On Thu, Oct 25, 2012 at 11:55 AM, warley <bacula-forum AT backupcentral DOT 
com> wrote:
> Hi guys!
>
> Sometimes the mtx gives some errors, like this one:
>
> root@server1:~# mtx -f /dev/sg2 status
>   Storage Changer /dev/sg2:1 Drives, 8 Slots ( 0 Import/Export )
> Data Transfer Element 0:Empty
>       Storage Element 1:Full :VolumeTag=000001L5
>       Storage Element 2:Full :VolumeTag=000002L5
>       Storage Element 3:Full :VolumeTag=000003L5
>       Storage Element 4:Full :VolumeTag=000004L5
>       Storage Element 5:Full :VolumeTag=000005L5
>       Storage Element 6:Full :VolumeTag=000006L5
>       Storage Element 7:Full :VolumeTag=000007L5
>       Storage Element 8:Full :VolumeTag=000008L5
> root@server1:~# mtx -f /dev/sg2 load 6 /dev/st0 0
> Loading media from Storage Element 6 into drive 0...mtx: Request Sense: Long 
> Report=yes
> mtx: Request Sense: Valid Residual=no
> mtx: Request Sense: Error Code=0 (Unknown?!)
> mtx: Request Sense: Sense Key=No Sense
> mtx: Request Sense: FileMark=no
> mtx: Request Sense: EOM=no
> mtx: Request Sense: ILI=no
> mtx: Request Sense: Additional Sense Code = 00
> mtx: Request Sense: Additional Sense Qualifier = 00
> mtx: Request Sense: BPV=no
> mtx: Request Sense: Error in CDB=no
> mtx: Request Sense: SKSV=no
> MOVE MEDIUM from Element Address 4102 to 257 Failed
> root@server1:~# mtx -f /dev/sg2 status
>   Storage Changer /dev/sg2:1 Drives, 8 Slots ( 0 Import/Export )
> Data Transfer Element 0:Full (Storage Element 6 Loaded):VolumeTag = 000006L5
>       Storage Element 1:Full :VolumeTag=000001L5
>       Storage Element 2:Full :VolumeTag=000002L5
>       Storage Element 3:Full :VolumeTag=000003L5
>       Storage Element 4:Full :VolumeTag=000004L5
>       Storage Element 5:Full :VolumeTag=000005L5
>       Storage Element 6:Empty
>       Storage Element 7:Full :VolumeTag=000007L5
>       Storage Element 8:Full :VolumeTag=000008L5
>
> The first time I run mtx -f /dev/sg2 status. OK
> Then run  mtx -f /dev/sg2 load 6 /dev/st0 0, and i have an error.
> Then lastly run mtx status again and everything seems ok.
> I think this error when loading/unloading is causing errors in bacula.
> Because the mtx-changer will misinterpret the command.
> Is there any way to remove this error?
>

I have seen similar when executing mtx commands when the robot is busy.

John

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