Re: Scalable Performace - Inserts/Updates

From: Nuno Souto <nsouto_at_nsw.bigpond.net.au.nospam>
Date: Wed, 20 Dec 2000 08:56:49 GMT
Message-ID: <3a4071b0.1055563@news-server>

On Tue, 19 Dec 2000 12:53:28 -0000, "Niall Litchfield" <n-litchfield_at_audit-commission.gov.uk> wrote:

>Not redo log group , redo log member. You will want at least 3 redo log
>groups. The point about hardware mirroring over software isn't changed
>though
>

Why? Redo log groups were introduced in earlier versions of ORACLE to cater for hardware that didn't have mirroring facilities. They are simply a performance nuisance for anyone running on hardware that has in-built fail-safe facilities. Like EMC's, Sharks, etc,etc.

Why are we mirroring TWICE? To be sure, to be sure?

Cheers
Nuno Souto
nsouto_at_bigpond.net.au.nospam
http://www.users.bigpond.net.au/the_Den/index.html Received on Wed Dec 20 2000 - 02:56:49 CST