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Tony Pearson is a Master Inventor, Senior IT Architect and Event Content Manager for [IBM Systems for IBM Systems Technical University] events. With over 30 years with IBM Systems, Tony is frequent traveler, speaking to clients at events throughout the world.
Lloyd Dean is an IBM Senior Certified Executive IT Architect in Infrastructure Architecture. Lloyd has held numerous senior technical roles at IBM during his 19 plus years at IBM. Lloyd most recently has been leading efforts across the Communication/CSI Market as a senior Storage Solution Architect/CTS covering the Kansas City territory. In prior years Lloyd supported the industry accounts as a Storage Solution architect and prior to that as a Storage Software Solutions specialist during his time in the ATS organization.
Lloyd currently supports North America storage sales teams in his Storage Software Solution Architecture SME role in the Washington Systems Center team. His current focus is with IBM Cloud Private and he will be delivering and supporting sessions at Think2019, and Storage Technical University on the Value of IBM storage in this high value IBM solution a part of the IBM Cloud strategy. Lloyd maintains a Subject Matter Expert status across the IBM Spectrum Storage Software solutions. You can follow Lloyd on Twitter @ldean0558 and LinkedIn Lloyd Dean.
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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.
Rent warehouse space for tapes
I remember when various companies offered remote storage for tapes. These would be temperature and humidity-controlledrooms, with access lists on who could bring tapes in, who could take tapes out, and so on. In the event of thedisaster, someone would collect the appropriate tapes and take them to a recovery site location.
Rent online/nearline storage from a Storage Service Provider (SSP)
SSPs rented storage space on disk, or provided automated tape libraries that could be written to. With tapes being ejected and stored in temperature/humidity-controlled vaults. Electronic vaulting eliminates a lot of theissues with cartridge handling and transportation, is more secure, and faster. Rented disk space, based on a Gigabytes-per-month rate, could be used for whatever the customer wanted. If these were for backups or archive,then the customer has to have their own software, to do their own processing at their own location, sending the data to the remote storage as appropriate, and manage their own administration.
Backup-as-a-Service and Archive-as-a-Service
We are now seeing the SaaS model applied to mundane and routine storage management tasks. New providers can offerthe software to send backups, the disk to write them to, and as needed the tape libraries and cartridges to rollover when the disk space is full. Disk capacity can be sized so that the most recent backups are on immediately accessible for fast recovery.
The same concept can be applied to archives. The key difference between a backup and an archive is that backups areversion-based. You might keep three versions of a backup, the most recent, and two older copies, in case something is wrong with the most recent copy, you can go back to older copies. This could be from undetected corruption of the data itself, or problems with the disk or tape media. An archive, on the other hand, is time-based. You want this data to be kept for a specific period of time, based on an event or fixed period of years.
Since BaaS and AaaS providers know what the data is, have some idea of the policies and usage patterns will be, can then optimize a storage solution that best meets service level agreements.
Many people have asked me if there was any logic with the IBM naming convention of IBM Systems branded servers. Here's your quick and easy cheat sheet:
System x -- "x" for cross-platform architecture. Technologies from our mainframe and UNIX servers were brought into chips that sit next to the Intel or AMD processors to provide a more reliable x86 server experience. For example, some models have a POWER processor-based Remote Supervisor Adapter (RSA).
System p -- "p" for POWER architecture.
System z -- "z" for Zero-downtime, zero-exposures. Our lawyers prefer "near-zero", but this is about as close as you get to ["six-nines" availability] in our industry, with the highest level of security and encryption, no other vendor comes close, so you get the idea.
But what about the "i" for System i? Officially, it stands for "Integrated" in that it could integrate different applications running on different operating systems onto a [COMMON] platform. Options were available to insert Intel-based processor cards that ran Windows, or attach special cables that allowed separate System x servers running Windows to attach to a System i. Both allowed Windows applications to share the internal LAN and SAN inside the System i machine. Later, IBM allowed [AIX on System i] and [Linux on Power] operating systems to run as well.
From a storage perspective, we often joked that the "i" stood for "island", as most System i machines used internal disk, or attached externally to only a fewselected models of disk from IBM and EMC that had special support for i5/OS using a special, non-standard 520-byte disk block size. This meant only our popular IBM System Storage DS6000 and DS8000 series disk systems were available. This block size requirement only applies to disk. For tape, i5/OS supports both IBM TS1120 and LTO tape systems. For the most part,System i machines stood separate from the mainframe, and the rest of the Linux, UNIX and Windows distributed serverson the data center floor.
