My understanding--from a few years ago--was that NetApp's filesystem snapshot facility was something of a side-effect of NetApp's propriety WAFL file system/implementation and that it would be quite difficult for another filesystem to provide the same types of snapshots.

Perhaps the technology of other vendors/filesystems has changed in the intervening years, however.

Arthur Gaer
[EMAIL PROTECTED]

Senior Systems Manager, Department of Mathematics
Harvard University, 617-495-1610, FAX: 617-495-5132


On Aug 22, 2007, at 12:45 PM, Jeff Wasilko wrote:

On Wed, Aug 22, 2007 at 12:36:21PM -0400, Scott Ehrlich wrote:
Let me clarify -

I'm wondering what companies, other than Network Appliance, also
incorporate snapshot capability? Maybe they all do, and use different
wording, or some implementations are better/preferred than others?

The Engenio-based RAID arrays can do volume snapshots, but that's
a different thing than filesystem snapthots.

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