RAID 5 impact on "sys" Utilization

From: VIVEK_SHARMA <VIVEK_SHARMA_at_infosys.com>
Date: Mon, 17 Feb 2003 21:03:45 -0800
Message-ID: <F001.0054FD05.20030217210345@fatcity.com>

Will "sys" Component of CPU Utilization be Higher on a RAID 5 Volume Versus a RAID 1+0/0+1 Volume on a Database Server ?

Under peak Hybrid Loads the CPU Utilization's "sys" component is 50 % & "usr" component is 50 % .

Our Hybrid Application DATABASE is setup on a Hitachi Storage Box configured such that a SINGLE RAID 5 Volume spans across ALL the underlying Disks of the Storage Box .

Qs. Couls RAID 5 be the Cause of High "sys" ?

NOTE Application Software sits on a Different APP Server machine .

Banking Application Database
Oracle 8.1.7
Solaris 8
VXFS SF15K DB Server - 40 CPUs
Hitachi Storage Box from HP
Concurrent Oracle sessions = 5000

Will provide any info needed

Thanks

--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: VIVEK_SHARMA
  INET: VIVEK_SHARMA_at_infosys.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------

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). Received on Mon Feb 17 2003 - 23:03:45 CST