Amanda Group,
I've been running Debian Testing for almost 4 months now without any
issues with chg-scsi binary and my quantum superloader 16 tape library
LTO-3.
Couple of days ago chg-scsi has been unable to access the medium changer.
Details of system and software:
Kernel 2.6.17.7 with SCSI generic support (worked with this kernel)
Debian Linux 3.1 Testing
Amanda-server 2.5.1p1-2
Amanda-client 2.5.1p1-2
Amanda-common 2.5.1p1-2
Checking /proc/scsi/sg/device_strs
CERTANCE ULTRIUM 3 1856
QUANTUM UHDL 0031
dmesg output
<omitted>
ch 1:0:5:1: Attached scsi changer ch1
ch 1:0:5:1: Attached scsi generic sg7 type 8
ls -al /dev/sg7:
crw-rw---- 1 backup root 21, 7 2005-02-25 22:38 /dev/sg7
mtx -f /dev/sg7 status (works correctly)
Storage Changer /dev/sg7:1 Drives, 16 slots ( 0 Import/Export)
Data Transfer Element 0: Full (Storage Element 6 Loaded): VolumeTag = MBW..
Storage Element 1: Full :VolumeTag=MBW...
...
...
...
Storage Element 16: Full :VolutmeTag=MBW...
also mtx -f /dev/sg7 next (works)
Unfortunately:
Output of chg-scsi -info as follows:
chg-scsi: open: /dev/sg7: No such file or directory
<none> open: /dev/sg7: No such file or directory
I've tried running both as root and the backup user.
I've changed user/group permissions.
I have another changer device an Exabyte 7 tape changer library at
/dev/sg4 and if I change the amanda.conf/changer.conf file to point to SG4
chg-scsi -info reports:
13 16 1 1
This is incorrect, because the changer arm is not at the 13th slot, there
isn't a maximum of 16 tape library, tape is not loaded into the drive, and
there is no barcode reader on SG4.
Any other /dev/sg[0-9] other than 4 and CHG-SCSI seg faults.
I have cycled the server, tape drive/changer(s) with no success, changed
Kernel to 2.6.18.2 with no success.
Has there been any changes to chg-scsi from 2.5.0 to 2.5.1? The only thing
I can think of is that I did a package upgrade and that's when things went
downhill. Unfortunately none of my logs are reporting software changes. :(
Also, no noteable changes in the bootup messages have been found to
indicate tape changer behavior.
Anyone have a similar issue or am I to now change to chg-zd-mtx and have
to recreate the label file of the barcode database (such a drag!)
Thanks for any assistance.
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