On Thursday 29 June 2006 00:18, Jo Rhett wrote:
> Is there any possible way for Bacula to randomize the full backups
> across
> the week, or otherwise spread them out?
>
> Like most large facilities, we're backing up a terabytes every night.
> Trying to juggle which systems get full backups on which day of the week
> has become almost a full time job.
>
> Amanda did a neat scheduling trick of balancing the full backups
> around, so
> that the amount of data backed up each night was roughly the same, while
> also making sure that a full was done in a given time period. Any
> possible
> way to do this in Bacula?
>
> If not, want to give me pointers to the right code segments? Because we
> have *LOTS* of data and *VERY LITTLE* care about exactly when the full
> backups are done. A scheduler like Amandas is going to be crucial
> for us.
I have no plans to add such a feature and I'm not really convinced that it is
very useful unless you have thousands of computers. For changing schedules,
you would need to see src/dird/scheduler.c, but then a lot of stuff is in
src/dird/dird_conf.c and src/dird/run_conf.c. To do it à la Amanda is
probably much more complicated though, because if I am not mistaken, Amanda
first makes an estimate of how much work to be done, and that would require
calling each FD with an "estimate" command.
If you care very little about when Full backups are done, considering doing
one once a month, with differentials weekly (or bi-weekly) and incrementals
the rest of the time. For a shop with lots of data, this is probably much
more efficient, unless you also do *lots* of restored and need them done
*fast*.
--
Best regards,
Kern
(">
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