On 17/10/08 12:33, Martijn de Munnik wrote:
> I really don't know how to solve this problem? Why is bacula unable to
> move to the end of data?
It has sometimes happened to me also. Maybe it's because the tape is positioned
different from where Bacula believes it is. Try to change the error flag to
append and see if it will be accepted by Bacula. I have several times been able
to cure the problem this way.
>
>
> On Oct 15, 2008, at 12:22 AM, Bacula wrote:
>
>> 15-Oct 00:05 chet-dir JobId 754: Start Backup JobId 754,
>> Job=Home_Directories_Job_Chet.2008-10-15_00.05.06
>> 15-Oct 00:05 chet-sd JobId 754: 3307 Issuing autochanger "unload
>> slot 3, drive 0" command.
>> 15-Oct 00:08 chet-dir JobId 754: Using Device "ExabyteVXA-2Drive"
>> 15-Oct 00:08 chet-sd JobId 754: 3301 Issuing autochanger "loaded?
>> drive 0" command.
>> 15-Oct 00:08 chet-sd JobId 754: 3302 Autochanger "loaded? drive 0",
>> result: nothing loaded.
>> 15-Oct 00:08 chet-sd JobId 754: 3304 Issuing autochanger "load slot
>> 1, drive 0" command.
>> 15-Oct 00:08 chet-sd JobId 754: 3305 Autochanger "load slot 1, drive
>> 0", status is OK.
>> 15-Oct 00:08 chet-sd JobId 754: 3301 Issuing autochanger "loaded?
>> drive 0" command.
>> 15-Oct 00:08 chet-sd JobId 754: 3302 Autochanger "loaded? drive 0",
>> result is Slot 1.
>> 15-Oct 00:08 chet-sd JobId 754: Volume "A0000001" previously
>> written, moving to end of data.
>> 15-Oct 00:15 chet-sd JobId 754: Error: Unable to position to end of
>> data on device "Exabyte VXA-2 Drive" (/dev/rmt/0cbn): ERR=dev.c:1326
>> read error on "Exabyte VXA-2 Drive" (/dev/rmt/0cbn). ERR=I/O error.
>>
>> 15-Oct 00:15 chet-sd JobId 754: Marking Volume "A0000001" in Error
>> in Catalog.
>> 15-Oct 00:15 chet-dir JobId 754: Recycled volume "A0000004"
>> 15-Oct 00:15 chet-sd JobId 754: 3307 Issuing autochanger "unload
>> slot 1, drive 0" command.
>> 15-Oct 00:16 chet-sd JobId 754: 3304 Issuing autochanger "load slot
>> 4, drive 0" command.
>> 15-Oct 00:17 chet-sd JobId 754: 3305 Autochanger "load slot 4, drive
>> 0", status is OK.
>> 15-Oct 00:17 chet-sd JobId 754: 3301 Issuing autochanger "loaded?
>> drive 0" command.
>> 15-Oct 00:17 chet-sd JobId 754: 3302 Autochanger "loaded? drive 0",
>> result is Slot 4.
>> 15-Oct 00:17 chet-sd JobId 754: Recycled volume "A0000004" on device
>> "Exabyte VXA-2 Drive" (/dev/rmt/0cbn), all previous data lost.
>> 15-Oct 00:22 chet-sd JobId 754: Job write elapsed time = 00:04:37,
>> Transfer rate = 4.819 M bytes/second
>
> My device config in bacula-sd.conf, system is Solaris 10 on x86 (Sun
> V20Z) with an Exabyte VXA2 library.
