Christopher Weimann wrote: > On 01/23/2004-10:18AM, Joshua D. Drake wrote: > > > > XFS also has the interesting ability (although I have yet to test it) > > that will allow you > > to take a snapshot of the filesystem. Thus you can have filesystem level > > backups > > of the PGDATA directory that are consistent even though the database is > > running. > > You can do snapshots in FreeBSD 5.x with UFS2 as well but that ( > nor XFS snapshots ) will let you backup with the database server > running. Just because you will get the file exactly as it was at > a particular instant does not mean that the postmaster did not > still have some some data that was not flushed to disk yet.
Uh, yea, it does. If the snapshot includes all of /data, including WAL/xlog, you can then back up the snapshot and restore it on another machine. It will restart just like a crash. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
