Hi Patti,

My server is running Ubuntu 16.04.2 LTS (64bit), Bacula v7.4.7 and mtx tools 
are at v1.3.12.

As I mentioned in my other post, in reply to Kern's response, I've managed to 
fix the issue by installing full set of magazines into the changer's carousel. 
This immediately caused mtx to properly list the mailslot as IMPORT/EXPORT in 
its output, which was not the case before.

Looks like the problem was caused by some mis-interaction between the 
changer's firmware and mtx. Whether this qualify as a bug I could not say. But 
I would take a note to be careful not to leave any of the carousel faces 
vacant even temporarily, to avoid Bacula suddenly losing track of parts of its 
tape inventory.

--Ivan

On Wednesday, June 28, 2017 06:46:33 PM Clark, Patti wrote:
> Ivan,
> 
> You’ve not indicated what OS that you are using – it’s somewhat difficult to
> say whether your mtx package has a bug.  I’ve never had this issue with mtx
> running on RHEL6.  I don’t see your I/E slot being identified as the I/E
> slot, just a regular slot, which can be done if slots are tight.  It’s a
> configurable parameter on the library itself as are the slots.  It looks
> like a wrap around identification problem.
 
> My library, while not a Qualstar, does identify the I/E slots with the mtx
> command:
 
>  Storage Changer /dev/changer-admin:4 Drives, 280 Slots ( 10 Import/Export
> ) Data Transfer Element 0:Full (Storage Element 189 Loaded):VolumeTag =
> 405128L5 Data Transfer Element 1:Full (Storage Element 227
> Loaded):VolumeTag = 399696L5 Data Transfer Element 2:Full (Storage Element
> 226 Loaded):VolumeTag = 399695L5 Data Transfer Element 3:Full (Storage
> Element 1 Loaded):VolumeTag = 074260L5 Storage Element 1:Empty:VolumeTag=
> Storage Element 2:Full :VolumeTag=074261L5 .
> .
> .                            
>       Storage Element 270:Full :VolumeTag=621469L5 
>       Storage Element 271 IMPORT/EXPORT:Empty:VolumeTag=                    
>       Storage Element 272 IMPORT/EXPORT:Empty:VolumeTag= Storage
> Element 273 IMPORT/EXPORT:Empty:VolumeTag= Storage Element 274
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 275
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 276
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 277
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 278
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 279
> IMPORT/EXPORT:Empty:VolumeTag= Storage Element 280
> IMPORT/EXPORT:Empty:VolumeTag= 
> And Kern, disabling I/E ports, really?  I have used bconsole commands to
> move media to the I/E ports, but I’ve scripted to just change the volume
> location to 0 and inchanger=no, and I use the mtx commands to manage moving
> the volumes to the I/E.  The process is handled in reverse for importing.
 
> Patti Clark
> Sr. Linux System Administrator
> Oak Ridge National Laboratory


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