Hello,
I'm having trouble installing bacula 7.4.3 on a SuSE LEAP 42.1
64 bit system with kernel 4.1.26-21-default on an LTO6 tape
library.
Btape's "test" and "autochanger" tests successful, but the multi-volume
"fill" test is failing. I was hoping some kind person could make some
suggestions about how to fix this.
I interpret btape to be saying it is having trouble re-reading the
last block it wrote to a tape after loading a tape. Maybe it's having
trouble positioning to the correct spot on the tape.
I decided this isn't an issue with the physical end of tape, because
I tried setting "Maximum Volume Size = 10G" (which makes the fill test
run a lot faster,) and encountered the exact same problem.
At one point, I also unsuccessfully tried using stinit to change tape
drive properties with guidance from:
http://www.bacula.org/5.2.x-manuals/en/problems/problems/Testing_Your_Tape_Drive.html#SECTION00434000000000000000
manufacturer=IBM model = "ULTRIUM-TD6" {
scsi2logical=1
sysv=0
read-ahead=1
buffering=1
async-writes=1
mode1 blocksize=0 compression=1 }
I google'd this problem and found that some people with FreeBSD
fixed a similar problem by setting "BSF at EOM = yes". That isn't my
problem however, because When I set that option in bacula-sd.conf,
btape's "test" fails.
Here's some output from mt on the tape drive:
mt -f /dev/st0 status
drive type = Generic SCSI-2 tape
drive status = 1509949440
sense key error = 0
residue count = 0
file number = 0
block number = 0
Tape block size 0 bytes. Density code 0x5a (unknown).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
Here's the output from btape fill:
.
.
.
Wrote block=9600000, file,blk=504,6280 VolBytes=2,516,582,137,856 rate=144.8
MB/s
Wrote block=9605000, file,blk=504,11280 VolBytes=2,517,892,857,856 rate=144.8
MB/s
02-Aug 21:20 btape JobId 0: End of Volume "TestVolume1" at 504:14969 on device
"TAPE01" (/dev/nst0). Write of 262144 bytes got -1.
02-Aug 21:20 btape JobId 0: Re-read of last block succeeded.
btape: btape.c:2712-0 Last block at: 504:14968 this_dev_block_num=14969
btape: btape.c:2747-0 End of tape 504:0. Volume Bytes=2,518,859,907,072. Write
rate = 144.7 MB/s
02-Aug 21:20 btape JobId 0: End of medium on Volume "TestVolume1"
Bytes=2,518,859,907,072 Blocks=9,608,688 at 02-Aug-2016 21:20.
02-Aug 21:20 btape JobId 0: 3307 Issuing autochanger "unload slot 1, drive 0"
command for vol TestVolume1.
02-Aug 21:22 btape JobId 0: 3304 Issuing autochanger "load slot 2, drive 0"
command for vol TestVolume2.
02-Aug 21:23 btape JobId 0: 3305 Autochanger "load slot 2, drive 0", status is
OK for vol TestVolume2.
Wrote Volume label for volume "TestVolume2".
02-Aug 21:24 btape JobId 0: Wrote label to prelabeled Volume "TestVolume2" on
tape device "TAPE01" (/dev/nst0)
02-Aug 21:24 btape JobId 0: New volume "TestVolume2" mounted on device "TAPE01"
(/dev/nst0) at 02-Aug-2016 21:24.
btape: btape.c:2315-0 Wrote 1000 blocks on second tape. Done.
Done writing 0 records ...
Wrote End of Session label.
btape: btape.c:2384-0 Wrote state file last_block_num1=14968
last_block_num2=1001
btape: btape.c:2402-0
21:24:11 Done filling tapes at 0:1003. Now beginning re-read of first tape ...
btape: btape.c:2480-0 Enter do_unfill
02-Aug 21:24 btape JobId 0: 3307 Issuing autochanger "unload slot 2, drive 0"
command for vol TestVolume1.
