Well, it is Halloween back in the USA. I am in Seoul Korea this week, so it is already Thursday, November 1st here, but thought I would comment on Colin Barker's piece in ZDnet titled[SNW offers the frights].The article starts out with an oversimplification:
The storage industry is enjoying a boom currently thanks to the requirement for IT managers to keep everything. With the possibility of being sued any time by any company for no good reason at all, everyone is keeping everything, or at least all their data. Result? Loads and loads more kit being bought to the benefit of EMC, IBM, HP and every other supplier with any kind of storage product.
While its true that IBM System Storage grew yet again in 3Q07, exceeding our own internal business model, I would not call this an overall "boom" for the storage industry. While companies are growing in "TB capacity" by 30-50%, this translates only to single digit growth in terms of "Dollar revenues". This is because we continue to make storage with declining dollar-per-GB.
One should not confuse what people do with what people are required to do. I am not a lawyer, but most regulations pertaining to storage of information state that certain records need to be kept for a set amount of time, either a fixed period of years, or based on some event. For example, broker/dealers need to keep emails of their clients for six years after the client closes their brokerage account. After those six years, the records can be destroyed.
Unfortunately, many IT managers look at the laws and come up with the simplest solution: keep everything forever. While this might meet the regulators audit requirements, it does expose their employer to subpoenas for data that should have been deleted, and may not be very cost-effective.
The alternative for many IT managers involves having to leave their comfort zone, and talk to their legal counsel, the lines of business, and try to classify their data, determine a set of policies, and inact some forms of enforcement. This is perhaps the "scary" part of the storage of information, it has grown outside the walls of IT, forcing IT managers to interact with the rest of the business to get their jobs done.
Compliance is the only game in town and that is most certainly where the money is.
Anytime an analyst tells you that something is the "only game in town", they are usually wrong. In this case, IBM has had great success in other areas that are not compliance-related. For example, digital video surveillance (DVS) is being used not only to help reduce shoplifting, but also to help identify patterns in customers perusing through aisles and window-shopping. Identifying what people are interested in has proven effective in moving product displays around to better attract buyers and motivate them to make purchases.
Take, the keynote from Andy Monshaw, general manager of IBM storage, and thus a man who is very much in a position to know. He spent his allotted 30 minutes, or whatever, listing all the security, compliance, threats and related issues that are currently making the jobs of most IT manager a cause for concern. Now, there is an argument that suggests that it is absolutely the right thing to do to frighten IT managers into sorting out their issues. They need shaking up say some. Especially analysts.
I helped develop the content of Andy's SNW presentation, working with his speech writers and graphic artists to make a consistent and coherent message fit in the 25 minutes he was given. The challenge with SNW is that we needed to make this presentation applicable across the entire storage industry, without sounding like an infomercial for IBM offerings.
Some people have compared the storage to the "insurance industry", claiming that backups, remote disk mirroring, continuous data protection and other storage related features are costs that can be compared to insurance you pay to protect your home, business, and other assets. You hope you never have to use it, and complain how much it costs, but when bad things happen, you hope it is the best money can buy.
Unlike Y2K, which was a one-time event that had a specific date of occurrence, the threats and risks mentioned by Andy in his presentation may never happen at all, or in other cases, may happen more than once, without knowing when or where. For the sake of your shareholders, and your stakeholders, it is best to be prepared for these possibilities.
The counter argument says that IT companies just smell the money.
Is this a counter argument? Can IBM not both help customers mitigate their risks, and at the same time, turn a profit? Trust me, you do not want to do business with any storage vendor that is not interested in making a profit. The better ones have incorporated addressing client's most pressing challenges into their strategy. I gave a quick summary of IBM's strategy last August in [Day 1 Storage Symposium].
Helping our clients mitigate risks is just one of IBM's core strengths. If you want to learn more, contact your local IBM Business Partner or storage rep.Read More]
IBM Edge2013 - Day 0 Arrival and Reception
Well, after seven hours of driving from Tucson, Arizona, I have arrived safely Sunday afternoon in Las Vegas, Nevada, for this week's [IBM Edge 2013 conference]!
