On Mon, Apr 10, 2006 at 11:59:15AM +0100, Alan Brown wrote:

> If there are recyclable pool volumes in the changer then use them, else 
> use available scratch pool volumes.
> 
> Otherwise the size of a tape pool can effectively grow far more rapidly 
> than expected in the absence of a "max volumes =" pool parameter.

I'd second this.  I'd like to be able to leave a number of scratch
volumes available without having them put into service when there are
other eligible volumes available.

On a somewhat related note, I'm not clear on how the tape selection
algorithm is altered when an autochanger is available.  For example,
if there are two equally eligible volumes available, only one of which
is in the autochanger, would this volume be preferred?  That seems
desirable, but I don't see this behavior specified anywhere.

I'm also unclear on whether Bacula currently tracks which volumes are
in an autochanger.  Right now, I have two volumes that are both
recorded in the database as "InChanger = 1" and "Slot = 4", but it's
not obvious which tape is actually in the changer.

-- John Kodis.


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