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.
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