I believe that clones are always single threaded. Therefore, I think what you
observed is the expected behavior.
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From: MIchael Leone <Michael.Leone AT PHA.PHILA DOT GOV>
Date: Thursday, May 29, 2008 12:11 am
Subject: [Networker] Fw: [Networker] Parallelism of "backup clone" pool devices?
Does anyone have any ideas about this?
>I know I'm missing something simple here ... I have a number of jobs
are clone jobs. So I have a tape library with 4 drives, all of which
defined as devices for a media pool that is a "backup clone" pool.
>I've noticed that it seems that each backup clone job will wait until
>there is a free tape drive, before writing. For example: I have JOB
3, 4, 5 - all are clone jobs, defined to use AFTD disk devices.
that all finish writing to the AFTD devices at approximately the same
>time, JOB 1,2,3,4 will each use one of the 4 tape drives to write to,
JOB 5 will wait until a running job finishes, before writing to the
This is *not* the case with my other library, which has 4 drives, all
>defined as part of a media pool that is *not* a backup pool.
all 5 of those jobs will write to the 4 tape drives at once - i.e.,
those jobs will be servicing 2 group
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