On Monday 03 October 2005 08:03, Montagni, Giovanni wrote:
>This is the output of dd command:
>
>[root@auriga root]# dd if=/dev/nst0 bs=32k count=1
>0+0 records in
>0+0 records out
>
>I also tried to set blocksize to 0 (mt -t /dev/st0 setblk 0 or mt -t
> /dev/nst0 setblk 0) but nothing has changed... The tape was on the
> beginning, as i can see with mt -t /dev/st0 status. This means that the
> old drive stopped to write anything on tape? but amanda report that the
> backup was executed correctly. In addiction, old drive can read amanda
> label.
>
Contact the vendor, that drive is caca.
>
>
>-----Messaggio originale-----
>Da: Paul Bijnens [mailto:paul.bijnens AT xplanation DOT com]
>Inviato: venerdì 30 settembre 2005 10.34
>A: Montagni, Giovanni
>Cc: amanda-users AT amanda DOT org
>Oggetto: Re: Question about changing Tape Drive
>
>Montagni, Giovanni wrote:
>> I have changed our tape drive, because it started to fail to write on
>> tape. I have changed it with the same model.
>>
>> After sostitution, amanda cannot recognise the tape, every day it give
>> me error like "Not an amanda tape", and i have to amrmtape then
>> amlabel the tape again.
>>
>> Is it possible to solve this problem?
>
>First, can you read the tape with "dd"?
>Try to read the label:
>
>   dd if=/dev/st0 bs=32k count=1
>
>Is the label you see correct?
>
>A frequent problem is blocksize difference.
>
>I work in variable blocksize.
>On linux:
>  mt -t /dev/st0 defblksize 0  # add this in /etc/rc.*/* somewhere
>  mt -t /dev/st0 setblk 0      # or this just before handling tape
>
>If your tapes were written with a fixed blocksize, you should
>use that value again (or relabel the tapes, and switch to variable
>blocksize).

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