Often, when I am talking to customers, they ask when will product xyz be supported on System z or System i?I explained that IBM's strategy is not to make all storage devices connect via ESCON/FICON or support non-standard block sizes, but rather to get the servers to use standard 512-byte block size, Fibre Channel and other standard protocols.(The old adage applies: If you can't get Mohamed to move to the mountain, get the mountain to move to Mohamed).
On the System z mainframe, we are 60 percent there, allowing three of the five operating systems (z/VM, z/VSE and Linux) to access FCP-based disk and tape devices. (Four out of six if you include [OpenSolaris for the mainframe])But what about System i? As the characters on the popular television show [LOST] would say: It's time to get off the island!
Last week, IBM announced the new [i5/OS V6R1 operating system] with features that will greatly improve the use of external storage on this platform. Check this out:
POWER6-based System i 570 model server
Our latest, most powerful POWER processor brought to the System i platform. The 570 model will be the first in the System i family of servers to make use of new processing technology, using up to 16 (sixteen!) POWER6 processors (running at 4.7GHZ) in each machine.The advantage of the new processors is the increased commercial processing workload (CPW) rating, 31 percent greater than the POWER5+ version and 72 percent greater than the POWER5 version. CPW is the "MIPS" or "TeraFlops" rating for comparing System i servers.Here is the[Announcement Letter].
Fibre Channel Adapter for System i hardware
That's right, these are [Smart IOAs], so an I/O Processor (IOP) is no longer required! You can even boot the Initial Program Load (IPL) direclty from SAN-attached tape.This brings System i to the 21st century for Business Continuity options.
Virtual I/O Server (VIOS)
[VirtualI/O Server] has been around for System p machines, but now available on System i as well. This allows multiplelogical partitions (LPARs) to access resources like Ethernet cards and FCP host bus adapters. In the case of storage, the VIOS handles the 520-byte to 512-byte conversion, so that i5/OS systems can now read and write to standard FCP devices like the IBM System Storage DS4800 and DS4700 disk systems.
IBM System Storage DS4000 series
Initially, we have certified DS4700 and DS4800 disk systems to work with i5/OS, but more devices are in plan.This means that you can now share your DS4700 between i5/OS and your other Linux, UNIX and Windowsservers, take advantage of a mix of FC and SATA disk capacities, RAID6 protection, and so on.
To call [IBM PowerVM] the "VMware for the POWER architecture" would not do it quite justice. In combination with VIOS, IBM PowerVM is able to run a variety of AIX, Linux and i5/OS guest images.The "Live Partition Mobility" feature allows you to easily move guest images from one system to another, while they are running, just like VMotion for x86 machines.
And while we are on the topic of x86, PowerVM is also able to represent a Linux-x86 emulation base to run x86-compiled applications. While many Linux applications could be re-complied from source code for the POWER architecture "as is", others required perhaps 1-2 percent modification to port them over, and that was too much for some software development houses. Now, we can run most x86-compiled Linux application binaries in their original form on POWER architecture servers.
BladeCenter JS22 Express
The POWER6-based [JS22 Express blade] can run i5/OS, taking advantage of PowerVM and VIOS to access all of the BladeCenterresources. The BladeCenter lets you mix and match POWER and x86-based blades in the same chassis, providing theultimate in flexibility.
Are you covering the business impact of the internet failure across Asia, the Middle East and North Africa? The outage has brought business in those regions to a standstill. This disaster shines a direct spotlight on the vulnerability of technology and serves as a reminder of the ever increasing importance of protecting business critical information.
Disaster recovery needs to be a critical element of every technology plan. We don’t yet know the financial impact of this wide spread internet failure, but the companies with disaster recovery plans in place, were likely able to failover their entire systems to servers based in other regions of the world.
When I first heard of this outage, I am thinking, so a few million people don't have access to FaceBook and YouTube, what's the big deal? We in the U.S.A. are in the middle of a [Hollywood writer's strike] and don't have fresh new television sitcoms to watch! Yahoo News relays the typical government's response:[Egypt asks to stop film, MP3 downloads during Internet outage], presumably so that real business can take priority over what little bandwidth is still operational. Fellow IBM blogger "Turbo" Todd Watson pokes fun at this, in his post[Could Someone Please Get King Tutankhamun On The Phone?].Like us suffering here in America, perhaps our brothers and sisters in Egypt and India may getre-acquainted with the joys of reading books.
However, the [Internet Traffic Report-Asia] shows how this impacted various locations including: Shanghai, Mumbai, Tokyo, Tehran, and Singapore. In some cases, you have big delays in IP traffic, in other cases, complete packet loss, depending on where each country lies on the["axis of evil"].This is not something just affecting a few isolated areas, the impact is indeed worldwide. This would be a goodtime to talk about how computer signals are actually sent.
