On Wed, 13 Sep 2006 [EMAIL PROTECTED] wrote:

> So, getting back to my original question:
>
>       Is there a definitive solution (and "upgrade to version X.Y.Z" is a 
> fine answer)
>       to the problem where backups fail because Bacula wants to use a volume
>       in on tape drive when the volume is already loaded in another drive?

Yes.

Ensure that update slots is run against the autochanger, NOT against a 
specific tape drive in the changer.

If you need to run update slots against a specific drive (eg: in order to 
unload tapes from anything except drive 0) then all the tapes in the 
changer are linked to that drive and are unavailable for the other one.

To verify this, use "query", option 15 (list tapes bacula thinks are in 
the changer)

> Right. There's no way (that I've found, with 1.38.9) to run "update slots"
> without it explicitely referencing tape drive 0.


> I'm a bit confused here... If volumes become associated with a particular 
> drive
> as the result of running "update slots", then it sounds like there's no way
> around the fundamental problem, regardless of whether I upgrade to 1.38.11.

The trick is to run update slots again, against the changer device. If 
drive 0 is in use, Bacula should skip unloading it and move immediately to 
cataloging the changer.

> I'll take a closer look at the output from "update slots" in whatever version
> I'm running, and report the results.

The output of the query command will also be of use.

> => whether or not this problem exists in 1.39.22 or not, because it is 
> unlikely
> => that I will be making any further patches for 1.38.11.
>
> For my clarification...do you consider the 1.39.x series to be production
> quality?

As soon as Kern says "yes" I plan to update...

>  I do want to restate that I do appreciate the quality, features, and 
> depth of Bacula, and I'm particularly grateful for your timely 
> responses. Perhaps it's the fact that the package is so important, or 
> that it's so close to "commercial quality" (whatever that is!) that 
> causes people to have such high expectations.

I suspect that's so. Bacula is very close to being perfect in many ways 
and the final rough bits can be difficult to cope with at times, 
especially when it results in backups not happening or taking several 
times longer than was anticipated.

AB



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