[Savannah-hackers-public] Re: [gnu.org #499737] Savannah backup strategy

[Sylvain Beucler]

On Tue, Nov 10, 2009 at 11:19:29AM -0500, Daniel Clark via RT wrote:
> > [beuc - Sat Oct 31 18:06:20 2009]:
> > 
> > Hi,
> > 
> > I'd like to start a discussion about the Savannah backup.
> > 
> > Currently Savannah2004 is a single filesystem that is rsync'd in a
> > single pass. That synchro then goes to magnetic tapes, and some of
> > them are stored forever.  (at least that's what I understand)
> > 
> > Since we're moving to Xen, the data are going to be split in multiple
> > LVs. How do you see the new backup setup? Some DomUs are external and
> > be directly accessed through the network, but some others are
> > internal.
> > 
> > (Currently I implemented a backup from savannah-backup.gnu.org but
> > there's no backup history.  As previously mentioned it's based on LVM
> > snapshots, and it done per-domU/VServer rather than in single-pass).
> 
> Your plan to get stuff to savannah-backup via lvm snapshots on the
> savannah dom0 makes sense to us.
> 
> We would suggest that we then backup only savannah-backup, not savannah
> directly, to our tape system - that way the transition from savannah to
> cloud9 should be nearly unnoticeable to us, and we won't be hitting
> production savannah disk for backups more then we need to. 
> 
> Does that sound good to you?

That sounds good.

Currently the backup is done at 12:00GMT and needs around 1h to work -
we should try to make this backup and your backup at different times.

Currently the data is in /mnt/backup - let me know if that's a
problem.

I think it would be good to backup the whole system, because the DNS
server is hosted there too.

-- 
Sylvain