RE: Redo logs on mirrored disks

Robyn:

Have not yet read that tip from Steve Adams, but I value his opinions very highly.

However, Oracle seems to go with multiplexing as shown by their caveat regarding o/s or hardware corruption:

In my shop, we do both mirroring and multiplexing

Multiplexing Online Redo Log Files
Oracle provides the capability to multiplex an instance's online redo log files to safeguard against damage.
You can also mirror your redo logs at the O/S level, but in so doing you run the risk of O/S or hardware induced corruption. In most cases, multiplexing of online logs is best.

-----Original Message-----
From: rsands_at_lendleaserei.com [mailto:rsands_at_lendleaserei.com] Sent: Monday, June 12, 2000 11:52 AM
To: Multiple recipients of list ORACLE-L Subject: Redo logs on mirrored disks

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_at_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_at_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).