Why drive? So that I could check out the [Mike O'Callaghan -- Pat Tillman Memorial Bridge] at [Hoover Dam]! The bridge is named after a Nevadan (O'Callaghan) and an Arizonan (Tillman) who both died recently after public service to this country.
Besides, I have been in airplanes and airports nearly every week since March 1, so driving to Las Vegas was a pleasent alternative.
While driving to Las Vegas was pleasant, driving in Las Vegas was not. I would go crazy as a taxi driver here! I think I will leave my car in the free parking garage all week, and limit myself mostly to the Mandalay Hotel where the conference is being held, and only venture out to other hotels that are walking distance, like the Luxor next door.
In the evening, IBM hosted some of the industry's top analysts and press at an invitation-only reception. Several other IBMers were there, including Barry Whyte, Steve Kenniston, Nicki Rich and Ron Riffe. This event was organized by IBM Analyst Relations, including David Rasmussen and Leanna Holmquist.
Ron mentioned my penchant for taking pictures with other people and posting them on my blog, so I am glad that Leanna volunteered to take a picture with me for my first post of the week!
I would also like to mention that Ron Riffe has joined the ranks of storage bloggers. His blog is called [The Line]. Here is Ron's post on his "Day 0" observations here at Edge: [Rainy Days and Sunshine].
Continuing this week's theme on [New Year's Resolutions for losing weight and getting fit], I will focus this post on diet.
(Note: I am neither a medical doctor nor registered dietician. I can share with you ideas that have worked for me (or people I know) that might help you achieve your goals. I strongly suggest you read books and consult with medical experts as necessary.)
The problem is that most people think of dieting as something you do temporarily. People decide to lose weight, go on a diet, reach their target goal weight, go back to their previous ways, and gain the weight back.
The word Diet comes from the Greek language and means "way of life". Every day that food enters your mouth, you are on a diet. People aren't on or off a diet, but rather switch from one diet to another. The trick is to find a healthy diet that you can live with the rest of your life, so your weight doesn't go up and down.
Most health experts agree that the [Western pattern diet], typical in the United States and other developed countries, is [certainly not healthy]. Washing down that bologna-and-cheese on white bread sandwich with a 44-ounce high-fructose soft drink hasn't served Americans well. This combination of processed meats, refined grains, dairy, and sugar-laden foods has shown to cause obesity and other health problems.
Physicians at Cornell University found that [men take better care of their cars than their bodies]. If you tell a guy that his car takes 12 gallons of high-octane gasoline, 5 quarts of 5W-30 oil, and a 50/50 mix of water and anti-freeze, he would totally understand what you mean.
But tell that same guy that his diet must consist of an appropriate ratio of complete proteins, monounsaturated fats, and carbs with a low glycemic index, and he will scratch his head. Aren't calories just calories?
Unlike a car, where the gasoline, oil and anti-freeze get poured into different openings into fixed metal containers, the human body takes in all of the things it needs in one opening, your mouth, and receives it into a stretchable container, your belly. While carbs are just converted to fuel, the proteins and fats have actual functions and bring building blocks that cannot be built from just carbs alone.
There is some dispute and controversy on exactly what is an ideal diet. This can be partly attributable to articles that report findings from observational studies, rather than from double-blind clinical studies. To understand the difference, I suggest you watch Tom Naughton present [Science for Smart People] in this amusing 46-minute video.
Over the past few years, I have tried out several different diets, to figure out which one is best for me. I'll save those details for my next post.
technorati tags: Tom Naughton
Well, it's the last day of the year, and I will be celebrating the new year soon.In the mean time, I leave you with an interesting triple combo related to information.
Well, that's it for 2007, see you all next year!
technorati tags: Nick Carr, Information, Knowledge, Authority, Democracy, Hunter Rawlings, Thomas Jefferson, James Madison, Library of Congress, Tim Ferriss, crowdsourcing, Stumbled Upon, Del.icio.us, collaborative filtering, Wisdom of Crowds, A Copyright Carol, Canadian, DMCA,[Read More]
This Doonesbury cartoonabout Second Life reminded me about our September 20 event.
