Hello all.
I'm trying to run a btape "fill" test, and keep getting the same
message.
The message returned is something similar to the following:
Warning: Requested Volume "TestVolume1" on /dev/st0 is not a Bacula
labeled Volume, because: ERR=block.c:793 Read zero bytes at 0:0 on
device /dev/st0.
24-Aug 09:04 btape: btape Error: mount.c:485 Hey!!!!! WroteVol
non-zero !!!!!
It then prompts me to insert a blank volume.
I have tried using different tapes, as well as performing an 'mt erase'
on them prior to testing, with no change.
I have an Exabyte VXA-2 1x10 PacketLoader, attached to an Adaptec 2940UW
card. The machine is running Linux kernel version 2.6.11.10 on a
Debian/Testing installation, with Bacula 1.36.3 (installed from
Debian-repository packages - 1.36.3-1). I've verified both the changer
and drive work properly with a couple commercial packages, and using tar
to read and write to the tape works as well.
Has anyone seen this before, or something similar? Am I doing something
wrong? I've searched the archives for btape issues, but have come up
empty-handed in relation to this particular problem.
I've attached the output of my btape session, as well as info
from /proc/scsi/scsi and the Device section of my bacula-sd.conf below.
I appreciate all the help I can get! :-)
-----
Jeremy
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
btape -c ./bacula-sd.conf /dev/st0:
Tape block granularity is 1024 bytes.
btape: butil.c:258 Using device: "/dev/st0" for writing.
btape: btape.c:335 open_dev /dev/st0 OK
*test
=== Write, rewind, and re-read test ===
I'm going to write 1000 records and an EOF
then write 1000 records and an EOF, then rewind,
and re-read the data to verify that it is correct.
This is an *essential* feature ...
btape: btape.c:786 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:802 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:811 Rewind OK.
1000 blocks re-read correctly.
Got EOF on tape.
1000 blocks re-read correctly.
=== Test Succeeded. End Write, rewind, and re-read test ===
=== Write, rewind, and position test ===
I'm going to write 1000 records and an EOF
then write 1000 records and an EOF, then rewind,
and position to a few blocks and verify that it is correct.
This is an *essential* feature ...
btape: btape.c:898 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:914 Wrote 1000 blocks of 64412 bytes.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:923 Rewind OK.
Reposition to file:block 0:4
Block 5 re-read correctly.
Reposition to file:block 0:200
Block 201 re-read correctly.
Reposition to file:block 0:999
Block 1000 re-read correctly.
Reposition to file:block 1:0
Block 1001 re-read correctly.
Reposition to file:block 1:600
Block 1601 re-read correctly.
Reposition to file:block 1:999
Block 2000 re-read correctly.
=== Test Succeeded. End Write, rewind, and re-read test ===
=== Append files test ===
This test is essential to Bacula.
I'm going to write one record in file 0,
two records in file 1,
and three records in file 2
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:335 open_dev /dev/st0 OK
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:1052 Now moving to end of medium.
btape: btape.c:482 Moved to end of medium.
We should be in file 3. I am at file 3. This is correct!
Now the important part, I am going to attempt to append to the tape.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:435 Rewound /dev/st0
Done appending, there should be no I/O errors
Doing Bacula scan of blocks:
1 block of 64448 bytes in file 1
End of File mark.
2 blocks of 64448 bytes in file 2
End of File mark.
3 blocks of 64448 bytes in file 3
End of File mark.
1 block of 64448 bytes in file 4
End of File mark.
Total files=4, blocks=7, bytes = 451,136
End scanning the tape.
We should be in file 4. I am at file 4. This is correct!
The above Bacula scan should have output identical to what follows.
Please double check it ...
=== Sample correct output ===
1 block of 64448 bytes in file 1
End of File mark.
2 blocks of 64448 bytes in file 2
End of File mark.
3 blocks of 64448 bytes in file 3
End of File mark.
1 block of 64448 bytes in file 4
End of File mark.
