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Re: [BackupPC-users] Backuppc mirroring with rdiff-backup or not?
2008-11-18 10:59:22
Christian Völker <chrischan AT knebb DOT de> wrote
on 11/18/2008 03:34:45 AM:
> > I think that you can use rsync v3 (on both sides) to sync pools
without
> > issue.
> > I'm assuming that you are using linux here also. With *solaris
you have
> > the zfs option as well.
> > I did some research a while back to use a cluster filesystem
for the
> > storage pool but all cluster filesystems have much lower I/O
performance
> > than an on-disk filesystem.
>
> 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.
I've been looking into this for a while now, both
for BackupPC and for VMWare.
How do you syncronize the snapshot with BackupPC to
ensure that you are getting a consistent snapshot. For VMWare Server,
that means shutting down the guests, taking the snapshot, and starting
the guests, which is disruptive to say the least. (ESX Server has
tools for doing this internal to the VM system.) Do you do the same
for BackupPC? Or do you just hope that you're getting a consistent
snapshot?
Tim Massey
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