Registration for the "Meet the Storage Experts" event in Second Life will close this week fornext week's September 20 event. All IBMers, clients and IBM Business Partners are welcome to attend. We will focus this time on DS3000 and N series disk systems, tape systems,and IBM storage networking gear.
If you miss this one, we plan to have another one in November!Read More]
I'm continuing my coverage of IBM Systems Journal's [fifteen articles about IBM Service Management].As storage hardware cost per GB declines 25 percent per year, the cost of labor has grown to nearly 70percent of the total IT budget. This brings new focus on how we do things, rather than what things siton the raised floor. Yesterday, my post summarized[the first five articles].Here is what I got out of the next five articles:
You can read all the articles in their entirety online [IBM Systems Journal, Volume 46, No. 3].Read More]
Wrapping up my coverage of the of the [IBM Edge 2013] conference, I have some photos of people I ran into at the Solutions Center.
Leslie Hattig and Lisa Stone, both account managers for [MarkIII Systems], an IBM Business Partner located in Houston, TX. These ladies are inseparable BFFs, I have never seen one without the other! I first met them at the [Storage Symposium in Chicago] back in 2009.
Stacy Tabor was our Community Manager for the [Storage Community]. This community covers IT Storage challenges, hot topics, architecture and solutions. You'll find industry news, videos, blog discussion threads on timely topics, exclusive analyst white papers and experts opinions. I am a frequent contributor, myself, and thank Stacy for her past service. She helped run a "Social Media Hour" at Edge for all the bloggers like me to get to meet each other.
I could not resist getting a picture with this Las Vegas Cirque du Soleil] dancer. This was an invitation-only event, sponsored by IBM Business Partners, that I was invited to during the Social Media Hour. (See, it pays to be social!) I think the visual effects of the flag she was waving turned out really well in the picture! And yes, in case you are wondering, that is my favorite grape-flavored beverage (GFB) in my left hand. Posing for this picture was quite the balancing act, but then I am also a certified yoga instructor, so I was able to manage!
Tanaz Sowdagar is an IBM Storage Rep for our Business Development Team. This includes finding other companies to OEM our technology and re-brand it under their own names. I have worked with Tanaz for many years, helping answer questions that potential OEM parnters have about our products and technologies for this purpose.
This was Michelle, my Conference Room Monitor. Each room had one, scanning the bar-codes on each badge for all the attendees, keeping count of the number of people for each session, supporting anything the speaker needs, like getting the A/V guy to come help set up the laptop projector.
Since this was Friday, last day of the conference. I decide to dress casually, consistent with many company's [Casual Friday] dress code policy. I am wearing the "IBM Edge Rocks" tee-shirt given out at the concert and Solutions center the first few nights.
Finally, leaving Las Vegas, I sat next to Mrs. Joey Clark, wife of "Bulldog" Clark of the Utah band [Blammity Blam]. She also sometimes plays violin with the band. She is a newly-wed, and not sure if Joey is her name, or her husband's name. (Joey, if you are out there, and want me to correctly identify you, please write a comment in the section below.)
What I have learned however, is that if a beautiful girl is sitting next to me on the plane, she will either talk to me the entire flight, implying that she is single, or mention within the first 30 seconds of conversation that she is married. Sadly for me, it was the latter.
(We were both flying on to Dallas, TX, whereupon she was going to visit her parents in Florida, and I was on my way to Sao Paulo, Brazil to get stuck there amongst the protesters in what is now called the [V for Vinegar movement], but I will save that for another blog post!)
Well, that wraps up my coverage of Edge 2013. I am sorry it took so many months to cover all the material, but I did not want to have it go uncovered much longer.
Next year's [Edge 2014] is expected to be bigger and better. It will in Las Vegas again, but this time at the Venetian Hotel, May 19-23, 2014. I plan to be there!
technorati tags: #IBMedge, Leslie Hattig, Lisa Stone, MarkIII Systems, Storage Symposium, Storage Community, Stacy Tabor, Cirque du Soleil, GFB, OEM, Tanaz Sowdagar, Casual Friday, Joey Clark, Blammity Blam, V for Vinegar
Rich Bourdeau has written a nice article on InfoStor titled [Software as a Service (SaaS) meets Storage]. Last year, IBM acquired Arsenal Digital, and he mentions both in this article.It is interesting how this has evolved over the years.
