Although I had recompiled the kernel and enabled CONFIG_SCSI_MULTI_LUN and
rebooted, apparently it didn't boot the right kernel. Now cat
/proc/scsi/scsi shows a medium changer:
nsb:/etc/bacula# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: LSILOGIC Model: 1030 IM Rev: 1000
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 08 Lun: 00
Vendor: IBM Model: 25P3495a S320 1 Rev: 1
Type: Processor ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 05 Lun: 00
Vendor: CERTANCE Model: ULTRIUM 3 Rev: 1856
Type: Sequential-Access ANSI SCSI revision: 04
Host: scsi2 Channel: 00 Id: 05 Lun: 01
Vendor: QUANTUM Model: UHDL Rev: 0031
Type: Medium Changer ANSI SCSI revision: 02
... which is definitely a step in the right direction.
But: the first time I ran this:
# /etc/bacula/mtx-changer /dev/sg3 list 0 /dev/nst0 0
2:MCL375L3
3:MCL376L3
4:MCL377L3
5:MCL378L3
6:MCL379L3
7:MCL380L3
8:
1:MCL374L3
(There is a cleaning tape in slot 8).
Then I started up bacula and went into bconsole and ran:
update slots
Using default Catalog name=MyCatalog DB=bacula
The defined Storage resources are:
1: File
2: Autochanger
Select Storage resource (1-2): 2
Connecting to Storage daemon Autochanger at 10.10.0.10:9103 ...
3306 Issuing autochanger "slots" command.
Device "Drive1" has 8 slots.
Connecting to Storage daemon Autochanger at 10.10.0.10:9103 ...
3301 Issuing autochanger "loaded drive 0" command.
3302 Autochanger "loaded drive 0", result is Slot 1.
3307 Issuing autochanger "unload slot 1, drive 0" command.
3995 Bad autochanger "unload slot 0, drive 0": ERR=Child exited with code 1.
3306 Issuing autochanger "list" command.
Invalid Slot number: Autochanger error: ERR=Child exited with code 1
No Volumes found to label, or no barcodes.
*label barcode
The defined Storage resources are:
1: File
2: Autochanger
Select Storage resource (1-2): 2
Connecting to Storage daemon Autochanger at 10.10.0.10:9103 ...
3306 Issuing autochanger "slots" command.
Device "Drive1" has 0 slots.
No slots in changer to scan.
So, I quit out of bconsole and stopped bacula and:
/etc/bacula/mtx-changer /dev/sg3 list 0 /dev/nst0 0
cannot open SCSI device '/dev/sg3' - No such device or address
Huh? It was there, now it's gone. Cat /proc/scsi/scsi still shows the
changer:
Host: scsi2 Channel: 00 Id: 05 Lun: 01
Vendor: QUANTUM Model: UHDL Rev: 0031
Type: Medium Changer ANSI SCSI revision: 02
nsb:/etc/bacula# l /dev/sg*
crw-rw---- 1 root disk 21, 0 Sep 11 07:12 /dev/sg0
crw-rw---- 1 root disk 21, 1 Sep 11 07:12 /dev/sg1
crw-rw---- 1 root disk 21, 2 Sep 11 07:13 /dev/sg2
crw-rw---- 1 root disk 21, 3 Sep 11 07:13 /dev/sg3
So the device is still there.
I hate computers.
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