Hi all I remember when ASM just made it's appearance there was a paper available that explained how ASM distributes blocks when configured in normal or high, thinks like primary block owner and 8 potential partners for each asm disk. Any chance anyone has this lying around, or have an updated version taking Exadata Storage servers into consideration. My curious side at work. Yours Sincerely ________________________________________ George Leonard Oracle Engineered System Specialist Mobile: +27.82 655 2466 eMail: george.leonard@xxxxxxxxx<mailto:george.leonard@xxxxxxxxxx> Web: http://www.bcx.com<mailto:george.leonard@xxxxxxxxxx> [cid:6EA60917-E50D-422D-BF1F-E8C59EADC861]