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» VIEW ALL POSTS Apr 14 2010   10:49PM GMT

Symantec to add new disk array partners for Thin Reclamation API



Posted by: Beth Pariseau
Tags:
Data storage management
thin provisioning

Symantec announced at its Symantec Vision show today in Las Vegas that it will add new support for more third-party disk arrays under its Veritas Thin Reclamation API, part of its Thin Optimization features for Storage Foundation.

Three array partners, 3PAR, IBM and HDS, had already integrated with the API prior to this announcement. This week, Symantec is announcing support for EMC’s Clariion (Symmetrix to follow by the end of the year), HP’s XP24000 (EVA to be determined), as well as arrays from Fujitsu, NetApp and Compellent (the latter still to come later this month).

The API helps Veritas File System (VxFS), which underpins Storage Foundation, and storage arrays communicate which blocks have been deleted and can be freed up and put back into the storage pool. Symantec’s Thin Optimization can also help users perform “thin migrations” from a thick-provisioned to a thin-provisioned array.

Some of the array vendors offer similar features natively — HDS, for example, offers what it calls Zero Page Reclaim, and Compellent offers Thin Import. Symantec claims its approach is more efficient than these native tools. “The reality is that typically unused storage is delted or overwritten, but not written over with all zeroes,” said vice president of product management Josh Kahn. “That makes things like zero-page reclaim less efficient.”

Kahn said Symantec is testing the Thin Reclamation API to get some statistics on the amount of additional capacity users can reclaim with it, but doesn’t yet have those specific numbers.

“The big advantage to this is migrating data from thick to thin, and it’s a pretty efficient tool for heterogeneous environments,” said Enterprise Strategy Group (ESG) analyst Bob Laliberte. “Whether it’s efficient enough to use in tandem with a storage vendor is a question of whether you’re an existing Symantec shop.”

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