DWDM takes up to 80 independent signals, converts each to a different color of light, and sends all the colors down a single strand of glass fiber. At the receiving end, the colors are split off by a prism,and each color is converted back to its original electrical signal.
Similar DWDM, but only eight signals are sent over the glass fiber. This is generally cheaper, becauseyou don't need highly tuned lasers.
Wikipedia has a good article on [Submarine Communications Cable],including a discussion on how repairs are made when they get damaged or broken.It is important to remember that lost connectivity doesn't mean lost data, just lack of access to the data. Thedata is still there, you just can't get to it right now. For some businesses, that could be disruptive to actualoperations. In other cases, it means that backups or disk mirroring is suspended, so that you only have yourlocal copies of data until connectivity is resumed.
When two cables in the Mediterranean were severed last week, it was put down to a mishap with a stray anchor.
Now a third cable has been cut, this time near Dubai. That, along with new evidence that ships' anchors are not to blame, has sparked theories about more sinister forces that could be at work.
For all the power of modern computing and satellites, most of the world's communications still rely on submarine cables to cross oceans.
It gets weirder. In his blog Rough Type, Nick Carr's[Who Cut the Cables?] reportsnow a fourth cable has been cut, in a different location than the other two cable locations. If the people cuttingthe cables are looking to see how much impact this would have, they will probably be disappointed. Nick Carrrelates how resilient the whole infrastructure turned out to be:
Though India initially lost as much as half of its Internet capacity on Wednesday, traffic was quickly rerouted and by the weekend the country was reported to have regained 90% of its usual capacity. The outage also reveals that the effects of such outages are anything but neutral; they vary widely depending on the size and resources of the user.
Outsourcing firms, such as Infosys and Wipro, and US companies with significant back-office and research and development operations in India, such as IBM and Intel, said they were still trying to asses how their operations had been impacted, if at all.
Whether it is man-made or natural disaster, every business should have a business continuity plan. If you don't have one, or haven't evaluated it in a while, perhaps now is a good time to do that. IBM can help.
According to Gartner data (from 2005!), host-based storage accounts for 34 percent of the overall market for external storage, with the remaining 66 percent going to "fabric-attached" (network) storage, expect this share to grow from 66 percent to 77 percent by 2007.What is the current reality? SAN vs. NAS, FC vs iSCSI?
IBM subscribes to a lot of data from different analysts, they all have their methods for collecting this data, from taking surveys of customers to reviewing financial results of each vendor. While theymight not agree entirely, there are some common threads that lead one to believe they represent "reality". Hereare some numbers from an IDC December 2007 report:
Worldwide Disk Storage
While the 32/68 split is similar to the 34/66 split you mentioned before, you can see that external growth isgrowing faster, so internal host-based storage will drop to 25 percent by 2011, with external storage growing to 75 percent, very close to the 77 predicted. Looking at just the externaldisk storage, there are basically three kinds: DAS (direct cable attachment), NAS (file level protocols suchas NFS, CIFS, HTTP and FTP), and SAN (block-level protocols like FC, iSCSI, ESCON and FICON):
Worldwide External Disk Storage
At these rates, fabric-attached (SAN and NAS) will continue to dominate the storage landscape.Looking more closely now at the block-oriented protocols.
Worldwide External Disk Storage
Fibre Channel (FC)
At these rates, iSCSI will overtake FC by 2011. IBM System Storage N series, DS3300 and XIV Nextraall support iSCSI attachment.
Jon Toigo over at DrunkenData offers some additional data from ex-STKer:[Fred Moore Outlook on Storage 2008]. I met Fredat a conference. He had left STK back in 1998, and started his own company called Horison. NeitherJon nor Fred cite the sources of his statistics, but the following comment leads me to assume hehasn't been paying attention closely to the tape market:
With the demise of STK, who will be the leader in the tape industry?
Depending on how old you are, you might remember exactly where you were when a significant eventoccurred, for example the[Space Shuttle Challenger]explosion. For many IBMers, it was the day our friends at Sun Microsystems announced they were [puttingour lead tape competitor out of its misery]. I was in New York that day, but there was still someconfetti on the floor in the halls of the IBM Tucson lab when I got home a few days later. IBM hasbeen the number one market share leader in tape for over the past four years.
