Hi Carsten,

Carsten Ralle schrieb:
> I had a similar problem and solved it by changing the MySQL database
> manually in the background via a script, in your case you'd need to
> update the Slot, InChanger, Changer and VolStatus and may be the Enabled
> column using two scripts "mount magazine 1" and "mount magazine 2",
> including some email notification.

hmm, that is of course a solution. However, it sounds a little like
spanning horses in front of a car because the motor doesn't work. ;)

> Better solution would be of course to implement a "change magazine"
> message to bacula itself, in case I missed so configuration statements
> please let me know !

As far as I understand it this is what the "inchanger" flag for volumes
is for. In my understanding, as long as this flag is 0 bacula should not
try to make the autochanger load the volume, because it is known not to
be in the changer. I am half willing to call this a bug by now, because
it is pretty clear:

(volume names changed and unnecessary information left out for better
readability)

2 magazines, mag0 and mag1
2 volumes in each magazine, vol1 and vol2.

before error:
volume name |  status  | inchanger | slot
mag0-vol1      APPEND        1        1
mag0-vol2      APPEND        1        2
mag1-vol1      APPEND        0        1
mag1-vol2      APPEND        0        2

now a backup job starts that fills all volumes in mag0 and still needs
more space. Apparently it tries to load the volumes that have
"inchanger" set to 0, and when it does not find them it marks them as
erroneous. (see error messages stated in original posting).

after error:
volume name |  status  | inchanger | slot
mag0-vol1       FULL         1        1
mag0-vol2       FULL         1        2
mag1-vol1      ERROR         0        0
mag1-vol2      ERROR         0        0

As you can see, the slot information for the volumes that are not in the
changer get deleted too. In my understanding, this would even happen to
people who use a real tape changer with magazines, not just the virtual
one. If it does, it most certainly is not desirable behaviour. Could
anyone perhaps confirm or deny this, and maybe post a snippet of your
config? Maybe Carsten and me are just missing some config option...

Best Regards
Mike Follwerk

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