> I'm trying to set a backup system where i'd use a single tape to store a
> full backup on a single job.
>
I would never recommend such a policy because while you are backing up
the data each day you have no valid previous backup.

>
> The first backup goes fine, and also the restore. The problem comes
> while trying to run again the full backup job with the same tape on the
> drive. Even if the tape is rewinded, bacula returns me an error saying
> that there's no volume:
>
> 04-Jan 17:18 adhara-sd JobId 61: Job
> testbackupjob.2010-01-04_17.18.47.06 waiting. Cannot find any appendable
> volumes.
> Please use the "label"  command to create a new Volume for:
>    Storage:      "DellPowervault110T" (/dev/nst0)
>    Pool:         pooltest
>    Media type:   LT02
>
> My pool looks like:
>
> # pool for tests
> Pool {
>  Name = pooltest
>  Pool Type = Backup
>  AutoPrune = no
>  Recycle = yes
>  Use Volume Once = yes
> #  Volume Retention = 365 days
>  Maximum Volume Jobs = 1
>
> }
>
> Should i set volume retention to lower than a day? Can i set it to 0, so
> i can run the same backup over the same tape one right after the other?
> (just for testing)
>

I would set volume retention to 1 minute. Then make sure you use the
update volume command in bconsole to make the change to any current
labeled volumes.

John

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