Raid? Depends on the raid-type you have. RAID-F hurts. Baarf! Read www.baarf.com. Other interesting reading in http://www.scaleabilities.co.uk/papers/scalingOracle8i.pdf, chapter 2. Best regards, Carel-Jan Engel === If you think education is expensive, try ignorance. (Derek Bok) === Upcoming appearances: * Feb 9-10, 2005: Denver, RMOUG Training Days: Data Guard Performance Issues * Mar 6-10, 2005: Dallas, Hotsos Symposium: Data Guard Performance Issues On Tue, 2005-02-01 at 06:46, Burton, Laura wrote: > We have a new server which has two raid arrays and controllers. The > disks on each controller look as if it is one. I read the info about > having the system datafile on a different drive that the logs, data > different from indexes. I have also read about having too many logical > drives will hurt the response time. So in my scenario do I just have > maybe 2 logical drives per unit? One per unit? Or does logical really > hurt? -- //www.freelists.org/webpage/oracle-l