On Sun, Feb 22, 2009 at 11:59 AM, David Abrahams <d...@boostpro.com> wrote: > > When I take a snapshot of a filesystem (or pool) and pass -r to get all > the sub-filesystems, am I getting the state of all the sub-filesystem > snapshots "at the same instant," or is it essentially equivalent to > making the sub-filesystem snapshots one at a time as I would have to do > if -r weren't available?
Google for "zfs snapshot recursive atomic" leads me to: http://docs.sun.com/app/docs/doc/819-5461/gdfdt?a=view Which says: Recursive ZFS snapshots are created quickly as one atomic operation. The snapshots are created together (all at once) or not created at all. The benefit of atomic snapshots operations is that the snapshot data is always taken at one consistent time, even across descendent file systems. -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
