Kern,
I think I have found the cause of the MTEOM errors that I have been
experiencing from time to time. These MTEOM errors are not caused by Bacula.
In the past few months, I have rebooted my Quantum PX502 library a few
times (once every two months or so) while a tape was mounted in the
drive. This caused the HP (LTO-3 nFC) tape drive in the library to write
an MTEOM marker to the mounted tape, which made it impossible for Bacula
to write beyond that point (although reading was possible).
Basically, Quantum told me to unmount the tape before I ever
powercycle/reboot the library again.
The tapes can be recovered by backing them up and reformatting them (to
get rid of the MTEOM marker).
Basically, my tapes that I thought were bad are actually recoverable.
Cheers,
Mike
Mike Seda wrote:
> I should mention that all of my other tapes are working flawlessly with
> my current setup... I just have this one tape that gives MTEOM errors...
> There was nothing in the system log, but I think I know what caused the
> problem... I accidentally rebooted my bacula server while bacula was
> writing to tape... The reboot operation just hung, and I hard-powered
> the bacula server off since I figured I was screwed anyway... The tape
> clearly didn't like this... I think the tape is slightly damaged... I
> can restore from it, but cannot append to it... How can I move the data
> from this tape onto another? Probably migration, huh?
>
>
> Kern Sibbald wrote:
>
>> On Saturday 31 March 2007 20:38, Mike Seda wrote:
>>
>>
>>> I have a similar MTEOM error with one of my tapes. My drive and other
>>> tapes are totally fine. I can even restore from this tape, but just
>>> cannot append to it. The exact error is below:
>>>
>>> 18-Mar 02:17 uwharrie-sd: Volume "MSR122L3" previously written, moving
>>> to end of data.
>>> 18-Mar 02:35 uwharrie-sd: tsali.2007-03-17_23.05.00 Error: Unable to
>>> position to end of data on device "Drive-1" (/dev/nst0): ERR=dev.c:922
>>> ioctl MTEOM error on "Drive-1" (/dev/nst0). ERR=Input/output error.
>>> 18-Mar 02:35 uwharrie-sd: Marking Volume "MSR122L3" in Error in Catalog.
>>>
>>> My setup is:
>>> Bacula 2.0.1
>>> RHEL 4 AS
>>> Quantum PX502 (FC, 1 HP LTO-3 Drive)
>>>
>>> Any thoughts?
>>>
>>>
>> Anyone who gets MTEOM errors on a tape that has been written with no error
>> messages, has a serious problem -- either improperly configured (tape drive
>> parameters/modes don't agree with those in Bacula's device resource), or
>> hardware problems.
>>
>> Start by looking at your system log and Bacula output for errors. If there
>> are, then they need to be resolved. If not, then it could well be
>> configuration so re-run the 9 (or 10) testing steps documented in the tape
>> testing chapter of the manual.
>>
>>
>>
>>> Julien Cigar wrote:
>>>
>>>
>>>> Bill Moran wrote:
>>>>
>>>>
>>>>
>>>>> In response to Julien Cigar <[EMAIL PROTECTED]>:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> We've bought a new tape drive here, a Sony SDX-700C (AIT-3), with new
>>>>>> tapes. I'm running Bacula 1.38.11 under (Debian) Linux (2.6.18)
>>>>>> I've run the btape test / btape fill with success. The tape is
>>>>>> initialized correctly (variable block mode + ...) :
>>>>>>
>>>>>> phoenix:/home/jcigar# cat /etc/stinit.def
>>>>>> {buffer-writes read-ahead async-writes}
>>>>>>
>>>>>> manufacturer=SONY model = "SDX-700C" {
>>>>>> mode1 blocksize=0 compression=1
>>>>>> }
>>>>>>
>>>>>> phoenix:/home/jcigar# mt -f /dev/nst0 status
>>>>>> SCSI 2 tape drive:
>>>>>> File number=0, block number=0, partition=0.
>>>>>> Tape block size 0 bytes. Density code 0x32 (AIT-3).
>>>>>> Soft error count since last status=0
>>>>>> General status bits on (41010000):
>>>>>> BOT ONLINE IM_REP_EN
>>>>>>
>>>>>> Unfortunately I got an error this morning :
>>>>>>
>>>>>> 01-Feb 03:27 phoenix-sd: Volume "Full-Tape-0001" previously written,
>>>>>> moving to end of data.
>>>>>> 01-Feb 03:27 phoenix-sd: canis-job.2007-02-01_03.00.00 Error: Unable to
>>>>>> position to end of data on device "sony SDX-700C" (/dev/nst0):
>>>>>> ERR=dev.c:839 ioctl MTEOM error on "sony SDX-700C" (/dev/nst0).
>>>>>> ERR=Input/output error.
>>>>>>
>>>>>> 01-Feb 03:27 phoenix-sd: Marking Volume "Full-Tape-0001" in Error in
>>>>>> Catalog.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> I'm a little unclear on certain aspects of this ...
>>>>>
>>>>> Have you made other backups successfully? Did you try a different tape?
>>>>> Sometimes tapes ship from the factory with problems. Is this the same
>>>>> tape that you used for the tests?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> Yes, it runs fine since one month, and it's the same tape I've used for
>>>> the tests (after the test I made an mt -f /dev/nst0 rewind ; mt -f
>>>> /dev/nst0 weof ; mt -f /dev/nst0 rewind ; $> bconsole ; *label).
>>>>
>>>> I will try with another tape to see ...
>>>>
>>>>
>>>>
>>>>
>>>>> We had a drive go bad on us and the errors that Bacula was spewing out
>>>>> were the most cryptic things you could imagine. It became obvious when
>>>>> we visited the datacenter, as the drive had a flashing error code on
>>>>> the front.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>> -------------------------------------------------------------------------
>>> Take Surveys. Earn Cash. Influence the Future of IT
>>> Join SourceForge.net's Techsay panel and you'll get the chance to share your
>>> opinions on IT & business topics through brief surveys-and earn cash
>>> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
>>> _______________________________________________
>>> Bacula-users mailing list
>>> Bacula-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/bacula-users
>>>
>>>
>>>
>
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Bacula-users mailing list
> Bacula-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bacula-users
>
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Bacula-users mailing list
Bacula-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users
