Veritas-bu

Re: [Veritas-bu] LTO tapes handling more that it supposed

2008-02-25 16:21:02
Subject: Re: [Veritas-bu] LTO tapes handling more that it supposed
From: A Darren Dunham <ddunham AT taos DOT com>
To: Veritas-bu AT mailman.eng.auburn DOT edu
Date: Mon, 25 Feb 2008 21:00:58 +0000
On Mon, Feb 25, 2008 at 02:28:33PM -0600, Chacko, Savil wrote:
> When we were running LTO3, we also were consistently able to fill up
> tapes for a certain data set to about 1.2 TB.  We had multiple
> restores of all 1.2 TBs and validated the data.  The data was actually
> cold backups of Oracle databases, which surprised us since we had the
> same idea that if they were ASCII text files, then yea, I could see
> that, but databases?

Very common in my experience.  Databases are usually layed out for speed
of access and updates, not for compactness of data.  Often tablespaces
are pre-allocated which can provide more blank space to chew on.

-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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