Bacula-users

[Bacula-users] How to recover wrong overwritten tape?

2010-10-13 06:19:13
Subject: [Bacula-users] How to recover wrong overwritten tape?
From: Simone Martina <smartina AT noc.skylogicnet DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Wed, 13 Oct 2010 12:15:17 +0200
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Hi at all,
this (sad) morning I've tried to append a job to a used volume (a tape):
despite I've tried to update status, job retention and so on, Bacula
marks that tape like purgeable and begin to write the new data on the
beginning of the tape.
When I see that situation, I've cancelled the jobs, but the damage was
just done. Anyway, I've written only 45MB over 170GB of data.
I've tried to use bscan and bls to read the tape, but only the last
overwriting job is listed.

How can I scan the whole tape and recover old, non overwritten, jobs?

Thanks for any suggestions,

Simone
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