>
> Autochanger {
> Name = "Exabyte VXA-2 PacketLoader 1x10"
> Device = "Exabyte VXA-2 Drive"
> Changer Device = /dev/scsi/changer/c2t0d0
> Changer Command = "/opt/csw/etc/bacula/mtx-changer %c %o %S %a %d"
> }
>
> Device {
> Name = "Exabyte VXA-2 Drive"
> Drive Index = 0
> Media Type = "VXA-2"
> Device Type = Tape
> Archive Device = /dev/rmt/0cbn
> AutomaticMount = yes
> AlwaysOpen = yes
> RemovableMedia = yes
> RandomAccess = no
> AutoChanger = yes
> Changer Command = "/opt/csw/etc/bacula/mtx-changer %c %o %S %a %d"
> Alert Command = "sh -c '/opt/csw/sbin/tapeinfo -f %c |grep
> TapeAlert|cat'"
> Changer Device = /dev/scsi/changer/c2t0d0
> Label Media = yes
> Offline On Unmount = no
> Hardware End of Medium = no
> BSF at EOM = yes
> Backward Space Record = no
> Fast Forward Space File = no
> Two EOF = yes
> }
>
> Output of test:
>
> [munnik@chet]{/opt/csw/bin}>sudo /opt/csw/sbin/btape -c /opt/csw/etc/
> bacula/bacula-sd.conf /dev/rmt/0cbn
> Tape block granularity is 1024 bytes.
> btape: butil.c:285 Using device: "/dev/rmt/0cbn" for writing.
> 17-Oct 12:22 btape JobId 0: 3301 Issuing autochanger "loaded? drive 0"
> command.
> 17-Oct 12:22 btape JobId 0: 3302 Autochanger "loaded? drive 0", result
> is Slot 4.
> 17-Oct 12:23 btape JobId 0: 3301 Issuing autochanger "loaded? drive 0"
> command.
> 17-Oct 12:23 btape JobId 0: 3302 Autochanger "loaded? drive 0", result
> is Slot 4.
> btape: btape.c:372 open device "Exabyte VXA-2 Drive" (/dev/rmt/0cbn): 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:831 Wrote 1000 blocks of 64412 bytes.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:847 Wrote 1000 blocks of 64412 bytes.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:856 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:943 Wrote 1000 blocks of 64412 bytes.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:959 Wrote 1000 blocks of 64412 bytes.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:968 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:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> 17-Oct 12:25 btape JobId 0: 3301 Issuing autochanger "loaded? drive 0"
> command.
> 17-Oct 12:25 btape JobId 0: 3302 Autochanger "loaded? drive 0", result
> is Slot 4.
> btape: btape.c:372 open device "Exabyte VXA-2 Drive" (/dev/rmt/0cbn): OK
> btape: btape.c:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1097 Now moving to end of medium.
> btape: btape.c:526 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:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> 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.
>
> Skipping read backwards test because BSR turned off.
>
>
> === Forward space files test ===
>
> This test is essential to Bacula.
>
> I'm going to write five files then test forward spacing
>
> btape: btape.c:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1577 Wrote one record of 64412 bytes.
> btape: btape.c:1579 Wrote block to device.
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:505 Wrote 1 EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1311 Now forward spacing 1 file.
> We should be in file 1. I am at file 1. This is correct!
> btape: btape.c:1323 Now forward spacing 2 files.
> We should be in file 3. I am at file 3. This is correct!
> btape: btape.c:475 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1336 Now forward spacing 4 files.
> We should be in file 4. I am at file 4. This is correct!
>
> btape: btape.c:1354 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): y
>
>
> === Autochanger test ===
>
> 3301 Issuing autochanger "loaded" command.
> Slot 4 loaded. I am going to unload it.
> 3302 Issuing autochanger "unload 4 0" command.
> unload status=OK 0
> 3303 Issuing autochanger "load 1 0" command.
> 3303 Autochanger "load 1 0" status is OK.
> 17-Oct 12:30 btape JobId 0: 3301 Issuing autochanger "loaded? drive 0"
> command.
> 17-Oct 12:30 btape JobId 0: 3302 Autochanger "loaded? drive 0", result
> is Slot 1.
> btape: btape.c:372 open device "Exabyte VXA-2 Drive" (/dev/rmt/0cbn): OK
> btape: btape.c:1241 Rewound "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
> btape: btape.c:1248 Wrote EOF to "Exabyte VXA-2 Drive" (/dev/rmt/0cbn)
>
> The test autochanger worked!!
--
Erik.
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