Hi!
I've just moved my AIT tape drive to a new machine. I've been running
bacula for a few weeks on the new machine with no problems at all.
Today I needed to get some files from an older tape and thought I would
read all data from the tape into the new database first.

However, when running "/usr/lib/bacula/bscan.mysql -V tapename -c
/etc/bacula/bacula-sd.conf -P password -s -m /dev/nst0" i get the
following error:

28-Nov 14:42 bscan: bscan Error: block.c:264 Volume data error at 0:1!
Wanted ID: "BB02", got "". Buffer discarded.

...and then bscan exits.

I tried to clean the tapedrive with no improvement in the result.
I've been trying with 7 different volumes, the newest just over a month
old and the oldest about 2 years old. The two oldest ones couldn't be
read at all, but on the newer bscan finds the label and then exits.

I've been restoring from tape on this machine as late as yesterday. The
difference is that that tape was also written with the newer version of
bacula.

All the old tapes are written using bacula 1.34.2 (or perhaps an even
older version) and I'm now using 1.36.2 (shipped with Debian).
Is there a difference in the format on the tapes? Could all my tapes
have been demagnetized or broken?
For how long should an average AIT-tape be able to hold the data (we
store our tapes with the local bank, in room temperature)?
Has anyone seen this problem before?

Best regards, Jonas Mixter


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