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November 24, 2008


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Nik Simpson

John, I don't think you meant "transistors/square inch" when describing magnetic hard drive density, "bits/square inch" yes, transistors,no.

BTW, if you haven't already seen it, my colleague Gene Ruth has done some performance testing of Intel's enterprise SSDs, where write performance certainly doesn't seem to be a problem compared to conventional drives. For the details, see http://dcsblog.burtongroup.com/data_center_strategies/2008/11/intels-enterprise-ssd-performance.html

John Spiers


Thanks for catching that. I evidently had SSD on my mind.

Thanks for the info. Yes, the X-25M does have impressive performance for an MLC drive. Write performance largely depends on how efficient the error correction and wear leveling algorithms are. I know of a few startups that are working on very innovate error correction techniques for solid state. I expect SSD performance and reliability improvements to progress at a rapid pace.


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The Virtual View

  • Virtualization is the foundation of every open iSCSI SAN LeftHand delivers today. In fact, the technical name given to SAN/iQ storage software platform in its patent is “Distributed Network Storage with Virtualization.” SAN/iQ can virtualize the storage in a server from inside a virtual machine or virtualize storage across a networked cluster of enterprise-class x86 storage servers, with it all appearing as a centrally managed storage pool with all the features of an enterprise class SAN – truly the ultimate Virtual View.