Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.server -> Re: Re: RAID 5 vs RAID 0

Re: Re: RAID 5 vs RAID 0

From: André Araújo <asaraujo_at_lucent.com>
Date: Wed, 3 Jan 2001 11:26:33 -0200
Message-ID: <92v9ae$egb@nntpa.cb.lucent.com>

The key point here is Performance.

RAID 5 has a poor performance on writing, mainly sequential writing. So, you should avoid putting some Oracle structures into the RAID 5. Structures that have a heavy sequential writing pattern like redo logs and temporary tablespace shouldn´t be put into the RAID 5.

The best option, regarding security and performance, is RAID 0+1.

Hope this helps,

André Araújo

"Kelly-Anne Frendo" <kfrendo_at_bvb.gi> wrote in message news:A3C801763DAFD411A57900508B9AAF972922_at_HEARTOFGOLD...
> From Sybrand Bakker's mail,
> "Main conclusion : don't put redolog files on RAID 5"
>
> However, I do not understand why not.
> Can anyone explain this to me?
> Thanks
> K.
>
> --
> Posted from stan.gibnet.gi [195.166.192.3]
> via Mailgate.ORG Server - http://www.Mailgate.ORG
Received on Wed Jan 03 2001 - 07:26:33 CST

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US