Veritas-bu

Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU

2008-04-01 11:47:34
Subject: Re: [Veritas-bu] Top 20 (or so) misunderstood things about NBU
From: "Ed Wilts" <ewilts AT ewilts DOT org>
To: "Curtis Preston" <cpreston AT glasshouse DOT com>
Date: Tue, 1 Apr 2008 10:11:07 -0500
On Mon, Mar 31, 2008 at 4:48 PM, Curtis Preston <cpreston AT glasshouse DOT com> wrote:
What are the top 5/20/30 things about NBU that you think people get wrong?

1.  People think that you're working on a backup system.   You're not - you're working on a *recovery* system.  If you can't recover, backups are useless.

2.  File system backups are not a replacement for bare metal restore.  It is usually not acceptable to just do a fresh install, restore files, and expect to be back to where they're started

3.  Error messages really are important.  Check them every day or you'll eventually discover that failures were missed in the noise and backups haven't run in a long time.  When you do a restore is not the time to check to see if backups actually ran.

4.  Audits are important.  The larger the environment, the more likely it is that file systems are missed.  This is especially true of clusters.  Sometimes it's not the failures that get you but the lack of attempts.

5.  Backing up clusters by physical host names will cause you grief.

6.  Application owners are responsible for ensuring the application is recoverable.  A backup admin, working in a vacuum, can not help you.

7.  Test your restores regularly.

There are lots more but this is a start...

--
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org
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