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Whew! I am glad that is over. The BarryB circus has left town, he has decided to [move on to other topics], and I am now to clean up the ["circus gold"] leftbehind. I would like to remind everyone that all of these discussions have been about the architecture,not the product. IBM will come out withits own version of a product based on Nextra later in 2008, which may be different than the product that XIV currentlysells to its customers.
technorati tags: IBM, XIV, RAID-X, RAID-5.99, RAID-5, RAID-10, RAID-6, EMC, BarryB, Risk, GB-hours, NetApp, Ramskov, Robin+Harris, StorageMojo, elephant, circus gold, Wall Street Journal, WSJ, Bank Leumi, traditional workloads, digital content, unstructured data, HotMail, FreeDrive, FlickR, KodakGallery, online, photos[Read More]
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As BarryW points out, IBM System Storage SAN Volume Controller (SVC) is now[fully certified with VMWare ESX 3.0.2]. Here's the [official IBM press release]. This is based onthe [Storage Virtualization Certification Program] announced by VMware last week.
This is great news for everyone. I have said before that VMware is perhaps the best product EMC offers, and some EMC bloggers have returned the favor saying that SVC might just be the best disk system that IBM offers. While IBM and EMCare heavily competitive in other aspects of the IT storage industry, when it comes to delivering what is right for the customer, we can set aside those differences. IBM is the number one reseller of VMware, and it is a great pairing with SAN Volume Controller.
Of course, it is not a free-for-all. VMware has a few restrictions at this time:
Of course, most of these issues can probably be addressed with additional testing, or minor software changes, and IBM will work with VMware to prioritize what added testing or software changes are needed to expand this support.Read More]
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I have created blog categories, based on our System Storage offering matrix, which you can track individually:
This week I am in Maryland, teaching at our Top Gun sales training class.
Of course, often it is the students teaching me something new. Bringing up freshnew ways at looking at things.
Take for example this new online video game called Capacity Crisis. In it, you are the storage administrator tryingto get additional storage capacity to all the different departmentmanagers that need more space.
Try it![Read More]
Continuing this week's theme on Business Continuity, I will use this post to discuss this week'sIBM solid state disk announcement.This new offering provides a new way to separate programs from data, to help minimizedowntime and outages normally associated with disk drive failures.
Until now, the method most people used to minimize the amount of data on internalstorage was to use disk-less servers with Boot-Over-SAN, however, not all operating systems, and not all disk systems, supported this.
Windows, however, is not supported, because of the small 4GB size and USB protocol limitations. For Windows, you would add a SAS drive, you boot from this hard drive, and use the 4GB Flash drive for data only.
So what's new this time? Here's a quick recap of July 17 announcement. For the IBM BladeCenter HS21 XM blade servers, new models of internal "disk" storage:
Until recently, solid state storage was available at a price premium only. Flash prices have dropped 50% annually while capacities have doubled. This trend is expected to continue through 2009.
Flash drives use non-volatile memory instead of moving parts, so less likely to break down during high external environmental stress conditions, like vibration and shock, or extreme temperature ranges (-0C° to +70°C) that would make traditional hard disks prone to failure.This is especially important for our telecommunications clients, who are always looking for solutions that are NEBS Level 3 compliant.
Last year, I mentioned that flash drives could provide only a limited number of write and erase cycles, but today's new advances in wear-leveling algorithms have nearly eliminated this limitation.
As with any SATA drive, performance depends on workload.Solid state drives perform best as OS boot devices, taking only a few secondslonger to boot an OS than from a traditional 73GB SAS drive. Flash drives also excel in applications featuring random read workloads, such as web servers. For random and sequential write workloads, use SAS drives instead for higher levels of performance.
So, even though this is not part of the System Storage product line, I am very excitedfor IBM. To find out if this will work in your environment, go to the IBM Server Provenwebsite that lists compatability with hardware, applications and middleware, or review the latest Configuration and Options Guide (COG).
technorati tags: IBM, Business, Continuity, solid, state, flash, disk, drive, announcement, blade, server, BladeCenter, H21, XM, 4GB, Flash, Memory, Device, USB2.0, Linux, RedHat, RHEL, Novell, SUSE, SLES, Windows, Project, Big Green, SATA, SAS, energy, efficient, efficiency, performance, NEBS, telecommunications, boot-over-SAN, Google, Carnegie Mellon, study, Vmware