Mount/Pool Problem

[mh.ro...@gmail.com]

Hi everybody.,

I'm currently doing tests with Bareos (18.2.5-131.1) in order to perform a Backup in a Tape Library (Quantum SuperLoader 3 LTO-6 HH SAS - 16 Slots) and I've been facing a problem for a few days and unfortunately I can't find the solution to the error.

The center of the problem is that if a slot is mounted, then it goes out of the pool, once I put it back into the pool it is unmounted.

Here is the error message I get when it is in the Pool and unmounted:

bareos-sd JobId 1183: Warning: Director wanted Volume "Incremental-0176".
Current Volume "000243L6" not acceptable because:
1998 Volume "000243L6" catalog status is Append, not in Pool.

When it's mounted and out of the pool:

bareos-sd JobId 1180: Warning: stored/mount.cc:270 Open device "Drive-1" (/dev/tape/by-id/scsi-300e09e60001e1d96-nst) Volume "Incremental-0176" failed: ERR=backends/generic_tape_device.cc:146 Unable to open device "Drive-1" (/dev/tape/by-id/scsi-300e09e60001e1d96-nst): ERR=Kein Medium gefunden

Note that when I do the simulation btape + autochanger, it works very well without any error (of course when the slot is mounted)

Here is my config:

root@debian-tape-skg:~# nano /etc/bareos/bareos-dir.d/job/QsanJob.conf

Job {
  Name = "QsanJob"
  Type = Backup
  Level = Full
  Client = bareos-fd
#  FileSet = "SelfTest"                         # selftest fileset  Default nach Installation (#13)
  FileSet = "LinuxAll"                                                  # Appliance
  Schedule = "WeeklyCycle"
  Storage = LTO-Changer
  Messages = Standard
#  Pool = Incremental                                                   # Default nach Installation
  Pool = "LTO-Pool"
  Priority = 10
  Write Bootstrap = "/var/lib/bareos/%c.bsr"
  Full Backup Pool = LTO-Pool
#  Full Backup Pool = Full write Full Backups into "Full" Pool / Default nach Installation         (#05)
#  Differential Backup Pool = Differential              # write Diff Backups into "Differential" Pool / Default nach Installation (#08)
#  Incremental Backup Pool = Incremental                # write Incr Backups into "Incremental" Pool / Default nach Installation (#11)
  RunScript {
    RunsOnSuccess = Yes
    RunsOnClient = Yes
    RunsWhen = After
    Command = "/etc/bareos/rename_tar.sh"
  }
}

root@debian-tape-skg:~# nano /etc/bareos/bareos-dir.d/storage/LTO-Changer.conf

Storage {
  Name = "LTO-Changer"
  Address = "debian-tape-skg"
#  Password = "[md5]7a826c8574f01327c8a63bdc0bb08aa7"
  Password = "ZtKdnygWiToQTAqqjndhv47bXUVt9sGTQl0n6SuqgRFG"
  Device = "Drive-1"
  # AutoChanger = yes
  MediaType = "LTO-6"
  Auto Changer = yes
}

root@debian-tape-skg:/etc/bareos/bareos-sd.d/autochanger/LTO-Changer.conf

Autochanger {
  Name =  LTO-Changer
  Device = Drive-1
  Changer Command = "/usr/lib/bareos/scripts/mtx-changer %c %o %S %a %d"
  #Changer Device = /dev/sg                                                     ###### kann sich ändern, war initial sg1
  Changer Device = /dev/tape/by-id/scsi-3500e09efff0fac22
  # Changer Device = /dev/tape/by-id/scsi-300e09e60001e1d96
}

root@debian-tape-skg:/etc/bareos/bareos-sd.d/device/Drive-1.conf
Device {
  Name = Drive-1                        #
#  DeviceType = tape                    # geändert 06.02.2019
  Drive Index = 0
  Media Type = LTO-6
#  Archive Device = /dev/sg0
  #Archive Device = /dev/nst0
  Archive Device = /dev/tape/by-id/scsi-300e09e60001e1d96-nst
  #Archive Device = /dev/st0
  #Auto Changer = yes
  #Drive Index = 0
  Check Labels = yes                    # geändert 06.02.2019
  AutomaticMount = yes;                 # when device opened, read it
  AlwaysOpen = yes;
  Label Media = yes;
  RemovableMedia = yes;
  RandomAccess = no;
  Autochanger = yes
  MaximumFileSize = 10GB                # geändert 06.02.2019
}

Regards

Mohamed

[mh.ro...@gmail.com]

I found this solution and it may help somebody:

1. Upgrade Bareos

2. Unload in order to unlabel tapes. You can execute this script for this task:

#!/bin/bash

MTX="/usr/lib/bareos/scripts/mtx-changer"
CHANGER="/dev/sg5"
DRIVE="/dev/nst0"

SLOTS="1 2 3 4 5 6 7 8 9 10 11 12 13 14 15"
for i in $SLOTS
do
  $MTX $CHANGER load $i $DRIVE 0
  echo Processing drive rewind...
  mt -f $DRIVE rewind
  echo alles klar
  echo Processing drive weof
  mt -f $DRIVE weof...
  echo alles klar
  $MTX $CHANGER unload $i $DRIVE 0

done

3. Execute label barcodes in order relabel your tapes