Re: [Bacula-users] An identical two drive failure

[Kern S. <ke...@si...>]

On Sunday 15 October 2006 17:22, Michael Brennen wrote:
> On Sat, 14 Oct 2006, Kern Sibbald wrote:
> 
> > I should have specified more clearly in previous email that I am 
> > having problems distinguishing between two bug reports that you 
> > have filed.  One is bug #687, which is not very clear to me, but 
> > seems to be similar to bug #689.
> >
> > For bug 689, I do know which test you are referring to since you 
> > explicitly mention it in the bug report, but I just would like to 
> > know if it is the problem you are referring to in this email, or 
> > if there is another test/problem.
> >
> > It would be helpful if I could understand which of the two bug 
> > reports (or both) that what you write here applies to -- i.e. 
> > which of the two bugs are still giving you problems?  Is either 
> > one fixed?  Please add the response to each of the bug reports as 
> > a bug note, then it will be clear to me if I can close one of the 
> > bugs or work on both of them.
> 
> They are essentially the same bug.  One was running two-pool-tape, 
> the other 2drive-incremental-2tape, but the mtx logs show the same 
> failure.  Consolidating to #687 is fine.

Well, two-pool-tape runs fine here too, but I didn't realize it was what is 
failing for you so I didn't explicitly run it a bunch of times as I did for 
2drive-incremental-2tape.

> 
> My apologies for the confusion; it took me some time to sort out 
> what I was seeing and get the debug logs right to finally see the 
> real problem with the missing unload.

As I mentioned, please look into the possibility that a "loaded?" request is 
returning a 0 rather than the correct value.  This could explain everything.  
If Bacula thinks nothing is in drive 1 and drive 0 it will feel free to load 
any slot into either drive.  This should be easy to confirm one way or 
another. 

The other possibility I mentioned is a yet unknown timing problem. Such 
problems are generally a *real* pain to track down.

> 
>     -- Michael
> 
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