Message-Id: <10526.108757@fatcity.com> From: Chris Royce Date: Mon, 12 Jun 2000 15:26:14 -0400 Subject: Re: Redo logs on mirrored disks --------------F8B0D6A380D326E584217A59 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I run my Production databases on RAID 0+1 with the redo logs NOT duplexed. No problems in a number of years. I have had a couple of problems, however, with duplexed redo logs. Explanations on request. Chris Royce Jamestown NC rsands@lendleaserei.com wrote: > listers, > > Reading through Steve Adams web site, I came across > the tip that says redo logs should be mirrored or > multiplexed, but there is no need to do both. The > explanation makes sense, but I have never run a > production database without multiplexing redo logs, > and the thought of doing so is a little scary!! I > wanted to find out how many other DBA's have taken > this approach, and if you've tried it, how much of > performance difference have you seen? Is there any > increased risk of data loss? > > TIA ... Robyn Sands > > -- > Author: > INET: rsands@lendleaserei.com > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). --------------F8B0D6A380D326E584217A59 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I run my Production databases on RAID 0+1 with the redo logs NOT duplexed. No problems in a number of years. I have had a couple of problems, however, with duplexed redo logs. Explanations on request.

Chris Royce
Jamestown NC

rsands@lendleaserei.com wrote:

listers,

Reading through Steve Adams web site, I came across
the tip that says redo logs should be mirrored or
multiplexed, but there is no need to do both.  The
explanation makes sense, but I have never run a
production database without multiplexing redo logs,
and the thought of doing so is a little scary!!  I
wanted to find out how many other DBA's have taken
this approach, and if you've tried it, how much of
performance difference have you seen?  Is there any
increased risk of data loss?

TIA  ...  Robyn Sands

--
Author:
  INET: rsands@lendleaserei.com

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