|
Re: [BackupPC-users] Backuppc mirroring with rdiff-backup or not?
2008-11-23 17:35:53
On Tue, 18 Nov 2008, Adam Goryachev wrote:
Christian Völker wrote:
My way to backup the backup ;-) is LVM
The pool is on a LVM as a LV. To backup the pool while backuppc is
running I can take a snapshot of the pool's LV and I rsync this one. So
there are no filesystem issues and backuppc can stay running while the
rsync is running.
Works like a champ!
Except your filesystem is not in a stable state. You should stop
backuppc, umount your filesystem, then take your snapshot, and then
remount filesystem, start backuppc, and finally copy the snapshot
remotely as needed....
With your existing method, you should fsck your filesystem after it is
copied to the remote location....
BTW, 99% of the time it won't matter, but if it screws up that one time
when you need it, then oops :(
Actually, lvm hooks into most filesystems including ext3 to make sure they
are self consistent at the point of snapshot.
See http://www.google.com/groups?selm=9JzNW-6b3-3 AT gated-at.bofh DOT it
Note that a 'fsck -p' is needed on the snapshot, but it will only
encounter orphaned inodes if all has gone well (and if all hasn't gone
well, then there are bigger problems with the real filesystem, and it
should be rebooted and force fscked as soon as possible, as per the thread
above).
--
Tim Connors
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki: http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/
|
|
|
