Re: [Veritas-bu] Netbackup verify at write time
2008-07-24 01:38:20
Tape drives implement ECC much like memory. If you trust your memory you should
trust your tape drive assuming you don't throw them around.
http://findarticles.com/p/articles/mi_qa3751/is_200307/ai_n9275590/pg_8
Regards
Peter Marelas
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Dave
Markham
Sent: Wednesday, 23 July 2008 8:45 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup verify at write time
Guys management here are fussing around how are we sure backups are successful
or they can be restored from without doing an actual restore.
I was under the impressions that some sort of verify or sum check operation was
done at write time and that if a status 0 was returned it was a pretty good
indication backups would be able to be restored.
Taking all physical factors aside ( e.g tapes being bashed around making them
unusable ) the other way to verify is using bpverify but i'm just wondering if
its needed.
Anyone shed any light on this for me?
I know the only sure fire way of knowing a backup is fine is performing a
restore, but unless a full restore is done (which has its own problems of space
etc) then what other assurances are there?
Netbackup 5.0MP7, 6.0MP4 on a mixture of Solaris 9 and 10
Cheers
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