On Tue, Aug 30, 2011 at 2:02 AM, Christoph Weber <weber AT mfo DOT de> wrote:
> Hello Bacula-List,
>
> I've got a little problem with the understanding of schedules.
>
> I want Bacula to do a full backup once a month on specific dates, which
> is the monday followed on the last friday of a month, during normal
> week-days I want to have an incremental run.
>
> Schedule { # optional
> Name = vm-backup-incremental_schedule # required
> Run = Full jan 31 at 1:00
> Run = Full feb 28 at 1:00
> Run = Full mar 28 at 1:00
> Run = Full may 02 at 1:00
> Run = Full may 30 at 1:00
> Run = Full jun 27 at 1:00
> Run = Full aug 01 at 1:00
> Run = Full aug 29 at 1:00
> Run = Full oct 02 at 1:00
> Run = Full oct 30 at 1:00
> Run = Full nov 27 at 1:00
> Run = Full jan 01 at 1:00
> Run = Incremental mon-fri at 2:00
> }
>
> The problem is, that I have a full run and an incremental run scheduled
> on the same day, at 1:00 and 2:00 and the incremental run at 2:00 is not
> an increment of the 1:00 full backup, but an increment of the last
> incremental backup preceding the full backup.
>
> On the friday before the full tape backup with bacula, I run a VMware
> full backup which produces several big files, so I have a lot of new
> data (~1TB) which is now backuped twice with bacula, once with the full
> backup and once with the incremental backup.
>
> I could run the full backup one day before on sunday, but I cannot be
> sure that it'll be finished before the incremental backup on monday.
>
> So how can I achieve that the incremental run is an increment of the
> full backup and not of the last incremental run?
>
> regards,
> Christoph Weber
Try limiting the jobs that can run simultaneously. If your
incremental is using the previous incremental as a baseline even
though it is scheduled after the full, it is probably because it is
kicking off before the full finishes and thus cannot use it as a
baseline. If you limit the number of simultaneous jobs to 1, then the
full will finish before the incremental and will be used as the
baseline.
There are a number of ways to limit the number of jobs running or
writing to a given storage resource. Use the one that best fits your
environment and you should be good to go.
Eric
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