On Thu, Aug 30, 2012 at 1:11 PM, Timothy Coalson <tsc...@mst.edu> wrote:

> Is there a way to get the total amount of data referenced by a snapshot
> that isn't referenced by a specified snapshot/filesystem?  I think this is
> what is really desired in order to locate snapshots with offending space
> usage.


Try "zfs destroy -nv pool/fs@snapA%snapC" (on Illumos-based systems).  This
will tell you how much space would be reclaimed if you were to destroy a
range of snapshots.

--matt
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