David,

Your assumption is incorrect.  Both pools must have the same media type as 
defined for the tape drives if you want both pools to use both drives, 
otherwise, the media type can be different, but that is usually when you have 
different changers and/or storage daemons.  I have multiple pools and drives in 
my changer (all with the same media type) and they play happily together at the 
same time.  If you have further questions, posting your configuration, bacula 
version, OS version, etc are the details needed to provide more directed 
answers.

Patti Clark
Linux System Administrator
R&D Systems Support Oak Ridge National Laboratory

From: David Lawley <da...@upilab.com<mailto:da...@upilab.com>>
Date: Wednesday, December 16, 2015 at 10:41 AM
To: 
"bacula-users@lists.sourceforge.net<mailto:bacula-users@lists.sourceforge.net>" 
<bacula-users@lists.sourceforge.net<mailto:bacula-users@lists.sourceforge.net>>
Subject: [Bacula-users] auto-changer with 2 drives

Kind of a newbie question, yet asking for a confirmation of my research.

I have a Dell ML6000 changer/library with 2 LTO4 drives

bconsole list the ML6000 as my device.  The library is configured with
tapedrive0 and tapedrive1.

When I start jobs with different pools one of the drives will get used
but not the other, job remains queued even tho the other drive is free.

So what I seem to have found is that once a pool is used by a device
(this being the ML6000) It cannot access another pool, even tho the
device has 2 drives and one is idle.

Guessing the best way around this is to use each drive directly rather
than the library device?

tx






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