Hi,
On 10/21/2006 4:15 AM, John Felczak wrote:
> Bacula 1.36.3 on Fedora Core 4
Consider upgrading to 1.38. It has some enhancements, and it is much
more likely to get qualified support as many list users dropped 1.36
quite a while ago...
> Exabyte VXA Packetloader 1x10 1U
>
> Bacula seems able to successfully query this autochanger if it's loaded, and
> I can unload it using the unmount command in bconsole, but instead of loading
> the drive when running a backup or restore job, it prompts for a manual mount:
>
> 20-Oct 13:59 sandy-sd: 3301 Issuing autochanger "loaded drive 0" command.
> 20-Oct 13:59 sandy-sd: 3302 Autochanger "loaded drive 0", result: nothing
> loaded.
> 20-Oct 13:59 sandy-sd: RestoreFiles.2006-10-20_13.55.44 Warning:
> acquire.c:146 Couldn't rewind device "VXA-Drive" (/dev/nst0): ERR=dev.c:678
> Rewind error on "VXA-Drive" (/dev/nst0). ERR=No medium found.
>
> 20-Oct 13:59 sandy-sd: Please mount Volume "A0000001" on Storage Device
> "VXA-Drive" (/dev/nst0) for Job RestoreFiles.2006-10-20_13.55.44
> 20-Oct 14:01 sandy-sd: 3301 Issuing autochanger "loaded drive 0" command.
> 20-Oct 14:01 sandy-sd: 3302 Autochanger "loaded drive 0", result: nothing
> loaded.
> 20-Oct 14:01 sandy-sd: RestoreFiles.2006-10-20_13.55.44 Warning:
> acquire.c:146 Couldn't rewind device "VXA-Drive" (/dev/nst0): ERR=dev.c:678
> Rewind error on "VXA-Drive" (/dev/nst0). ERR=No medium found.
>
> 20-Oct 14:01 sandy-sd: Please mount Volume "A0000001" on Storage Device
> "VXA-Drive" (/dev/nst0) for Job RestoreFiles.2006-10-20_13.55.44
>
> Here are the storage definitions from my bacula-sd.conf:
>
> Autochanger {
> Name = "VXA-Library"
> Device = "VXA-Drive"
> Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
> Changer Device = /dev/sg4
> }
Interesting. Are you sure you run 1.36, not 1.38? IIRC, the Autochanger
resource was only implemented with 1.38...
> Device {
> Maximum Changer Wait = 120
> Name = "VXA-Drive"
> Archive Device = /dev/nst0
> Device Type = Tape
> Media Type = "VXA-2"
> Autochanger = Yes
> Changer Device = /dev/sg4
> Drive Index = 0
> Autoselect = yes
> AlwaysOpen = yes
> Removable Media = yes
> Random Access = no
> Label Media = yes
> Automatic Mount = yes;
> }
>
> Isn't that what autochangers are supposed to be for?
>
> BTW, I can load, unload, and do any of the various tape library operations
> from mtx-changer at the command line. The btape test and btape autochanger
> test both pass. The btape multiple tape fill command also fails to load the
> drive, but from what I've seen on the list that's a known btape bug, and
> shouldn't prevent bacula from properly using the autochanger the way it
> doesn't seem to be doing.
>
> If I try unmount and mount commands from bconsole I get the following:
>
> *unmount
> Automatically selected Storage: VXA-Tape
Ah, that's it... it seems like your director configuration doesn't know
about VXA-Library but only references VXA-Tape... If you actually have a
1.38 version running reference the Autochanger device wherever possible,
i.e. everywhere except where you really know why you want a drive, not
the autochanger, addressed.
> Connecting to Storage daemon VXA-Tape at sandy.siderean.com:9103 ...
> 3301 Issuing autochanger "loaded drive 0" command.
> 3302 Autochanger "loaded drive 0", result is Slot 8.
> 3307 Issuing autochanger "unload slot 8, drive 0" command.
> 3001 Device "VXA-Drive" (/dev/nst0) unmounted.
>
>
> *mount
> Automatically selected Storage: VXA-Tape
> 3301 Issuing autochanger "loaded drive 0" command.
> 3302 Autochanger "loaded drive 0", result: nothing loaded.
> 3301 Issuing autochanger "loaded drive 0" command.
> 3302 Autochanger "loaded drive 0", result: nothing loaded.
> 3905 Device "VXA-Drive" (/dev/nst0) open but no Bacula volume is mounted.
> If this is not a blank tape, try unmounting and remounting the Volume.
>
> So bacula seems to know how to unload the drive but not how to load it, and
> there doesn't seem to be any "load" command I can use to tell bconsole to
> load the tape either.
No, there's no load command or anything... you can, to contibue your
backups for example :-) unmount the drive from bconsole, use mtx to load
the next tape, and then mount from bconsole.
>
> Ideas, anyone?
Sure, and I hope they help you.
Arno
> John J. Felczak
> Build & Integration Manager
> Acting IT Manager
> Siderean Software, Inc.
>
>
>
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Arno Lehmann http://www.its-lehmann.de
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