Re: Raid performace issues (Raid 5 vs. Raid 0+1) with database files

From: <dougcoan_at_my-deja.com>
Date: Thu, 02 Sep 1999 13:43:53 GMT
Message-ID: <7qluul$foc$1@nnrp1.deja.com>

In article <7qkeig$eaq$1_at_nnrp1.deja.com>, bchorng_at_my-deja.com wrote:
> I have only one comment regarding Doug's statement below on
> mirroring and multiplexing redos.
>
> Mirroring redo and multiplexing redo log members are 2 different
> things. We had a real life experience that a DBA mistakenly
> removed all redo logs while system is running.
> In this case mirror would not help a bit.
>
> But another member would have saved our butts - sort like
> you have multiple controlfiles.
>
> Mirror also mirrors human mistakes, but multi-members won't.

Excellent point! That is the only area where we thought the mirror would not help. I have heard of one other place that did this (erased the redos). Hopefully all turned out ok for you.

Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't. Received on Thu Sep 02 1999 - 08:43:53 CDT