* Claudio Freire (klaussfre...@gmail.com) wrote: > I don't see how this is better than snapshotting at the filesystem > level. I have no experience with TB scale databases (I've been limited > to only hundreds of GB), but from my limited mid-size db experience, > filesystem snapshotting is pretty much the same thing you propose > there (xfs_freeze), and it works pretty well. There's even automated > tools to do that, like bacula, and they can handle incremental > snapshots.
Large databases tend to have multiple filesystems and getting a single,
consistent, snapshot across all of them while under load is..
'challenging'. It's fine if you use pg_start/stop_backup() and you're
saving the XLOGs off, but if you can't do that..
Thanks,
Stephen
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