On Tuesday, June 27, 2017 5:42:10 PM EDT Ivan Adzhubey wrote:
> The
> problem I suspect is with the extra I/O slot which this model has, in
> addition to normal slots in the mounted magazines. Mtx command correctly
> reports all magazine slots plus the I/O slot (separately). However, Bacula
> director seems to have issues with the I/O slot

Correction: This should read "Import/Export" (I/E) slot, not I/O slot. Sorry 
about that typo.

Google finds some reports of issues with mtx-changer script failing to 
properly parse I/E slot lines returned by "mtx status" for the changers with 
I/E slots, due to extra "IMPORT/EXPORT" tag inserted. However, my case is the 
opposite since "mtx status" for my changer does not tag the (single) I/E slot 
at all, it just appends one extra slot to the list, so that the last slot 
listed is always a I/E one:

# mtx -f /dev/changer status
  Storage Changer /dev/changer:2 Drives, 45 Slots ( 1 Import/Export )
Data Transfer Element 0:Empty
Data Transfer Element 1:Empty
      Storage Element 1:Full :VolumeTag=A00000L5                        
      Storage Element 2:Full :VolumeTag=A00001L5
<...skipped...>
      Storage Element 34:Full :VolumeTag=A00033L5                        
      Storage Element 35:Full :VolumeTag=A00034L5                        
      Storage Element 36:Full :VolumeTag=A00035L5                        
      Storage Element 37:Empty
      Storage Element 38:Empty
      Storage Element 39:Empty
      Storage Element 40:Empty
      Storage Element 41:Empty
      Storage Element 42:Empty
      Storage Element 43:Empty
      Storage Element 44:Empty
      Storage Element 45:Empty
<end of status command output>

Storage element 45 listed above is in fact the I/E slot. For some reason, 
Bacula flips it with the slot 1, so when I mount slot 1 in bconsole, it mounts 
it as slot 45. However, actual tape from slot 1 is loaded.

--Ivan


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