The thing i can't understand is why the tape created with the new drive works 
perfectly...
Or you're saying that the old drive have never written tape?

Tomorrow i will try to read amanda label on few tapes written by the old 
drive...

-----Messaggio originale-----
Da: owner-amanda-users AT amanda DOT org [mailto:owner-amanda-users AT amanda 
DOT org] Per conto di Gene Heskett
Inviato: lunedì 3 ottobre 2005 17.10
A: amanda-users AT amanda DOT org
Oggetto: Re: R: Question about changing Tape Drive


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).

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
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attorneys please note, additions to the above message by Gene Heskett are: 
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.