02-Aug 21:25 btape JobId 0: 3304 Issuing autochanger "load slot 1, drive 0"
command for vol TestVolume1.
02-Aug 21:26 btape JobId 0: 3305 Autochanger "load slot 1, drive 0", status is
OK for vol TestVolume1.
02-Aug 21:26 btape JobId 0: Ready to read from volume "TestVolume1" on tape
device "TAPE01" (/dev/nst0).
Rewinding.
Reading the first 10000 records from 0:0.
10000 records read now at 1:1251
Reposition from 1:1251 to 504:14968
Reading block 14968.
The blocks differ at byte 0
!!!! The last block written and the block
that was read back differ. The test FAILED !!!!
This must be corrected before you use Bacula
to write multi-tape Volumes.!!!!
02-Aug 21:28 btape JobId 0: 3307 Issuing autochanger "unload slot 1, drive 0"
command for vol TestVolume2.
02-Aug 21:30 btape JobId 0: 3304 Issuing autochanger "load slot 2, drive 0"
command for vol TestVolume2.
02-Aug 21:31 btape JobId 0: 3305 Autochanger "load slot 2, drive 0", status is
OK for vol TestVolume2.
02-Aug 21:31 btape JobId 0: Ready to read from volume "TestVolume2" on tape
device "TAPE01" (/dev/nst0).
Reposition from 0:0 to 0:1
Reading block 1.
The first block on the second tape matches.
Reposition from 0:2 to 0:1001
Reading block 1001.
The blocks differ at byte 0
!!!! The last block written and the block
that was read back differ. The test FAILED !!!!
This must be corrected before you use Bacula
to write multi-tape Volumes.!!!!
btape: btape.c:2407-0 do_unfill failed.
Here's the pertinent parts of bacula-sd.conf:
Device {
Name = TAPE01
Media Type = LTO
Archive Device = /dev/nst0
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = yes;
RemovableMedia = yes;
RandomAccess = no;
# Maximum Volume Size = 10G
# Maximum File Size = 5GB
# Maximum Block Size = 262144
## Changer Command = "/usr/local/bacula-7.4.3/etc/mtx-changer %c %o %S %a %d"
# Changer Device = /dev/sg4
AutoChanger = yes
DriveIndex = 0
# Enable the Alert command only if you have the mtx package loaded
# Alert Command = "sh -c '/usr/local/bacula/sbin/tapeinfo -f %c |grep TapeAlert|
cat'"
# If you have smartctl, enable this, it has more info than tapeinfo
Alert Command = "sh -c '/usr/sbin/smartctl -H -l error %c'"
}
Device {
Name = TAPE02
Media Type = LTO
Archive Device = /dev/nst1
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = yes;
RemovableMedia = yes;
RandomAccess = no;
# Maximum Volume Size = 10G
# Maximum File Size = 5GB
# Maximum Block Size = 262144
## Changer Command = "/usr/local/bacula-7.4.3/etc/mtx-changer %c %o %S %a %d"
# Changer Device = /dev/sg4
AutoChanger = yes
DriveIndex = 1
# Enable the Alert command only if you have the mtx package loaded
# Alert Command = "sh -c '/usr/local/bacula/sbin/tapeinfo -f %c |grep TapeAlert|
cat'"
# If you have smartctl, enable this, it has more info than tapeinfo
Alert Command = "sh -c '/usr/sbin/smartctl -H -l error %c'"
}
Autochanger {
Name = tl5
Device = TAPE01
Device = TAPE02
Changer Command = "/usr/local/bacula-7.4.3/etc/mtx-changer %c %o %S %a %d"
Changer Device = /dev/sg4
}
I'm running out of ideas here. Any assistance would be appreciated.
--
Pete Szaban, Graphics/Network Analyst & Tech. | (413) 782-1239
Western New England University | pszaban AT wne DOT edu
Springfield, Ma. 01119
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