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's flash storage
is more bark than bite,
Wikibon CTO David Floyer. General availability for EMC's XtremIO flash storage system isn't expected until the summer of 2014 (EMC offers "directed availability" for now), and its XtremSF server flash cards only support the caching/reading of data found on external storage - by comparison, cards from Fusion-io (
) and others also support data writes, allowing them to run databases and Web/cloud services. Floyer's takeaway: EMC is still trying to protect sales of its high-end
Symmetrix VMAX systems
by stating EMC's XtremSF server flash cards do indeed support full read/write capabilities - a Silicon Angle article discussing his views had indicated otherwise. He also predicts EMC's XtremIO systems "will probably become the leading flash-only array product in the marketplace."
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I would like to correct some facts and opinions that have been attributed to me:
- The EMC XtremIO all-flash array is available in 2013, and not 2014 as indicated above;
- The EMC XtremSF PCIe cards can be used for direct server-attached storage volumes, and have full read/write capability;
- XtremSF can also be used with XtremSW software as read-only caching (random-write data is written round-robin to the PCIe card, then stored-through to the storage array; an acknowledgement of the IO write is sent to the server from the storage array).
The views attributed to me by Seeking Alpha do not reflect my opinion about the XtremIO all-flash storage array. Given the strong architecture, assuming EMC does not delay delivering effective storage services, and given EMC's reputation for quality and its world-wide marketing strength, I believe that XtremIO will probably become the leading flash-only array product in the marketplace. With a good pricing strategy, It has the potential to become ubiquitous, in both large and small installations.
The full details of my analysis can be found at
. Further research on the PCIe cards will be published soon.
David Floyer, CTO & Co-founder, Wikibon
, @dfloyer, David.Floyer@wikibon.org
Mar 11, 2013. 09:06 AM
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