IBM came out with their latest "5 in 5". These are five predictions for technologies that will havean impact over the next five years, summarized on 5 pages. Before I give my take on this year's set,here is a quick recap of[Last Year's 5 in 5]:
3-D representations of the human body to improve health care
This prediction is based on the idea that most medical mistakes result from lack of informationabout the patient. A 3-D avatar of the patient would allow the doctor to click on the section ofthe body, and this would trigger retrieval of patient records, relevant X-rays, MRI images, and so on.For example, IBM System Storage Grid Medical Archive Solution (GMAS) provides the storage that wouldallow any doctor to access these records, even if the image was taken at a different facility.
Unfortunately, this prediction only applies to patients who can actually afford to see a doctor. Apparently,no amount of technology, no matter how cool it is, can convince governments to make health care somethingeveryone has access to. Michael Moore has done a good job explaining this in his film documentary [Sicko].
Digital passport for food
Using RFID tags and second generation barcodes, you will have access to details of a food's origin,transportation conditions, and impact to the environment. Much of this information is already gathered,just not stored in a database accessible to the consumer.
Last year, the term "locavore" was the2007 Word of the Year for the Oxford American Dictionary, referring to people who limit what they eatto food produced within a certain radius, from family farms and locally-owned businesses.Here is an excerpt from a [Locavores] website:
Our food now travels an average of 1,500 miles before ending up on our plates. This globalization of the food supply has serious consequences for the environment, our health, our communities and our tastebuds.
Certainly, I am all for selling storage capacity to the food industry to help store vasts amount ofinformation for this, and certainly some people will be able to make smarter decisions based on thisinformation. This is not the first time this idea came up. The U.S. Food and Drug Administration introduced [nutrition labeling requirements] on thehope that people would choose more healthier foods. Despite this, people still opt for white bread, iceberg lettuce, and processed meats, so possibly having more information about where food comes from, and how it was transported, may not mean much to some consumers.
Technology to manage your own carbon footprint
"Smart energy" technologies allow you to walk the talk, by managing your own carbon footprint inyour home. For example, if you forgot to turn off the heat or air conditioner before leaving thehouse on your commute to work, your home would call your mobile phone, so that you can turn aroundand go back and correct that mistake. Better yet, IBM is working with others to provide web-enabledelectric meters that would allow you to turn off systems from work or cell phone browser.
Of course, such technology already exists for the data center. IBM Systems Director Active EnergyManager (AEM) allows you to monitor the actual usage of your servers and storage devices, and insome cases make adjustments to control energy consumption. This can feed into the IBM TivoliUsage and Accounting Manager software to incorporate energy usage as part of the charge-backcalculations. See the [IBM Press Release] formore details.
Cars that drive themselves
Not only will cars that drive themselves reduce the number of drunk-driving accidents, it canalso help reduce congestion in big cities, by routing traffic to different directions, based onGPS and presence-aware technologies. Stockholm (Sweden) has already reduced peak hour traffic by 20 percentusing this approach.
While I admire the concept, cars are perhaps the least energy-efficient mode of transportation.Often, a family can only afford a single vehicle, and it is purchased based on the worst-case scenario.A friend of mine has only two children, but a sever-person mini-van that gets only 17 MPG. Why suchan energy-inefficient vehicle? Because she occasionally drives her daughter and her friends tosoccer practice, and that represents the worst-case scenario, minimizing the parent/child ratio. Theother 99 percent of the time, she is driving by herself, or with one child, and consuming a lot ofgasoline in the process.
A better approach would be to find technology that connects airports, trains, buses and light rail forpublic transportation to greatly reduce the need to drive a car in the first place.
The idea that a family can have only one vehicle plays in the storage arena as well. Larger companiescan afford to have different storage for different workloads. The IBM System Storage DS8000 high-end disk system for their large OLTP anddatabase workloads, an XIV Nextra for their Web 2.0 storage needs, DR550 to hold their compliance data,and so on. Smaller companies are often tasked to find a single solution for all their needs, andfor them, IBM offers the IBM System Storage N series, providing a "unified storage" platform.
Increased dependence on cell phones
Before the cell phone, the last don't-leave-home-without-it technology most of us carried was the credit card. Now, IBM predicts that we will be even more dependent on our cell phones, becoming our banker, ticket broker, and shopping buddy.For example, you could use your cell phone to take a picture of a shirt at the mall, and it will then show you what youwould look like wearing that shirt, on a 3-D avatar representation of yourself, or perhaps your spouse, and getinformation on what discounts are available, or where else the shirt is being offered.
None of this example actually uses the "phone" part of the cell phone, however the cell phone is one device thatnearly everyone carries, so it becomes the development platform for all other technologies to be based on.
The common theme running through these is that it can be helpful to store more information than we do today,provided we make it accessible to the people who need it to make better decisions.