Keith Hopkins (Bacula) wrote:
Hi list,
I have two Compaq(Digital) StorageWorks TL892 mini-libraries
(TL892=TL891 with 2x DLT7000 drives). When I run the autochanger test
in btape, it always hangs while waiting for a tape to load. The tape
gets loaded, it spends a while calibrating in the drive (about 45
seconds), then the drive goes 'IDLE' (per the mini-lib's LCD). btape
doesn't seem to recognize the tape is ready, and instead times out.
The test falls into a loop, extending the time out 30 sec each time,
but it fails in the same spot (open/rewind) again and again. This
happens on both libs/all 4 drives. Any clues on how to work around this?
I'm using the bacula-mysql-1.38.9-1 rpm for SuSE10 dl from
sourceforge. The machine is a AMD K7 1.4G, 1.5G SDRAM, IDE. The
drives libs/drives are attached via two Adaptec 2944UW cards. Kernel
is 2.6.13-15.8-default from SuSE. The only unusual thing from dmesg
is "MTSETDRVBUFFER only allowed for root."
# btape -d 4 -c ./bacula-sd.conf DLT01 -v
(tape test runs without error)
=== Autochanger test ===
3301 Issuing autochanger "loaded" command.
Slot 2 loaded. I am going to unload it.
3302 Issuing autochanger "unload 2 1" command.
unload status=OK 0
3303 Issuing autochanger "load 1 1" command.
3303 Autochanger "load 1 1" status is OK.
08-May 19:12 btape: 3301 Issuing autochanger "loaded drive 1" command.
08-May 19:12 btape: 3302 Autochanger "loaded drive 1", result is Slot 1.
btape: btape.c:338 open device "DLT01" (/dev/nst1): OK
08-May 19:12 btape: 3301 Issuing autochanger "loaded drive 1" command.
08-May 19:12 btape: 3302 Autochanger "loaded drive 1", result is Slot 1.
btape: btape.c:1198 Bad status from rewind. ERR=dev.c:678 Rewind error
on "DLT01" (/dev/nst1). ERR=Input/output error.
While it is waiting with the drive in the idle state:
# lsof /dev/nst1
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
btape 6039 root 3u CHR 9,129 15362 /dev/nst1
# mtst -f /dev/nst1
/dev/nst1: Device or resource busy
/etc/bacula/bacula-sd.conf
Autochanger {
Name = TL891Left
Device = DLT00
Device = DLT01
Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
Changer Device = /dev/sg0
}
Autochanger {
Name = TL891Right
Device = DLT02,DLT03
Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
Changer Device = /dev/sg3
}
Device {
Name = DLT00
Archive Device = /dev/nst0
Device Type = Tape
Media Type = DLT7000
AutoChanger = Yes
Drive Index = 0
AutoSelect = Yes
Maximum Changer Wait = 180
Maximum Rewind Wait = 180
Maximum Open Wait = 180
AlwaysOpen = Yes
Maximum Open Wait = 180
Removable media = Yes
Random access = No
Automatic Mount = Yes
}
Device {
Name = DLT01
Archive Device = /dev/nst1
Device Type = Tape
Media Type = DLT7000
AutoChanger = Yes
Drive Index = 1
AutoSelect = Yes
Maximum Changer Wait = 180
Maximum Rewind Wait = 180
Maximum Open Wait = 180
AlwaysOpen = Yes
Maximum Open Wait = 180
Removable media = Yes
Random access = No
Automatic Mount = Yes
}
Device {
Name = DLT02
Archive Device = /dev/nst2
Device Type = Tape
Media Type = DLT7000
AutoChanger = Yes
Drive Index = 0
AutoSelect = Yes
Maximum Changer Wait = 180
Maximum Rewind Wait = 180
Maximum Open Wait = 180
AlwaysOpen = Yes
Maximum Open Wait = 180
Removable media = Yes
Random access = No
Automatic Mount = Yes
}
Device {
Name = DLT03
Archive Device = /dev/nst3
Device Type = Tape
Media Type = DLT7000
AutoChanger = Yes
Drive Index = 1
AutoSelect = Yes
Maximum Changer Wait = 180
Maximum Rewind Wait = 180
Maximum Open Wait = 180
AlwaysOpen = Yes
Maximum Open Wait = 180
Removable media = Yes
Random access = No
Automatic Mount = Yes
}
I do see where someone has the TL891 working under FreeBSD
(http://www.freebsddiary.org/digital-tl891.php)
--
Keith
For what it's worth, the drive status during calibration is:
# mtst -f /dev/nst0 status
SCSI 2 tape drive:
File number=-1, block number=-1, partition=0.
Tape block size 0 bytes. Density code 0x0 (default).
Soft error count since last status=0
General status bits on (10000):
IM_REP_EN
and after it does to an idle state, it is:
# mtst -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x1b (DLT 35GB).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
--Keith
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