I used VVR for about 3 years, and its a good option from the perspective that it is (or at least was) the supported method as well as being version independant and really even software independant. As long as you have your alerting setup so that you'...
You should be able to verify in the /usr/openv/netbackup/db/media/errors file. It will have a line in this file if it was indeed a drive error, and it will have the media ID, drive index, then WRITE_ERROR, just as it does in the line you have above.
