On Tue, 2005-11-15 at 07:11, Chuck Witt wrote:
> I realize I can start over (all my config files are backed up). I could also
> put 4 more drives and some controller cards in and rebuild with a raid array
> over LVM (probably most sensible). The last option is offsite storage or
> external storage or removable storage. I do not belive I have seen an easy
> or low cost way using removable drives to rotate a 4 drive array in and out
> of the BackupPC machine. Yes, I can envision a 4 drive raid array with a 4
> drive removable array and another 4 drive removable array to switch in or
> out once a week or so but it just doesn't seem practical. I have no idea how
> long it would take to rebuild the array after swapping in a week old set of
> drives.
I use 250 gig drives with an internal/external pair configured as
software RAID1 and it takes about 2 hours to resync the mirror after
a swap if the system is fairly idle. I think you can get 500 gig
drives now and perhaps if you allow for some of the older backups
being on offline drives you could scale down to that. There are
also some places that make external cases holding multiple drives
that appear as one, but then the sync time will become impractical.
You can also do LVM snapshots that you copy to another volume but
I think this is broken in Linux 2.6/LVM2.
--
Les Mikesell
[EMAIL PROTECTED]
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