Hi,
21.07.2008 13:18, Nils Blanck-Wehde wrote:
> Hello list,
>
> I am doning a daily backup to tape. We have a Quantum Superloader 3 DLT
> with 16 Slots.
> This is the storage ressource:
>
> Autochanger {
> Name = QS3DLT
> Device = DLT-Drive-1
> Changer Command = "/usr/lib/bacula/mtx-changer %c %o %S %a %d"
> Changer Device = /dev/sg3
> }
>
> Device {
> Name = DLT-Drive-1 #
> Drive Index = 0
> Media Type = DLT-VS1
> Archive Device = /dev/nst0
> AutomaticMount = yes; # when device opened, read it
> AlwaysOpen = no;
I'd set this to 'yes' and ...
> RemovableMedia = yes;
> RandomAccess = no;
> AutoChanger = yes
> }
>
> Each tape is used only once und recycled after 7 weeks, this is the
> pool-ressource:
>
> Pool {
> Name = "Weekly_Full_Backup_to_DLT"
> Pool Type = Backup
> Maximum Volume Jobs = 1
> Volume Retention = 7 weeks
> Recycle = yes
> AutoPrune = yes
> Cleaning Prefix = "CNV760"
> }
>
>
> After each backup, I want to export the last used tape to the mailslot.
> As mtx doesn't recognise the mailslot of this device, I have to do this
> via the Webfrontend of the library.
... before unloading the tape, issue an 'unmount' or 'release' to the
device.
You could do both in a script called as a run after job script in the
last backup or an extra admin job, btw. (webinject might be one tool
to get the autochanger web interface useable in a script).
Note that, after an 'umount', you need to explicitly mount the drive
later, which is not required if using 'release'.
Arno
> After the manual export I am issuing "update slots" on the
> Autochanger-device to let bacula know of the changes.
> Still "status storage" still shows the removed volume as "in use" in
> drive 0:
> Device status:
> Autochanger "QS3DLT" with devices:
> "DLT-Drive-1" (/dev/nst0)
> Device "FileStorage_SATA-RAID1-MD1" (/var/bacula/File-Storage) is not open.
> Device "DLT-Drive-1" (/dev/nst0) is not open.
> Slot 2 is loaded in drive 0.
> Device "DVD Writer" (/dev/hda) is not open.
> ====
>
> In Use Volume status:
> CNV762 on device "DLT-Drive-1" (/dev/nst0)
> Reader=0 writers=0 devres=0 volinuse=0
> ====
>
> When the next backup starts, bacula tries to unload the tape (that isn't
> present any more), fails, checks whether there ist anything loaded at
> all and then loads the correct next tape:
>
> 21-Jul 13:09 WEFIS_bacula-sd JobId 109: 3307 Issuing autochanger "unload slot
> 2, drive 0" command.
> 21-Jul 13:09 WEFIS_bacula-sd JobId 109: 3995 Bad autochanger "unload slot 2,
> drive 0": ERR=Child exited with code 1
> Results=Data Transfer Element 0 is Empty
>
> 21-Jul 13:09 company_bacula-sd JobId 109: 3301 Issuing autochanger "loaded?
> drive 0" command.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3302 Autochanger "loaded? drive 0",
> result: nothing loaded.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3301 Issuing autochanger "loaded?
> drive 0" command.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3302 Autochanger "loaded? drive 0",
> result: nothing loaded.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3301 Issuing autochanger "loaded?
> drive 0" command.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3302 Autochanger "loaded? drive 0",
> result: nothing loaded.
> 21-Jul 13:09 company_bacula-sd JobId 109: 3304 Issuing autochanger "load slot
> 3, drive 0" command.
> 21-Jul 13:11 company_bacula-sd JobId 109: 3305 Autochanger "load slot 3,
> drive 0", status is OK.
>
>
> I am wondering whether this is how it's supposed to work or if I somehow
> should tell bacula, that the drive was unloaded. I tried "unmount"
> before but I didn't know how to remount the device afterwards because
> that would mean I had to load a tape and I didn't want to confuse bacula...
>
> Thanks for any hints!
>
> Nils
>
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--
Arno Lehmann
IT-Service Lehmann
www.its-lehmann.de
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