Re: Configuring for Online Redo Logfiles

Hi Vivek,

>From performance point of view a single disk will be a little faster as
there is a small overhead associated with the process of mirroring to the second member of the RAID1.

Regards,
Ed

> EXCERPT from "Implementing Raid On Oracle Systems" by Gaja Krishna
> Vaidyanatha, Quest Software Inc. :-
> "RAID 1 - Ideal for online and archived redo logs, Leaves the write-head
> at the location of the last write. On most systems, you will need 3
> volumes for the online redo logs (for 3 groups) and 1 volume for the
> archived redo logs. If your database is in NOARCHIVELOG mode, you
> probably can get away with a single RAID 1 volume for your redo-logs.
> However, for databases in ARCHIVELOG mode you will need to further
> separate you"
> Qs. Puttting an Online Redo log on a RAID1 Volume ( Volume Containing 1
> Disk Mirrored to Another Disk ) versus putting the Same Online redo file
> on a Single Disk (NON-Mirrored) , which would give Better performance ,
> Why ?
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: VIVEK_SHARMA
> INET: VIVEK_SHARMA_at_infy.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).
>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Edward Shevtsov
  INET: ed_at_mb.ru

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).