Tino Schwarze wrote:
>
>
>> Backuppc isn't great at handling tapes. If I were doing it, I think I'd
>> try just letting bacula do its own separate copy to tape and skew the
>> full/incrementals. Actually I do something similar with amanda which
>> figures out the incremental mix on its own to fit the tape.
>
>> If I did have to only make one backup run, I'd probably get some very
>> big disks and configure backuppc to archive fixed size files into
>> directories like you would to archive to DVD (but much bigger), then
>> use a separate script to copy these files to tape.
>
> I've already got the big disks and I'm going the archive route.
The use I intended for these extra 'big disks' was as a temporary
storage for the tar archives that backuppc will generate with it's
archive host feature or you could do from the command line with
BackupPC_tarCreate. You could script dumping a copy into a disk holding
space, then write them to tape when convenient. There's a horrible
amount of overhead going this route but it is straightforward and your
tapes will always have full runs.
> I'm just
> trying to figure out how to do it sanely since archiving every host
> every day is not possible (because of tape and processing capacity).
> I'm actually looking for some strategy to get every host backed up to
> tape from time to time without exceeding tape capacity nor backup time
> contraints.
Unless you expect serious problems from occasionally hitting a target
with two backups at once, I'd let bacula or amanda deal with the tape
copies independently. They'll do quick incremental runs most of the
time and keep track of the order you need to use for restores. I'm not
sure about bacula's scheduling, but amanda will figure out the mix of
fulls and incrementals to fit your tapes best and can use a holding disk
that you can flush later if anything overflows.
--
Les Mikesell
[EMAIL PROTECTED]
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