Amanda-Users

Re: Question about changing Tape Drive

2005-09-30 04:42:59
Subject: Re: Question about changing Tape Drive
From: Paul Bijnens <paul.bijnens AT xplanation DOT com>
To: "Montagni, Giovanni" <gmontagni AT manord DOT com>
Date: Fri, 30 Sep 2005 10:34:03 +0200
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).



--
Paul Bijnens, Xplanation                            Tel  +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM    Fax  +32 16 397.512
http://www.xplanation.com/          email:  Paul.Bijnens AT xplanation DOT com
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