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List:       zfs-discuss
Subject:    Re: [zfs-discuss] Problem with snapshot
From:       "Anton B. Rang" <rang () acm ! org>
Date:       2009-01-29 18:19:03
Message-ID: 1173643460.26271233281973827.JavaMail.Twebapp () sf-app1
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Snapshots are not on a per-pool basis but a per-file-system basis.  Thus, when you \
took a snapshot of "testpol", you didn't actually snapshot the pool; rather, you took \
a snapshot of the top level file system (which has an implicit name matching that of \
the pool).

Thus, you haven't actually affected file systems fs1 or fs2 at all.

However, apparently you were able to roll back the file system, which either \
unmounted or broke the mounts to fs1 and fs2.  This probably shouldn't have been \
allowed.  (I wonder what would happen with an explicit non-ZFS mount to a ZFS \
directory which is removed by a rollback?)

Your fs1 and fs2 file systems still exist, but they're not attached to their old \
names any more. Maybe they got unmounted. You could probably mount them, either on \
the fs1 directory and on a new fs2 directory if you create one, or at a different \
point in your file system hierarchy.

Anton
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