In a recent post, ESG Analyst Tony Asaro asks What happened to CAS?
Many often associate CAS with EMC's Centera offering, but with IBM's comprehensive set of compliance storageofferings, EMC doesn't talk about CAS or Centera much anymore.I covered the confusion around CAS in a previous post. When clients ask for "CAS" what they really are looking for is storage designed forfixed content, unstructured data that doesn't change once written. A lot of data falls under this category, such as scanned documents, audio and video recordings, medical images, and so on. Some laws and regulations further require enforcement that the data is not deleted or tampered with, until some time after an event or expiration date is met.
In the past, clients used write-once read-many (WORM) optical media, but today we have disk and tape offerings instead. Since the term "WORM" is inappropriate fordisk-based solutions, IBM has standardized to the use of the term "non-erasable, non-rewriteable" (NENR) to discusstoday's solutions and offerings.
Let's recap what IBM has to offer:
As you see, IBM doesn't limit itself to disk-only offerings. Our leadership in tape allows us to innovate tape and disk-and-tape offerings that can provide more cost-effective solutions to store fixed content, retention managed data.The next time you have a conversation with a storage vendor, don't ask for CAS, ask instead for archive and compliance storage. Broaden your mind, and broaden the set of options and choices that might provide a better fit for your requirements.
technorati tags: ESG, analyst, Tony Asaro, EMC, Centera, CAS, IBM, system, storage, DR550, Express, N series, GAM, grid, GMAS, medical, archive, WORM, TS1120, LTO, LTO3, LTO4, NENR, fixed, content, retention[Read More]
Well, it's Wednesday! Normally, IBM makes its announcements on Tuesday's, but this week that landed on the 13th, and some people are superstitious, so we pushed it back to today. Fellow IBM master inventory Barry Whyte starts the first in a series of posts with: New SVC v5 CF8 node with native SSD support.
There are really two separate items being announced for the IBM System Storage SAN Volume Controller (SVC):
As Barry says, IBM has been working on this for quite a while, and based on initial responses looks to be quite successful in the market!
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
It's Tuesday, which means IBM announcements, and today IBM made some major announcementsthat support a [Dynamic Infrastructure]! I hinted at this yesterday, choosing the week's theme to be all about Cloud Computing and Alternative Sourcing. I will briefly highlight today's announcements related to storage here, and try to go into more detail over the next few weeks.
This is just a small subset of all the announcements. For more information, see this 28-pagepresentation [Manage the Explosion of Information with IBM Information Infrastructure].
technorati tags: IBM, Dynamic Infrastructure, Ethernet, switches, routers, Cloud Computing, Cloud Storage, Brocade, Juniper Networks, Cisco, IronStack, FCoE, FCoCEE, PoE, DS5000, FC, FDE, TSM, FastBack, TotalStorage, Tivoli, Storage, Productivity Center, Novus, SERP, TS7650, TS77650G, ProtecTIER, Information Infrastructure[Read More]
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I am back at "the Office" for a single day today. This happens often enough I need a name for it.Air Force pilots that practice landing and take-offs call them "Touch and Go", but I think I needsomething better. If you can think of a better phrase, let me know.
This week, I was in Hartford, CT, Somers, NY and our Corporate Headquarters in Armonk, in a varietyof meetings, some with editors of magazines, others with IBMers I have only spoken to over the phone andfinally got a chance to meet face to face.
I got back to Tucson last night, had meetings this morning in Second Life, then presented "Inf Sunday, I leave for Las Vegas for our upcoming IBM Storage and Storage Networking Symposium. We will cover the latest in our disk, tape, storage networking and related software.Do you have your tickets? If you plan to attend, and want to meet up with me, let me know.
Sunday, I leave for Las Vegas for our upcoming IBM Storage and Storage Networking Symposium. We will cover the latest in our disk, tape, storage networking and related software.Do you have your tickets? If you plan to attend, and want to meet up with me, let me know.Read More]