Disk I/O changes

Hi all! I'm in the process of putting together a proposal for improving the reliability of one of our production RS/6000 systems. This 58H is running two Oracle databases for our business systems.

Here's the plan I have for the system....Key requirements for the system are:         

• Reasonable cost
• Doesn't affect performance (within reason)
• Minimal downtime for repairs
• Have room for expansion in the future

The proposal which I am developing calls for:

• 2 IBM-7131 SCSI Multi-storage towers ( Hot swappable bays ) One tower being the primary drives and the second a mirror.
• RAID 0 on the database datafiles.
• On-line storage of the database hot-backup and archive logs.
• Off-site storage of nightly tape backups.

Does this seem like a resonable solution to anyone? RAID-5 is a bit pricey and I've heard that it isn't the best route for Oracle databases...

Thanks,
-Derek

--
Derek A. Hackbardt
System Administrator, Cargill Fertilizer Inc.
(813) 671-6291
Derek_Hackbardt_at_cargill.com