I'm getting discouraged with my old MSL6000 autochanger and need some help. It 
runs fine for a week at a time backing up to LTO4 tapes, and then every so 
often I get a job that fails with bacula returning an email with something like:

Fatal error: 3992 Bad autochanger "load slot 11,
drive 0": ERR=Child died from signal 15: Termination.

then when I login to bconsole it starts spitting out this error in a continuous 
loop:

"Error Code=70 (Current) mtx: Request Sense: Sense Key=Hardware Error"

Next day I visit the server room, and the autochanger displays on the OSD:

"Fault code : 3200 (Hard) Shuttle Jammed"

It asks me to reboot and the shuttle can't unload the tape from the drive, then 
displays

"Fault code : 301c (soft)  Drive get general status failure"


At this point there isn't much I can do except stop all bacula services then 
power off the unit once or twice until the activity led on the drive stops 
flashing. Then I rescan the scsi bus, restart bacula, and go another week 
before repeating this whole process again. Any suggestions?

Here is the output from the terminal:




[root@cayenne dev]# mtx -f changer inquiry
Product Type: Medium Changer
Vendor ID: 'HP      '
Product ID: 'MSL6000 Series  '
Revision: '0520'
Attached Changer API: No
[root@cayenne dev]# mtx -f changer status
mtx: Request Sense: Long Report=yes
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Hardware Error
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 15
mtx: Request Sense: Additional Sense Qualifier = 01
mtx: Request Sense: BPV=no
mtx: Request Sense: Error in CDB=no
mtx: Request Sense: SKSV=no
READ ELEMENT STATUS Command Failed
[root@cayenne dev]#
[root@cayenne dev]# lsscsi -g
[1:0:0:0]    disk    IBM      1746      FAStT  1070  /dev/sda   /dev/sg0
[1:0:0:1]    disk    IBM      1746      FAStT  1070  /dev/sdb   /dev/sg1
[1:0:0:2]    disk    IBM      1746      FAStT  1070  /dev/sdc   /dev/sg2
[1:0:0:3]    disk    IBM      1746      FAStT  1070  /dev/sdd   /dev/sg3
[1:0:0:31]   disk    IBM      Universal Xport  1070  -         /dev/sg4
[2:0:0:0]    disk    ATA      ST9500620NS      BE24  /dev/sdf   /dev/sg6
[2:0:1:0]    disk    ATA      ST9500620NS      BE24  /dev/sdg   /dev/sg7
[2:0:2:0]    disk    ATA      ST9500620NS      BE24  -         /dev/sg8
[2:0:3:0]    disk    ATA      ST9500620NS      BE24  -         /dev/sg9
[2:1:0:0]    disk    LSI      Logical Volume   3000  /dev/sde   /dev/sg5
[3:0:0:0]    cd/dvd  MATSHITA DVD-RAM UJ8A0    SA82  /dev/sr0   /dev/sg10
[7:0:0:0]    mediumx HP       MSL6000 Series   0520  /dev/sch0  /dev/sg11
[7:0:0:1]    tape    HP       Ultrium 4-SCSI   B63W  /dev/st0   /dev/sg12
[7:0:0:2]    storage HP       NS E1200-160     5929  -         /dev/sg13

[root@cayenne dev]# vi /etc/bacula/bacula-sd.conf



Autochanger {
  Name = Autochanger
  Device = Drive
  Changer Command = "/usr/libexec/bacula/mtx-changer %c %o %S %a %d"
  #Changer Device = /dev/sch0
  #Changer Device = /dev/sg1
  Changer Device = /dev/sg11
}

#
# A Linux or Solaris LTO-4 tape drive
#
Device {
  Name = Drive
  Media Type = LTO-4
  Archive Device = /dev/st0
  Changer Device = /dev/sg11
  AutomaticMount = yes
  AutoChanger = yes
  Drive Index = 0
  LabelMedia = yes
  AlwaysOpen = yes
  RemovableMedia = yes
  Random Access = no
  #Maximum File Size = 5GB
  #Changer Command = "/usr/libexec/bacula/mtx-changer %c %o %S %a %d"


Thanks.


 (http://postimg.org/image/h6rk2lhw9/)

 (http://postimg.org/image/5k7g1gul5/)

 (http://postimg.org/image/8ps1rod7d/)

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