On Wed, Jan 12, 2011 at 04:04:37PM -0500, Rob Owens wrote:
> On Wed, Jan 12, 2011 at 03:25:59PM -0500, Ryan Blake wrote:
> > Hello everyone,
> > 
> > I have been looking around for a solution to backing up the BackupPC server 
> > to a "hot spare" BackupPC server but haven't really found anything concrete.
> > 
> > What I'm basically trying to do is this:
> > 
> > I am currently using "dd" to make an exact duplicate of the server's 
> > configuration on another machine (that is also exactly the same).  Once 
> > this finishes, I plan to put the drives into the "spare" computer and place 
> > it offsite at another location that has a direct fiber connection from the 
> > main site where the original BackupPC server is.
> > 
> > What I'd like to do is change the hostname, IP, and have the other server 
> > running without having the actual "BackupPC" process running but installed. 
> >  Then, using rsync (or some other recommended method), I would like to have 
> > the data copied over from the main server to the "hot spare" that is 
> > sitting at the alternate location without BackupPC running.  From my 
> > understanding and logic, if I do this, I should be able to easily start up 
> > BackupPC if a disaster did happen and be able to access the files just as 
> > if I was using that machine to do backups on.  So, I would like to have 
> > rsync* mirror the main server to the "hot spare" so if files are deleted 
> > off the main server, the process would delete the files automatically 
> > during a nightly run.
> > 
> > So, my question is: What is the best solution to do this?  I am assuming 
> > rsync since I've seen quite a few posts about it (and to be sure to use 
> > -H).  However, I was hoping someone would have an entire "command" I would 
> > need to run and the best way to go about doing this since the backup server 
> > will be assumingly still building backups overnight.  I also don't want to 
> > be retransferring unchanged files, only the ones that have changed (just 
> > like BackupPC does with the clients now).  I've also heard someone mention 
> > "storebackup" but I'm not exactly convinced it's any better than rsync.
> > 
> Did anybody ever implement a "backuppcfs" using fuse?  This would allow
> us to mount the backuppc pool filesystem, locally on the spare backuppc
> server.  Then the spare could do daily backups of those mount points.
> 
I should clarify that the mount points would be of the most recent daily
backup.

> This would solve the rsync/hardlink problem.  It would be a little
> easier on the hosts than simply running two backuppc servers that backup
> the hosts -- hosts would only get backed up once a day instead of twice.
> 
> -Rob
> 
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