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    What do NAS NASA NASCAR have in common?

    What do NAS NASA NASCAR have in common?

    server storage I/O data infrastructure trends

    Updated 2/10/2018

    The other day it dawned on me what do NAS, NASA NASCAR have in common?

    Several things in addition to all starting with the letters NAS it turns out.

    For example, they all deal with round objects, NAS or Network Attached storage involved with circular spinning disk drives, NASA or National Aeronautical Space Administration besides involved with aircraft that have tires that go round and round, or airplanes circling waiting for landing.

    In the case of NASA they are also involved with sending craft or devices to circle other planets or moons and land or crash into them. Sometimes NAS along with other storage systems have disk drives that crash, similar to how NASCAR events see accidents.
    NAS

    Ceder Lake 3M NASCAR at dirt track - Photo (C) 2008 Karen Schulz all rights reserved

    Ceder Lake dirt track 3M NASCAR night (Photo (C) 2008 Karen Schulz)

    NASCAR is also involved with vehicles that dont or at least should not fly, however they do go round and round on a track, often paved however sometimes mud or dirt tracks plus high tech exists with computers and various data models, not to mention the NASCAR air force.

    In addition to being involved with round objects and activities, all three are also involved in computing, generating, processing, storing and retrieving for analysis of data, not to mention high performance requirements.

    NAS based storage can also be relied upon for serving the needs of NASA and NASCAR data and informational needs.

    And FWIW, just for fun, look at what you get when you spell NAS, NASA or NASCAR backwards:

    RACSAN
    ASAN
    SAN

    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

    Not much actually other than to stimulate some thought, discussion as well as perhaps have some fun with technology during the holiday season.

    Im sure if I put some more thought to it, more similarities would or will come to mind.

    However, for now, thats it for a quick thought, what similarities do you see or know about with NAS, NASA and NASCAR?

    Ok, nuf fun for now, time to work on some other posts, content and projects.

    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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    EMC Storage and Management Software Getting FAST

    EMC has announced the availability of the first phase of FAST (Fully Automated Storage Tiering) functionality for their Symmetrix VMAX, CLARiiON and Celerra storage systems.

    FAST was first previewed earlier this year (see here and here).

    Key themes of FAST are to leverage policies for enabling automation to support large scale environments, doing more with what you have along with enabling virtual data centers for traditional, private and public clouds as well as enhancing IT economics.

    This means enabling performance and capacity planning analysis along with facilitating load balancing or other infrastructure optimization activities to boost productivity, efficiency and resource usage effectiveness not to mention enabling Green IT.

    Is FAST revolutionary? That will depend on who you talk or listen to.

    Some vendors will jump up and down similar to donkey in shrek wanting to be picked or noticed claiming to have been the first to implement LUN or file movement inside of storage systems, or, as operating system or file system or volume manager built in. Others will claim to have done it via third party information lifecycle management (ILM) software including hierarchal storage management (HSM) tools among others. Ok, fair enough, than let their games begin (or continue) and I will leave it up to the variou vendors and their followings to debate whos got what or not.

    BTW, anyone remember system manage storage on IBM mainframes or array based movement in HP AutoRAID among others?

    Vendors have also in the past provided built in or third party add on tools for providing insight and awareness ranging from capacity or space usage and allocation storage resource management (SRM) tools, performance advisory activity monitors or charge back among others. For example, hot files analysis and reporting tool have been popular in the past, often operating system specific for identifying candidate files for placement on SSD or other fast storage. Granted the tools provided insight and awareness, there was still the time and error prone task of decision making and subsequently data movement, not to mention associated down time.

    What is new here with FAST is the integrated approach, tools that are operating system independent, functionality in the array, available for different product family and price bands as well as that are optimized for improving user and IT productivity in medium to high-end enterprise scale environments.

    One of the knocks on previous technology is either the performance impact to an application when data was moved, or, impact to other applications when data is being moved in the background. Another issue has been avoiding excessive thrashing due to data being moved at the expense of taking performance cycles from production applications. This would also be similar to having too many snapshots or raid rebuild that are not optimized running in the background on a storage system lacking sufficient performance capability. Another knock has been that historically, either 3rd party host or appliance based software was needed, or, solutions were designed and targeted for workgroup, departmental or small environments.