I've talked to several customers who have taken up the bad habit of keeping their backup copiesfor several years for "compliance reasons".
In my post last year [Lost In Translation], I talked about the different meanings of archive:
In explaining the word "archive" we came up with two separate Japanese words. One was "katazukeru", and the other was "shimau". If you are clearing the dinner plates from the table after your meal, for example, it could be done for two reasons. Both words mean "to put away", but the motivation that drives this activity changes the word usage. The first reason, katazukeru, is because the table is important, you need the table to be empty or less cluttered to use it for something else, perhaps play some card game, work on arts and craft, or pay your bills. The second reason, shimau, is because the plates are important, perhaps they are your best tableware, used only for holidays or special occasions only, and you don't want to risk having them broken. As it turns out, IBM supports both senses of the word archive. We offer "space management" when the space on the table, (or disk or database), is more important, so older low-access data can be moved off to less expensive disk or tape. We also offer "data retention" where the data itself is valuable, and must be kept on WORM or non-erasable, non-rewriteable storage to meet business or government regulatory compliance.
The process of archiving your data from primary disk to alternate storage media can satisfy both motivations.
IBM offers software specifically to help with this archival process.For email archive, IBM offers [IBM CommonStore] for Lotus Domino and MicrosoftExchange. For database archive, including support for various ERP and CRM applications, IBM offers [IBM Optim] from the acquisition of Princeton Softech.
The problems occur when companies, under the excuse of simplification or consolidation, feel they can just usetheir backups as archives. They are taking daily backups of their email repositories and databases, and keepingthese for seven to ten years. But what happens when their legal e-discovery team needs to find all emails or database records related to a particular situation, an employee, client or account? Good luck! Most backupsare not indexed for this purpose, so storage admins are stuck restoring many different backups to temporary storage and combing through the files in hopes to find the right data.
Backups are intended for operational recovery of data that is lost or corrupted as a result of hardware failures, application defects, or human error. Disk mirroring or remote replication might help with hardware failures, but any logical deletion or corruption of data is immediately duplicated, so it is not a complete solution. FlashCopy or Snapshot point-in-time copies are useful to go back a short time to recover from logical failures, but since they are usually on the same hardware as the original copies, may not protect against hardware failures. And then there's tape, and while many people malign tape as a backup storage choice, 71 percent of customers send backups to tape, according to a 2007 Forrester Research report.
Backups often aren't viable unless restored to the same hardware platform, with the same operating system and application software to make sense of the ones and zeros. For this reason, people typically only keep two to five backup versions, for no more than 30 days, to support operational recovery scenarios. If you make updatesto your hardware, OS or application software, be sure to remember to take fresh new backups, as the old backupsmay no longer apply.
Archives are different. Often, these are copies that have been "hardened" or "fossilized" so that they make sense even if the original hardware, OS or application software is unavailable. They might be indexed so that they can be searched, so that you only have to retrieve exactly the data you are looking for. Finally, they are often stored with "rendering tools" that are able to display the data using your standard web browser, eliminating the need to have a fully working application environment.
Take any backup you might have from five years ago and try to retrieve the information. Can you do it? This might be a real eye-opener. You might have inherited this back technorati tags: IBM, backup, archive, compliance, katazukeru, shimau, space management, data retention, Forrester Research, disk, tape, FlashCopy, Snapshot, point-in-time, eye-opener, hardened, fossilized, rendering, application environment
technorati tags: IBM, backup, archive, compliance, katazukeru, shimau, space management, data retention, Forrester Research, disk, tape, FlashCopy, Snapshot, point-in-time, eye-opener, hardened, fossilized, rendering, application environment[Read More]
Well, I have left Japan, and while everyone else is enjoying the Super Bowl, I am now in Australia, at another conference.Today I had the pleasure to hear filmmakers talk about their successes, and how IBM helps the movie industry.
Continuing this week's theme on Enterprise Applications, today I will cover Oracle.
