Hi Frank,

On Wed, 16 Jan 2013, f.staedler AT dafuer DOT de wrote:
> just another question I stumbled upon. While doing more testing with a
> tape library and my rather large backup sets I came across a new
> question. A single full backup of one machine is about 30 TB and while a
> full backup is running the libraray requests drive cleaning (I called
> support and they told me the tape drive will request cleaning on a
> regular basis of TBs written to the tape along with start/stop cycles).
> 

Maybe your tape library has a option to load the cleaning tape automatically. 
My tape library has such a feature and I configured Bacula not loading tapes 
with the CLN prefix, as Adrian already mentioned. 

My experience so far: If a cleaning requests occurs during a running job, the 
tape library unloads the current tape, loads the cleaning tape and after 
cleaning loads the previous tape. The Bacula job is on hold and wait for the 
Storage Device to get ready again.

Best Regards,
Patrick

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