    What is FAST and how is it implemented
    FAST is technology for moving data within storage systems (and external for Celerra) for load balancing, capacity and performance optimization to meet quality of service (QoS) performance, availability, capacity along with energy and economic initiatives (figure1) across different tiers or types of storage devices. For example, moving data from slower SATA disks where a performance bottleneck exists to faster Fibre Channel or SSD devices. Similarly, cold or infrequently data on faster more expensive storage devices can be marked as candidates for migration to lower cost SATA devices based on customer policies.

    EMC FAST
    Figure 1 FAST big picture Source EMC

    The premise is that policies are defined based on activity along with capacity to determine when data becomes a candidate for movement. All movement is performed in the background concurrently while applications are accessing data without disruptions. This means that there are no stub files or application pause or timeouts that occur or erratic I/O activity while data is being migrated. Another aspect of FAST data movement which is performed in the actual storage systems by their respective controllers is the ability for EMC management tools to identify hot or active LUNs or volumes (files in the case of Celerra) as candidates for moving (figure 2).

    EMC FAST
    Figure 2 FAST what it does Source EMC

    However, users specify if they want data moved on its own or under supervision enabling a deterministic environment where the storage system and associated management tools makes recommendations and suggestions for administrators to approve before migration occurs. This capacity can be a safeguard as well as a learn mode enabling organizations to become comfortable with the technology along with its recommendations while applying knowledge of current business dynamics (figure 3).

    EMC FAST
    Figure 3 The Value proposition of FAST Source EMC

    FAST is implemented as technology resident or embedded in the EMC VMAX (aka Symmetrix), CLARiiON and Cellera along with external management software tools. In the case of the block (figure 4) storage systems including DMX/VMAX and CLARiiON family of products that support FAST, data movement is on a LUN or volume basis and within a single storage system. For NAS or file based Cellera storage systems, FAST is implanted using FMA technology enabling either in the box or externally to other storage systems on a file basis.

    EMC FAST
    Figure 4 Example of FAST activity Source EMC

    What this means is that data at the LUN or volume level can be moved across different tiers of storage or disk drives within a CLARiiON instance, or, within a VMAX instance (e.g. amongst the nodes). For example, Virtual LUNs are a building block that is leveraged for data movement and migration combined with external management tools including Navisphere for the CLARiiON and Symmetrix management console along with Ionix all of which has been enhanced.

    Note however that initially data is not moved externally between different CLARiiONs or VMAX systems. For external data movement, other existing EMC tools would be deployed. In the case of Celerra, files can be moved within a specific CLARiiON as well as externally across other storage systems. External storage systems that files can be moved across using EMC FMA technology includes other Celleras, Centera and ATMOS solutions based upon defined policies.

    What do I like most and why?

    Integration of management tools providing insight with ability for user to setup polices as well as approve or intercede with data movement and placement as their specific philosophies dictate. This is key, for those who want to, let the system manage it self with your supervision of course. For those who prefer to take their time, then take simple steps by using the solution for initially providing insight into hot or cold spots and then helping to make decisions on what changes to make. Use the solution and adapt it to your specific environment and philosophy approach, what a concept, a tool that works for you, vs you working for it.

    What dont I like and why?

    There is and will remain some confusion about intra and inter box or system data movement and migration, operations that can be done by other EMC technology today for those who need it. For example I have had questions asking if FAST is nothing more than EMC Invista or some other data mover appliance sitting in front of Symmetrix or CLARiiONs and the answer is NO. Thus EMC will need to articulate that FAST is both an umbrella term as well as a product feature set combining the storage system along with associated management tools unique to each of the different storage systems. In addition, there will be confusion at least with GA of lack of support for Symmetrix DMX vs supported VMAX. Of course with EMC pricing is always a question so lets see how this plays out in the market with customer acceptance.

    What about the others?

