Bacula-users

Re: [Bacula-users] Catastrophic error. Cannot write overflow block to device "LTO4"

2011-07-12 06:40:34
Subject: Re: [Bacula-users] Catastrophic error. Cannot write overflow block to device "LTO4"
From: Martin Simmons <martin AT lispworks DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 12 Jul 2011 11:38:22 +0100
>>>>> On Mon, 11 Jul 2011 16:00:15 -0500, Steve Costaras said:
> Authentication-Results:  cm-omr4 smtp.user=stevecs AT chaven DOT com; 
> auth=pass (CRAM-MD5)
> 
> On 2011-07-11 06:13, Martin Simmons wrote:
> >>>>>> On Sun, 10 Jul 2011 12:17:55 +0000, Steve Costaras said:
> >> Importance: Normal
> >> Sensitivity: Normal
> >>
> >> I am trying a full backup/multi-job to a single client and all was going 
> >> well until this morning when I received the error below.   All other jobs 
> >> were also canceled.
> >>
> >> My question is two fold:
> >>
> >> 1) What the heck is this error?  I can unmount the drive, issue a rawfill 
> >> to
> >> the tape w/ btape and no problems?
> >> ...
> >> 3000 OK label. VolBytes=1024 DVD=0 Volume="FA0016" Device="LTO4" 
> >> (/dev/nst0)
> >> Requesting to mount LTO4 ...
> >> 3905 Bizarre wait state 7
> >> Do not forget to mount the drive!!!
> >> 2011-07-10 03SD-loki JobId 6: Wrote label to prelabeled Volume "FA0016" on 
> >> device "LTO4" (/dev/nst0)
> >> 2011-07-10 03SD-loki JobId 6: New volume "FA0016" mounted on device "LTO4" 
> >> (/dev/nst0) at 10-Jul-2011 03:51.
> >> 2011-07-10 03SD-loki JobId 6: Fatal error: block.c:439 Attempt to write on 
> >> read-only Volume. dev="LTO4" (/dev/nst0)
> >> 2011-07-10 03SD-loki JobId 6: End of medium on Volume "FA0016" Bytes=1,024 
> >> Blocks=0 at 10-Jul-2011 03:51.
> >> 2011-07-10 03SD-loki JobId 6: Fatal error: Job 6 canceled.
> >> 2011-07-10 03SD-loki JobId 6: Fatal error: device.c:192 Catastrophic 
> >> error. Cannot write overflow block to device "LTO4" (/dev/nst0). 
> >> ERR=Input/output error
> > Do you regularly see the "3905 Bizarre wait state 7" message?  It could be 
> > an
> > indication of problems (and everything after that could be a consequence of
> > it).
> >
> > What are the messages that lead up to that point?
> Nothing, really, this was the 17th tape in a row on a ~3day (so far) 
> backup.    No messages in /var/log/messages.   Previous messages from 
> bacula are below as you can see it just blows chunks right after FA0016 
> is mounted, all concurrent jobs are killed.    And I've tested that tape 
> before the backup ran and again right after this failure with btape.   
> no problems.

Yes, that looks mostly normal.

I would report that log output as a bug at bugs.bacula.org.

I'm a little surprised that it specifically asked for the volume named FA0016
though:

  2011-07-10 03SD-loki JobId 6: Please mount Volume "FA0016" or label a new one 
for:

but you then issued the label command for that volume.

Was FA0016 in the database already?  If not, how did bacula predict the name?

__Martin

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