Re: Redo group members needed with hardware mirror???

From: <rspeaker_at_my-deja.com>
Date: Wed, 05 Jan 2000 12:45:00 GMT
Message-ID: <84vec9$or6$1@nnrp1.deja.com>

Typically you would use one or the other, but not both. You may, in fact, experience a performance degradation if you use both hardware mirroring and log multiplexing, depending on your configuration. I normally use hardware mirroring if the OS provides it; if not, then I use log multiplexing.

HTH,
Roy

In article <84u3sc$e3m$1_at_garnet.tc.umn.edu>, hause011_at_garnet.tc.umn.edu (Steven Hauser) wrote:
> What reason would you multiplex the redo log if you had
> hardware mirrors of the disks?
>
> The only reason given in the manuals is if a redo file is
> lost due to disk failure.
>
> Hardware mirrors seem more reliable than additional Oracle
> mirroring 'multiplexing' and maybe faster without
> oracle mirroring.
>
> --
> ---------------------------------------------------------
> Steven Hauser
> email: hause011@tc.umn.edu URL: http://www.tc.umn.edu/~hause011
> ---------------------------------------------------------
>

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Before you buy. Received on Wed Jan 05 2000 - 06:45:00 CST