IBM is Oracle's number #1 integration partner, and has the leading market share, nearly 40 percent, for IT hardware running Oracle applications. In the coopetition category, Oracle's databases competes against IBM's DB2 database offerings, and Orac To compete against SAP, Oracle has been on a spending spree of acquisitions. This includes PeopleSoft, Siebel, Hyperion, Agile, and JD Edwards.IBM can help with all of these applications, and many clients continue to use IBM DB2 as the underlying database, rather than switching over to Oracle database. For example, IBM has sizing tools to help identify the right amount of servers and storage based on "best practice" experience. Oracle's database uses a number-letter combination. "9i" was Version 9, "i" for Internet. "10g" and "11g" are versions 10 and 11, "g" for Grid. Most of the Oracle customers I deal with are still on 9i or 10g. The 11g releaseis supported on Linux and Windows, with the other platforms to be delivered in a staged approach. Alternatively, most run also on AIX on System p, and Linux/Windows on System x. For System i customers, the Oracle supports its [JD Edwards World] andJD Edwards Enterprise One natively on i5/OS, the other applications can run under an AIX LPAR on an System i server. While some of my readers cringe everytime I mentioned benchmarking, IBM has the top benchmarks for Oracle 10g database, [Oracle e-Business Suite], JD Edwards and PeopleSoft. As with SAP, it is possible with Oracle to run a front-end application on one server platform, and theback-end database on a different server platform. Many of IBM's largest customers run the front-end onAIX or Linux, and then use z/OS on System z for the back-end database. Oracle has implemented a "Scale-Out" approach called Real Application Clusters [RAC],pronounced same as "rack", which I discussed before [Similar Sounding Storage Speech].Several servers can act as an "application cluster" to access a common database. This approachallows customers to use a bunch of x86 servers instead of a bigger System p or System i machine. Additional processor capability can simply be added into the "application cluster" as needed. IBM and Oracle are both staunch proponents of Linux. Oracle offers theirOracle Enterprise Linux support program.In this support program, Oracle will offer support service contracts for Red Hat Enterprise Linux (RHEL) corp To deal with all of their acquisitions, Oracle has announced its Applications Unlimited strategy. Inthis strategy, the Oracle Fusion middleware will support all of Orac technorati tags: IBM, Oracle, SAP, PeopleSoft, JD Edwards, Siebel, Hyperion, Agile, Red Hat, RHEL, 9i, 10g, 11g, z/OS, i5/OS, AIX, Linux, Windows, Oracle Enterprise Linux, Real Application Clusters, RAC, Fusion, Applications Unlimited
To compete against SAP, Oracle has been on a spending spree of acquisitions. This includes PeopleSoft, Siebel, Hyperion, Agile, and JD Edwards.IBM can help with all of these applications, and many clients continue to use IBM DB2 as the underlying database, rather than switching over to Oracle database. For example, IBM has sizing tools to help identify the right amount of servers and storage based on "best practice" experience.
Oracle's database uses a number-letter combination. "9i" was Version 9, "i" for Internet. "10g" and "11g" are versions 10 and 11, "g" for Grid. Most of the Oracle customers I deal with are still on 9i or 10g. The 11g releaseis supported on Linux and Windows, with the other platforms to be delivered in a staged approach.
Alternatively, most run also on AIX on System p, and Linux/Windows on System x. For System i customers, the Oracle supports its [JD Edwards World] andJD Edwards Enterprise One natively on i5/OS, the other applications can run under an AIX LPAR on an System i server. While some of my readers cringe everytime I mentioned benchmarking, IBM has the top benchmarks for Oracle 10g database, [Oracle e-Business Suite], JD Edwards and PeopleSoft. As with SAP, it is possible with Oracle to run a front-end application on one server platform, and theback-end database on a different server platform. Many of IBM's largest customers run the front-end onAIX or Linux, and then use z/OS on System z for the back-end database. Oracle has implemented a "Scale-Out" approach called Real Application Clusters [RAC],pronounced same as "rack", which I discussed before [Similar Sounding Storage Speech].Several servers can act as an "application cluster" to access a common database. This approachallows customers to use a bunch of x86 servers instead of a bigger System p or System i machine. Additional processor capability can simply be added into the "application cluster" as needed. IBM and Oracle are both staunch proponents of Linux. Oracle offers theirOracle Enterprise Linux support program.In this support program, Oracle will offer support service contracts for Red Hat Enterprise Linux (RHEL) corp To deal with all of their acquisitions, Oracle has announced its Applications Unlimited strategy. Inthis strategy, the Oracle Fusion middleware will support all of Orac
While some of my readers cringe everytime I mentioned benchmarking, IBM has the top benchmarks for Oracle 10g database, [Oracle e-Business Suite], JD Edwards and PeopleSoft.
