Re: [Bacula-users] Error when writng to LTO-Ultrium 3 cartridge

Hi,

21.04.2008 17:57, Matias Banchoff wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hello,
>       I have a problem with a LTO-Ultrium 3 cartridge. The problem is Bacula
> can't write it, it prints the following error:
> ...
> dmesg prints the following (st1 is my tape - I have another, st0, but
> that's ok):
> - 
> -----------------------------------------------------------------------------------------------------
> [11475299.197000] st1: Error with sense data: <6>st1: Current: sense
> key: Medium Error
> [11475299.197000]     Additional sense: Write error
> [11475329.545000] st1: Error with sense data: <6>st1: Current: sense
> key: Medium Error
> [11475329.545000]     Additional sense: Write error
...
> I think the cartridge is the problem, but how can I probe it? Is there
> any tool or command to test cartridges without destoying its data?

Trust the drive... if it reports the tape as broken it's usually right.

The log snippet from above would be explicit enough for me.

> By the way, there is an old post
> http://www.mail-archive.com/bacula-users AT lists.sourceforge DOT 
> net/msg24654.html
> ~ where it says that a volume with a state "error" can only be changed to
> "append" after it is recycled:
> - -------------------------------------------------------------------------
> "When a tape is in Error status you can not append. To reuse the tape
> you must recycle the tape (removing any backup jobs on the tape) if
> you want to add data to the tape."
> - -------------------------------------------------------------------------
> Is it true? Can't I just change the status using the update command?

Yes, but that won't help you - what you observe is not a Bacula issue 
- Bacula simply handles the error reported by the OS - but a hardware 
problem.

Arno

-- 
Arno Lehmann
IT-Service Lehmann
www.its-lehmann.de

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