On Thu, Jul 17, 2008 at 12:34 PM, T. Horsnell <tsh AT mrc-lmb.cam.ac DOT uk> 
wrote:
> Hi,
> I have a two-drive autochanger with 47 tapes in it, all defined to be
> members of the default pool. I use bconsole to mount slot1 on drive 0
> and slot 2 on drive1. The 'status storage' command then shows me:
>
> Device status:
> Autochanger "Autochanger" with devices:
>    "LTO4-0" (/dev/nst0)
>    "LTO4-1" (/dev/nst1)
> Device "LTO4-0" (/dev/nst0) is mounted with:
>     Volume:      B00001L4
>     Pool:        *unknown*
>     Media type:  LTO4
>     Slot 1 is loaded in drive 0.
>     Total Bytes Read=0 Blocks Read=0 Bytes/block=0
>     Positioned at File=0 Block=0
> Device "LTO4-1" (/dev/nst1) is mounted with:
>     Volume:      B00002L4
>     Pool:        *unknown*
>     Media type:  LTO4
>     Slot 2 is loaded in drive 1.
>     Total Bytes Read=0 Blocks Read=0 Bytes/block=0
>     Positioned at File=0 Block=0
>
> Why is drive 1's volume shown as "Pool:  *unknown*" ?
> The result of this is that this drive doesnt get used when I backup.
>
> If I instead mount slot 2 on drive 0 and slot1 on drive 1, it's still
> drive 1's volume which has 'Pool: *unknown*', so the problem follows the
> drive, not the tape volume. In the docs I cant see any pool stuff
> related to devices, so what do I do here?
>
This unknown pool is normal after a mount until the volume is actually
used by a job.

Can you post some messages to show where bacula is not correctly using
the volumes?

John

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