As with SAP, it is possible with Oracle to run a front-end application on one server platform, and theback-end database on a different server platform. Many of IBM's largest customers run the front-end onAIX or Linux, and then use z/OS on System z for the back-end database.
Oracle has implemented a "Scale-Out" approach called Real Application Clusters [RAC],pronounced same as "rack", which I discussed before [Similar Sounding Storage Speech].Several servers can act as an "application cluster" to access a common database. This approachallows customers to use a bunch of x86 servers instead of a bigger System p or System i machine. Additional processor capability can simply be added into the "application cluster" as needed.
IBM and Oracle are both staunch proponents of Linux. Oracle offers theirOracle Enterprise Linux support program.In this support program, Oracle will offer support service contracts for Red Hat Enterprise Linux (RHEL) corp To deal with all of their acquisitions, Oracle has announced its Applications Unlimited strategy. Inthis strategy, the Oracle Fusion middleware will support all of Orac
technorati tags: IBM, Oracle, SAP, PeopleSoft, JD Edwards, Siebel, Hyperion, Agile, Red Hat, RHEL, 9i, 10g, 11g, z/OS, i5/OS, AIX, Linux, Windows, Oracle Enterprise Linux, Real Application Clusters, RAC, Fusion, Applications Unlimited[Read More]
If you're not planning to attend next week's [IBM Storage Symposium in Montpellier] because the "South of France" is too far away, next month IBM will have the [Information on Demand 2008 conference] at the Mandalay Bay Hotelin Las Vegas, Nevada. Featured speakers include [Tom Davenport], [Dr. Irving Wladawsky-Berger], storage management guru [John R Foley], and comedian [Martin Short].
This conference is being hosted by IBM's Software Group, including [IBM Service Management] solutions from our Tivoli brand for managing your server and storage environment.
technorati tags: IBM, storage, symposium, Montpellier, Information on Demand, 2008, conference, Mandalay Bay, Las Vegas, Tom Davenport, Wladawsky-Berger, John Foley, Martin Short, Software Group, IT, service management, Tivoli, registration[Read More]
CNET staff writer Elinor Mills writes how some things in Web 2.0 have morphed, going from killer app to major Web platform.Among the examples are Salesforce.com, Google, Second Life, and Facebook.
Philip Rosedale, chief executive of Linden Labs, which produced the Second Life virtual reality environment, said Second Life and Facebook are popular because they give people a new environment to interact in that they are comfortable with.
Of course I have blogged for months now on my involvement in Second Life, and how IBM is investing in this platform for business purposes. Recently, IBM made news for publishing its Code of Conduct,and set of guidelines on how you run your avatar in virtual worlds, including Second Life. IBM recognizesthe business potential of virtual worlds, and has formed the "3D Internet" group exploring the possibilities.Over 5000 IBM employees now use Second Life on a regular basis.
I was surprised to learn that there were over 23,000 IBMers already on Facebook. I used to be on LinkedIn,but found FaceBook to have more IBMers and have made the switch. Recently, we were told that these 23,000 IBMers spend 19 minutes, on average, per day visiting Facebook pages. Nobody askedme how much time I spend every day on FaceBook, but with over 350,000 employees in the company,I am sure some have ways to track the lives of others.
Both of these count as adding more "FUN" into the workplace, which everyone should strive for. It is also good to know that the skills you developusing Second Life or FaceBook can carry over to your next job role or your next employer.The number-one question I get from new colleagues when I mention either these exciting new ways to communicate and collaborate is: "But how is this related to business?"
