On Dec 7, 2010, at 2:44 PM, Robin Lee Powell wrote:
> On Tue, Dec 07, 2010 at 02:18:51PM -0500, Dan Pritts wrote:
>> umount /var/lib/backuppc
>> dd if=/dev/onedisk of=/dev/someotherdisk bs=1M
> 
> Only works if you have identical disks, which is hard when you've
> got a few TiB on a SAN.

The disks do not have to be identical.  The target just has to be as big or 
bigger than the source.

The target "disk" of course could be another SAN lun, a linux softraid of 
external disks, etc.

Currently, my offsite backup set consists of 2 pairs of disks containing my 
backuppc filesystem and other data.  With 2TB disks, a 10TB disk-based offsite 
would be doable, although it would clearly take quite a while to cut the disks. 
 

If I had that big a pool, I think I'd not be using a single backuppc instance, 
but that's just me.  I'm guessing it works well for you, I'm glad it does.

danno
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