Veritas-bu

[Veritas-bu] Block Level Incremental Backups (BLIBs)

2003-03-28 11:45:19
Subject: [Veritas-bu] Block Level Incremental Backups (BLIBs)
From: dave.yingling AT eds DOT com (Yingling, Dave)
Date: Fri, 28 Mar 2003 10:45:19 -0600
I posted this Tuesday with no response.

Is anyone using VERITAS Block Level Incremental Backups (BLIBs)?  If so, I
would appreciate hearing from you.  More details below.

dave.

-----Original Message-----
From: Yingling, Dave 
Sent: Tuesday, March 25, 2003 4:55 PM
To: Veritas-bu (E-mail)
Subject: [Veritas-bu] BLIB failures


Does anyone out there have experience with the Database Edition for Oracle
and Block Level Incremental Backups?
BTW, I'm running NetBackup 34_3 and dbed 3.0.

When a "standard" backup stream encounters a tape write failure, it has the
ability to retry (and usually succeed).

When a BLIB backup stream encounters a tape write failure it renders the
entire backup a failure even though the other n streams are all completing
successfully.  The only recourse is to clean up the mess and restart the
entire backup.  This is very frustrating when you're several hours into a
large database backup.

I'd be interested in hearing from folks that are using BLIBs and what
results they're getting.  Is there a later version of NetBackup/dbed that is
tolerant of tape write errors?

I'd also like to know what is a "normal" number of tape write failures on an
L700.  Is this a frequent occurrence?

dave.

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