Second Life is obvious, a new innovative way to hold meetings with colleagues, Business Partners and clients isgoing to have business value. Meetings in Second Life help you focus on what is being discussed, versus a plaintelephone call where your eyes may wander to other things in your view. Of course nothing beatsthe effectiveness of face-to-face meetings, but Second Life offers a more energy-efficient alternative than traveling to other cities or countries.
I am still fairly new to Facebook, installing and trying out new apps. I found this article that explains12 Ways to Use Facebook Professionally. So far it serves me well as a replacement for LinkedIn,and provides my friends and family a quick answer to Where in the world is Tony Pearson?
What else can these and other Web platfoms do? I am still in the exploratory stages.Read More]
Last week, Paul Weinberg of eChannelLine.com asks Is this the year of the SAN (again)?So, I thought this week I would cover my thoughts and opinions on storage networking. We oftenfocus on servers or storage devices, and forget that the network in between is an entire worldon itself.
I believe Mr. Weinberg is basing this on the idea that in 2007, over 50 percent of disk will beattached over SAN, edging out the alternative: Direct Attached Storage (DAS). But perhaps 50 percentis the wrong number to focus on. In 2007, The United Nations estimates thatcities will surpass rural areas, with just over 50 percent of theworld's population. Does that make this the "Year of the City"? Of course not.
Instead, I prefer to use the methodology that Malcolm Gladwell uses in his book, The Tipping Point.(I have read this book and highly recommend it!)Gladwell indicates that the tipping point happens at the start of the epidemic, not when it is half over.Isn't it better to celebrate the sweet 16 debutante ball when young ladies have completed their years of training and preparation, and are ready to be introduced to the rest of the world, rather than after they are thirty-something, married with children.
Let's explore some of the history. Stuart Kendric has a nice 7-page summary on theHistory & Plumbing of SANs.
IBM announced the first SAN technology calledEnterprise Systems Connection (ESCON) way back in September 1990. This allowed multiplemainframe servers to connect to multiple storage systems over equipment called "ESCON Directors" that directedtraffic from point A to point B. Before this, mainframes sent "ChannelCommand Words" or CCWs, across parallel "bus and tag" copper cables. ESCON was serial overfiber optic wiring. SANs solved two problems: first, it reduced the "rat's nest" of cables between many serversand many storage systems, and second, it extended the distance between server and storage device.
For distributed systems running UNIX or Windows, the CCW-equivalent over parallel cables was called Small ComputerSystem Interface (SCSI). The SCSI command had over 1000 command words, so for its Advanced Technology (AT) personal computers (PC AT), IBM introduced a subset of SCSI commands called ATA (Advanced Technology Attachment). ATA drives supportedfewer commands, ran at slower speeds, and were manufactured with a less rigorous process. Today ATA drives are about 55 percent the cost per MB as comparable SCSI drives.
Anyone who has ever opened their PC and found flat ribbon cable with eight or sixteen wires in parallel, can understand that the same issues applied externally. Parallel technologies arelimited to distance and speed, as all the bits have to arrive at the end of the wire at approximately thesame time. Direct attach schemes with every server attaches directly to every storage device were also problematic.Imagine 100 servers connected to 100 storage devices, that would be 10,000 wires!
So, a new technology standard was developed, called Fibre Channel, ratified in 1994.The spelling of "Fibre" was intentionally made different than "Fiber" on purpose. "Fibre" is a protocol thatcan travel over copper or glass wires. "Fiber" represents the glass wiring itself.
Fibre Channel is amazingly versatile. For today's Linux, UNIX and Windows servers, it can carry SCSI commands, and the combination of SCSI over FC is called Fibre Channel Protocol (FCP). For the mainframe servers, it can carry CCW commands. Running CCW over Fibre Channel is called FICON. This convergence allows mainframes and distributed systems to share a common Fibre Channel network, using the same set of switches and directors.
We saw the use of SANs explode in the marketplace over the past 10 years, and then cool down with a series of mergers and acquisitions. Last year, Brocade announced it was acquiring rival McData, so we will be down to two major players, Cisco and Brocade.
So, IMHO, I think we are well past the "Year of the SAN".
Continuing my week's theme on travel, conferences, and Japan, I provide three more"survival words" in Japanese language. These might seem like an odd trio, but they comein very handy.