    Certainly some will jump up and down claiming ratification of their visions welcoming EMC to the game while forgetting that there were others before them. However, it can also be said that EMC like others who have had LUN and volume movement or cloning capabilities for large scale solutions are taking the next step. Thus I would expect other vendors to continue movement in the same direction with their own unique spin and approach. For others who have in the past made automated tiering their marketing differentiation, I would suggest they come up with some new spins and stories as those functions are about to become table stakes or common feature functionality on a go forward basis.

    When and where to use?

    In theory, anyone with a Symmetrix/VMAX, CLARiiON or Celerra that supports the new functionality should be a candidate for the capabilities, that is, at least the insight, analysis, monitoring and situation awareness capabilities Note that does not mean actually enabling the automated movement initially.

    While the concept is to enable automated system managed storage (Hmmm, Mainframe DejaVu anyone), for those who want to walk before they run, enabling the insight and awareness capabilities can provide valuable information about how resources are being used. The next step would then to look at the recommendations of the tools, and if you concur with the recommendations, then take remedial action by telling the system when the movement can occur at your desired time.

    For those ready to run, then let it rip and take off as FAST as you want. In either situation, look at FAST for providing insight and situational awareness of hot and cold storage, where opportunities exist for optimizing and gaining efficiency in how resources are used, all important aspects for enabling a Green and Virtual Data Center not to mention as well as supporting public and private clouds.

    FYI, FTC Disclosure and FWIW

    I have done content related projects for EMC in the past (see here), they are not currently a client nor have they sponsored, underwritten, influenced, renumerated, utilize third party off shore swiss, cayman or south american unnumbered bank accounts, or provided any other reimbursement for this post, however I did personally sign and hand to Joe Tucci a copy of my book The Green and Virtual Data Center (CRC) ;).

    Bottom line

    Do I like what EMC is doing with FAST and this approach? Yes.

    Do I think there is room for improvement and additional enhancements? Absolutely!

    Whats my recommendation? Have a look, do your homework, due diligence and see if its applicable to your environment while asking others vendors what they will be doing (under NDA if needed).

    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

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    SSD and Storage System Performance

    Jacob Gsoedl has a new article over at SearchStorage titled How to add solidstate storage to your enterprise data storage systems.

    In his article which includes some commentary by me, Jacob lays out various options on where and how to deploy solid state devices (SSD) in and with enterprise storage systems.

    While many vendors have jumped on the latest SSD bandwagon adding flash based devices to storage systems, where and how they implement the technologies varies.

    Some vendors take a simplistic approach of qualify flash SSD devices for attachment to their storage controllers similar to how any other Fibre Channel, SAS or SATA hard disk drive (HDD) would be.

    Yet others take a more in depth approach including optimizing controller software, firmware or micro code to leverage flash SSD devices along with addressing wear leveling, read and write performance among other capabilities.

    Performance is another area where on paper a flash SSD device might appear to be fast and enable a storage system to be faster.

    However, systems that are not optimized for higher throughput and or increased IOPs needing lower latency may end up placing restrictions on the number of flash SSD devices or other configuration constraints. Even worse is when expected performance improvements are not realized as after all, fast controllers need fast devices, and fast devices need fast controllers.

    RAM and flash based SSD are great enabling technologies for boosting performance, productivity and enabling a green efficient environment however do your homework.

    Look at how various vendors implement and support SSD particularly flash based products with enhancements to storage controllers for optimal performance.

    Likewise check out the activity of  the SNIA Solid State Storage Initiative (SSSI) among other industry trade group or vendor initiatives around enhancing along with best practices for SSD.

    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

    Posted on

    Poll: EMC and Cisco Acadia VCE, what does it mean?

    EMC and Cisco recently announced their new Acadia VCE coalition along with Intel and VMware.

    As part of the VCE the collation or joint venture is also providing to market pre-acted vblocks that include Cisco servers power by Intel and network switches, EMC storage and management tools (Inonx and RSA for security), VMware vsphere virtualization along with pre-post sales services.

    How does this move from a technology, packaging, integration as well as business or alliance perspective change the server, storage, networking, hardware, software and services game?

    Whats your take?

    Cheers gs

    Greg Schulz – StorageIO, Author “The Green and Virtual Data Center” (CRC)