On 05/ 6/11 07:21 PM, Brandon High wrote:
On Fri, May 6, 2011 at 9:15 AM, Ray Van Dolson<rvandol...@esri.com>
wrote:

We use dedupe on our VMware datastores and typically see 50% savings,
often times more.  We do of course keep "like" VM's on the same volume
I think NetApp uses 4k blocks by default, so the block size and
alignment should match up for most filesystems and yield better
savings.
Assuming that VMware datastores are on NFS ? Otherwise VMware filesystem VMFS uses its own block sizes from 1M to 8M, so the important point is to align guest OS partition to 1M, and Windows guests starting from Vista/2008 do that by default now.

Regards,

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