I've added a fair bit of information on the Opteron HOWTO Wiki at: http://hashmysql.org/index.php?title=Opteron_HOWTO for using Fedora Core 3 with X86-64.
In my performance testing, I was finding that with so much RAM, everything was coming from RAM anyway. RAID10 seemed to be most stable, and writeback caching increased the speed by about 15% although I don't think I was really able to max out the IO anyway. Best regards, Richard Dale. Norgate Investor Services - Premium quality Stock, Futures and Foreign Exchange Data for markets in Australia, Asia, Canada, Europe, UK & USA - www.premiumdata.net -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]