On Fri, 13 Jun 2008, John Drescher wrote:

> >   If I am spooling, will bacula write one spool file at a time or 5
> > files at a time to the tape? Should I set MaximumConcurrentJobs to 1
> > for the tape storage directive so that it writes one file at a time to
> > the tape?
> >
> This would stop the concurrent backups. What works well for me is to
> make the spool size 2 to 5 GB and so this will generally have the tape
> drive being fully utilized while the concurrent backups are in
> progress. A few jobs would be spooling and a few jobs would be
> despooling at the same time.

To clarify the OP's question:

If you are spooling and have concurrent backups running:

Multiple jobs will write to spool files simultaneously

Only one spool file will write to the tape at a time.

If there are multiple spool files wanting to write to tape, they will wait
until the currently despooling file finishes, then despool in the order
they were queued.



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