Total files=4, blocks=7, bytes = 451,136
=== End sample correct output ===
If the above scan output is not identical to the
sample output, you MUST correct the problem
or Bacula will not be able to write multiple Jobs to
the tape.
=== Write, backup, and re-read test ===
I'm going to write three records and an EOF
then backup over the EOF and re-read the last record.
Bacula does this after writing the last block on the
tape to verify that the block was written correctly.
This is not an *essential* feature ...
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:665 Wrote first record of 64412 bytes.
btape: btape.c:676 Wrote second record of 64412 bytes.
btape: btape.c:687 Wrote third record of 64412 bytes.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:703 Backspaced over EOF OK.
btape: btape.c:708 Backspace record OK.
btape: btape.c:726
Block re-read correct. Test succeeded!
=== End Write, backup, and re-read test ===
=== Forward space files test ===
This test is essential to Bacula.
I'm going to write five files then test forward spacing
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:1505 Wrote one record of 64412 bytes.
btape: btape.c:1507 Wrote block to device.
btape: btape.c:465 Wrote 1 EOF to /dev/st0
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:1266 Now forward spacing 1 file.
We should be in file 1. I am at file 1. This is correct!
btape: btape.c:1278 Now forward spacing 2 files.
We should be in file 3. I am at file 3. This is correct!
btape: btape.c:435 Rewound /dev/st0
btape: btape.c:1291 Now forward spacing 4 files.
We should be in file 4. I am at file 4. This is correct!
btape: btape.c:1309 Now forward spacing 1 more file.
We should be in file 5. I am at file 5. This is correct!
=== End Forward space files test ===
Ah, I see you have an autochanger configured.
To test the autochanger you must have a blank tape
that I can write on in Slot 1.
Do you wish to continue with the Autochanger test? (y/n): n
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*fill
This command simulates Bacula writing to a tape.
It requires either one or two blank tapes, which it
will label and write.
If you have an autochanger configured, it will use
the tapes that are in slots 1 and 2, otherwise, you will
be prompted to insert the tapes when necessary.
It will print a status approximately
every 322 MB, and write an EOF every 3.2 GB. If you have
selected the simple test option, after writing the first tape
it will rewind it and re-read the last block written.
If you have selected the multiple tape test, when the first tape
fills, it will ask for a second, and after writing a few more
blocks, it will stop. Then it will begin re-reading the
two tapes.
This may take a long time -- hours! ...
Do you want to run the simplified test (s) with one tape
or the complete multiple tape (m) test: (s/m) m
Multiple tape test selected.
24-Aug 09:04 btape: btape Warning: Requested Volume "TestVolume1"
on /dev/st0 is not a Bacula labeled Volume, because: ERR=block.c:793
Read zero bytes at 0:0 on device /dev/st0.
24-Aug 09:04 btape: btape Error: mount.c:485 Hey!!!!! WroteVol
non-zero !!!!!
Mount blank Volume on device /dev/st0 and press return when ready:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
cat /proc/scsi/scsi:
Attached devices:
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: EXABYTE Model: VXA 1x10 1U Rev: A108
Type: Medium Changer ANSI SCSI revision: 04
Host: scsi2 Channel: 00 Id: 01 Lun: 00
Vendor: EXABYTE Model: VXA-2 Rev: 2104
Type: Sequential-Access ANSI SCSI revision: 02
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
bacula-sd.conf Device:
Device {
Name = "Exabyte_Library"
Media Type = "VXA2"
Archive Device = /dev/st0
Random Access = no
Changer Device = /dev/sg2
uChanger Command = "/etc/bacula/scripts/mtx-changer %c %o %S %a %d"
Alert Command = "sh -c 'tapeinfo -f %c | grep TapeAlert|cat'"
Spool Directory = /var/spool/bacula
Maximum Spool Size = 5G
Maximum Job Spool Size = 1G
AutoChanger = yes
Label Media = no
Automatic Mount = yes
Always Open = yes
Removable Media = yes
}
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