On Tue, Jul 03, 2007 at 04:05:53PM -0700, Vincent Fox wrote: > I just thought to report back to the list, that ZFS is working out well. > > I asked a while ago about other's opinions, and got all thumbs up. > > We deployed a setup with Sun T2000 running Solaris 10u3 (11/06) > and a pair of Sun 3510FC arrays mirroring in a hybrid HA RAID > 5+1+0 setup that I can describe further if anyone cares. > > We currently have 27,323 accounts on it, and it is performing > very well, with atime=off and compression=on. We have only > recently migrated a lot of this existing userbase over using > an imapsync method, so we are not as yet seeing so much of > space/performance benefits of single instance store. After our migration of staff to Cyrus we hardlinked exact duplicates together. I used faster-dupemerge from http://www.furryterror.org/~zblaxell/dupemerge/dupemerge.html with some modifications (mainly that it would only link files matching /^\d+\.$/) This resulted in only small space savings but still seemed worth doing; the main "cost" was some extra IO. -- Tim Bannister IT Services e: Tim.Bannister@xxxxxxxxxxxxxxxx w: http://www.manchester.ac.uk/itservices ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html