Oracle9i - which RAID ??

From: Wolfgang Blümlhuber <wolfgang.bluemlhuber_at_rz.fh-regensburg.de>
Date: Thu, 27 Jun 2002 15:45:59 +0200
Message-ID: <aff4uo$dfo$1@news.uni-paderborn.de>

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 - 08:45:59 CDT