Hi:
>
> Here's one possibility:
>
> Pool {
> Name = Full
> ...
> Volume Use Duration = 23 hours
> Volume Retention = 89 days
> }
>
> Pool {
> Name = Differential
> ...
> Volume Use Duration = 23 hours
> Volume Retention = 89 days
> }
>
> Pool {
> Name = Incremental
> ...
> Volume Use Duration = 23 hours
> Volume Retention = 90 days
> }
>
> Do a Differential once every 90 days and Incrementals the rest of the time.
> In theory, you only need to run one Full backup. Ever. In practice, you'll
> probably want to create a new Full backup every year or so to clear out the
> obsolete data and make your differentials smaller (and faster).
>
> Another way to do it that uses even less disk space would be to eliminate
> the differentials completely and just create a new Full backup every 90
> days.
Thanks, I think that using a combination Differential, Incremental and
Full is the best way to keep 90 days old of data. I'm going to make
this changes to my bacula configuration.
>
> - Cedric
>
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