> We have our own physical backup server running Red Hat Linux 6 with Bacula
> 5.0.3 to a  Tandberg T24 Tape Library
>
> with one LTO-5 Tape drive with an uncompressed capacity of 1.5 TB.
>
> Only Bacula is writing to this no. No other application uses it.
>
> When about 400GB capacity is reached, then tape will be marked full and
> Bacula
>
> switches to the next tape in the pool.
>
> Where can I configure to use the whole 1.5TB capacity.
>

There is no place to configure to use the full capacity since tapes
with hw compression have no fixed full capacity. You could fit 800GB
on one LTO5 tape and 8TB on a second depending on how your data
compresses. Just make sure someone did not configure to stop after
400GB by putting limits on the volume size in the Pool directive. Most
likely your problem is you are using an LTO3 tape, possibly somehow
have the tape partitioned or a tape error has occurred. With tapes
bacula writes to the tape until it hits its first error. When it hits
that error it marks the tape full. Check your dmesg for scsi errors.

John

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