On Thu, Jun 13, 2002 at 02:13:39PM -0500, Kirk Strauser wrote:
> I just finished reading `Unix Backup and Recovery' and realized that there
> are quite a few holes in my disaster recovery plan.  In particular, I'm
> looking for a way to backup PostgreSQL without taking the database offline.
> I'm assuming that whatever method I use will involve writing a wrapper
> script to prepare the backup, launch Amanda, then clean up afterward, but
> that's about as much as I've guessed right now.

Alternatively to the pg_dump approach others have suggested you can
snapshot your filesystem and then use regular backup.

The easiest way to snapshot the filesystem is to use a logical volume
manager (LVM or EVMS on linux) and then do:
1. take database offline
2. take snapshot
3. take database online
4. backup from snapshot
5. remove snapshot


-- 
Ragnar Kjørstad
Big Storage

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