Hello,
18.11.2009 07:32, Jim Barber wrote:
> Hi.
>
> When defining backup strategies, I've wanted to be able to define
> the 'Next Pool' in the Schedule to override the value defined
> against a pool.
An interesting and valuable feature request. Can you reformat it to
the shape found at http://www.bacula.org/en/?page=feature-request and
re-submit it then? Kern will probably not even read through it in this
form, and definitely not reformat it himself for inclusion into the
feature request list.
Cheers,
Arno
> An example of one usage of such a feature follows:
>
> I have an incremental pool that each week gets consolidated into a
> full pool via a VirtualFull job. The 'Next Pool' directive of the
> incremental pool defines the location of the full pool.
>
> The following week, the next VirtualFull backup will run. It will
> read the previous full backups and incremental backups since then,
> to create new full backups. It is important that the VirtualFull
> backup does not try to write to the same tape that the previous
> weeks full backup wrote to and left in Append status. Otherwise you
> could end up with the one tape trying to be read and written and
> dead-lock.
>
> At the moment I have a hack to get around this. An admin job calls
> an external command that runs a SQL update to find any tapes in the
> full pool with an APPEND status and change it to USED. This runs
> after the full backups have been done.
>
> Instead I'd like to create two full pools. One for even weeks and
> one for odd weeks of the year. That way, even week virtual full
> backups could consolidate odd week virtual full backups with the
> latest incremental backups. And the odd week virtual full backups
> could consolidate the even week full backups with the latest
> incremental backups.
>
> The trouble is that the Incremental pool can only define one Next
> Pool. I can't have it toggle the Next Pool directive from odd to
> even, week to week. Unless I could override it from the schedule.
>
> Doing that would mean I could ditch my SQL hack to manipulate the
> tape status. It will also be less wasteful of tapes, since I won't
> have partially filled USED tapes throughout my library.
>
> Regards,
>
--
Arno Lehmann
IT-Service Lehmann
Sandstr. 6, 49080 Osnabrück
www.its-lehmann.de
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