Bacula-users

[Bacula-users] verify error with LTO hardware encryption

2015-10-19 18:49:04
Subject: [Bacula-users] verify error with LTO hardware encryption
From: "Mark D. Strohm" <mstrohm AT ucla DOT edu>
To: bacula-users AT lists.sourceforge DOT net
Date: Mon, 19 Oct 2015 15:47:01 -0700
Hello-

Is there a trick to using Bacula with LTO hardware encryption enabled?

With drive encryption turned on, verify jobs are hitting an I/O error reading 
the first record of a tape file.

On a test job that went to files 78, 79 and 80, the error looks like this:

19-Oct 14:03 ccnback-sd JobId 988: Ready to read from volume "CCNB12" on tape 
device "Magnum-224-LTO4" (/dev/tape/by-id/scsi-1IBM_ULTRIUM-TD4_1310025811-nst).
19-Oct 14:03 ccnback-sd JobId 988: Forward spacing Volume "CCNB12" to 
file:block 78:0.
19-Oct 14:19 ccnback-sd JobId 988: Error: block.c:429 Read error on fd=5 at 
file:blk 79:0 on device "Magnum-224-LTO4" 
(/dev/tape/by-id/scsi-1IBM_ULTRIUM-TD4_1310025811-nst). ERR=Input/output error.
19-Oct 14:19 ccnback-sd JobId 988: End of Volume at file 79 on device 
"Magnum-224-LTO4" (/dev/tape/by-id/scsi-1IBM_ULTRIUM-TD4_1310025811-nst), 
Volume “CCNB12"

dd can read the data from both files.  The boundary is on the phrase "varius 
sed feugiat”.  The end of file 78, and the start of 79 are:

    "varius sed "
    
"~\274\301\214^@^@\374^@^@^A.\300BB02^@^@^@^AV%X\226^@^@^@3\377\377\377\376^@^@\313\233feugiat”

I’m using Bacula 7.0.5 with an LTO-4 drive and stenc 1.0.7 to control 
encryption.

Any advice would be appreciated.

Thank you very much.
Mark


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