Re: Oracle9i - which RAID ??

From: Per-Arne Hellarvik <phellarv_at_genuity.no>
Date: Thu, 27 Jun 2002 16:49:44 +0200
Message-ID: <aff8n6$g89$3@news1.c.no1.asap-asp.net>

I have always used 0+1, and never had any failures which was fatal. I believe RAID 5 is a lot of humbug....Use 0+1 and live happily ever after...

PS. I use 0+1 on all from 1 Gb to 400+ Gb databases.

On Thu, 27 Jun 2002 15:45:59 +0200, Wolfgang Blümlhuber wrote:

> Hi,
>
> I'm using Oracle 8.05 on WinNT4.0 WS on DELL Workstation (300 MHz, 768
> MB RAM
> 3 SCSI Harddisks - no stripeset, no mirror, no RAID)
>
> Now I want to migrate to Oracle 9i on Win2k-Server on a DELL
> PowerEdge6400 Machine
> Perc3-RAID5 System with HotSpare (5+1) and 128 MB RAID-Cache.
>
> Oracle recommends to avoid RAID5 for DatabaseFiles and RedoLogFiles. On
> our Database we mostly have long read and write transactions (approx.
> 1/2 hour)
>
> What "RAID"-system can you recommend ? Do I have lost in performance if
> I will use RAID 5 ? Or is the gain of performance marginal if using RAID
> 0+1 (stripping + shadowing) which is recommended by Oracle ??
>
> My intention is to use RAID 5 because of protection against failures.
>
> Does anyone have experiances ???
>
> Thanks in advance.
>
> Wolfgang.
Received on Thu Jun 27 2002 - 09:49:44 CDT