[Bacula-users] unable to restore anything from tape library

Guys

I am receiving the following when attempting to restore from the tapes:

24-Oct 15:41 rhino-dir JobId 577: Start Restore Job RestoreFiles.2012-10-24_15.41.24_15
24-Oct 15:41 rhino-dir JobId 577: Using Device "LT0-5"
24-Oct 15:41 rhino-sd JobId 577: Ready to read from volume "tape16" on device "LT0-5" (/dev/st0).
24-Oct 15:41 rhino-sd JobId 577: Error: block.c:291 Volume data error at 0:1! Wanted ID: "BB02", got "". Buffer discarded.

out of the suggestions found in http://www.bacula.org/en/dev-manual/main/main/Restore_Command.html
under "Problems restoring Files"

I have attempted to use:

1. Set "Block Positioning = no" in your Device resource and try the restore. This is a new directive and untested.

with the same error. I have then tried

3. Try editing the restore.bsr file at the Run xxx yes/mod/no prompt before starting the restore job and remove all the VolBlock statements. These are what causes Bacula to reposition the tape, and where problems occur if you have a fixed block size set for your drive. The VolFile commands also cause repositioning, but this will work regardless of the block size.

but I find there are no VolBlock statements in the bsr.

I actually tried bextract first:

4. Use bextract to extract the files you want - it reads the Volume sequentially if you use the include list feature, or if you use a .bsr file, but remove all the VolBlock statements after the .bsr file is created (at the Run yes/mod/no) prompt but before you start the restore.

and ran: bextract -dnn -i /etc/bacula/include-list -V tape16 /dev/st0 /data/vol16/ (with tape16 in the drive).

with the same error.

and lastly:

2. Set "Minimum Block Size = 512" and "Maximum Block Size = 512" and try the restore. If you are able to determine the block size your drive was previously using, you should try that size if 512 does not work. This is a really horrible solution, and it is not at all recommended to continue backing up your data without correcting this condition. Please see the Tape Testing chapter for more on this.

I get the following:

24-Oct 16:02 rhino-dir JobId 579: Using Device "LT0-5"
24-Oct 16:02 rhino-sd JobId 579: Error: block.c:1045 Read error on fd=5 at file:blk 0:0 on device "LT0-5" (/dev/st0). ERR=Cannot allocate memory.
24-Oct 16:02 rhino-sd JobId 579: Warning: acquire.c:280 Read acquire: Requested Volume "tape16" on "LT0-5" (/dev/st0) is not a Bacula labeled Volume, because: ERR=block.c:1045 Read error on fd=5 at file:blk 0:0 on device "LT0-5" (/dev/st0). ERR=Cannot allocate memory.
24-Oct 16:02 rhino-sd JobId 579: Error: block.c:1045 Read error on fd=5 at file:blk 0:0 on device "LT0-5" (/dev/st0). ERR=Cannot allocate memory.
24-Oct 16:02 rhino-sd JobId 579: Warning: acquire.c:280 Read acquire: Requested Volume "tape16" on "LT0-5" (/dev/st0) is not a Bacula labeled Volume, because: ERR=block.c:1045 Read error on fd=5 at file:blk 0:0 on device "LT0-5" (/dev/st0). ERR=Cannot allocate memory.
24-Oct 16:02 rhino-sd JobId 579: Please mount Volume "tape16" for:
    Job:          RestoreFiles.2012-10-24_16.02.54_19
    Storage:      "LT0-5" (/dev/st0)
    Pool:         Default
    Media type:   LT0-5

What do I have to do to get any data off these tapes?

I have attempted using dd as well, with no success. any thoughts?

bacula version 5.2.12, Debian testing.

Thanks

Jurgen

-- 
Jürgen Weber

Systems Engineer
IT Infrastructure Team Leader 

THE ICONIC | E jurgen.weber AT theiconic.com DOT au | www.theiconic.com.au

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