[Veritas-bu] NBD/SAN Transport issues

I have one particular VM that for whatever reason does not like to be backed up via SAN transport method. NBD backups work fine. The message in the detailed status for a SAN backup is:

06/11/2012 21:16:20 - Error bpbrm (pid=9560) from client XXXXXX: ERR - Error opening the snapshot disks using given transport mode: Status 23.

06/11/2012 21:16:21 - Info bpbkar32 (pid=6584) bpbkar waited 0 times for empty buffer, delayed 0 times.

06/11/2012 21:16:33 - Error bpbrm (pid=9560) could not send server status message

06/11/2012 21:16:33 - Critical bpbrm (pid=9560) unexpected termination of client XXXXXX

06/11/2012 21:16:33 - Error bpbrm (pid=9560) cannot send mail to someonewhocares AT company DOT com

06/11/2012 21:16:33 - Info bpbkar32 (pid=0) done. status: 6: the backup failed to back up the requested files

06/11/2012 21:16:33 - end writing; write time: 0:00:19

the backup failed to back up the requested files (6)

While I know that this can be caused by an improperly zoned/configured datastore at the media server, I'm able to backup other VM's via SAN that reside on the same datastore. I've attempted this backup on three different media servers to see if there was some cache file causing issues, but I get the same result. Could anything else be causing this error message?

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