John Madden wrote: > > We did quite a bit with snapshots (LVM) to when we were experimenting > with block-level backups but there's a performance problem there -- we > were saturating GbE. Snapshot doesn't really buy you anything in > terms of getting the data to tape. > > We run the tape backup from previous night snapshot, that way we know it's a read-only copy and nothing in flight. All of our usage so far has been "I deleted all my mail 2 days ago" and we retrieve that from snapshots. For our day-to-day purposes nobody interacts with the tape except we know it's there for DR. ---- 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
