Bacula-users

Re: [Bacula-users] Best way to auto mount and umount & eject

2008-08-01 16:12:48
Subject: Re: [Bacula-users] Best way to auto mount and umount & eject
From: Ryan Novosielski <novosirj AT umdnj DOT edu>
To: Brian Debelius <bdebelius AT intelesyscorp DOT com>
Date: Fri, 01 Aug 2008 16:11:53 -0400
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Brian Debelius wrote:
> Ryan Novosielski wrote:
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>> Seems to me none of this is necessary. Is there some reason that
>> AlwaysOpen = no and OfflineOnUnmount = yes or something similar would
>> not work? Or does AlwaysOpen not actually unmount, just release the tape?
>>
>>   
> From what I just read about AlwaysOpen=No , I interpret that to mean
> that after a job completes, bacula frees the drive to be used by another
> process.  But does not eject the tape.  Each new bacula job will cause a
> rewind of the tape.  But the text is ambiguous to me.  In some places it
> says 'freed' in others it says 'released'.  If it really is released
> then, it should be ejected.
> 
> I definitely do not want it to rewind between each job though, and I
> need the tape that is in the drive at the end of the run, to be put back
> in the changer.  Right now, except for errors, I have to do nothing
> manually to bacula.  I get an email telling me what tapes were used last
> night, and I remove them from the changer, and put new tapes in.  The
> admin jobs take care of the rest.
> 
> How do you interpret its definition?

If you already have admin jobs, it makes sense probably to just use them
and not worry about this config stuff. AlwaysOpen = no does not eject
tapes itself, but it's the combination of OfflineOnUnmount that does it.
Now, if you are not running jobs concurrently and therefore have the
drive sitting around some between jobs, I agree, this is probably a bad
idea to do it the way I've described.

I agree this is a sticking point with the docs. There are places where
it's not obvious what is really meant, and whether it is specific
terminology or English that is being used.

- --
 ---- _  _ _  _ ___  _  _  _
 |Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Systems Programmer II
 |$&| |__| |  | |__/ | \| _| |novosirj AT umdnj DOT edu - 973/972.0922 (2-0922)
 \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630
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