--- Jared Still <jkstill@xxxxxxxxxx> wrote: > Jeez Paul, it was just an example. :) > > Jared but when I hear "5 disks", it makes me think of ... dirty things. I never did try a block size of 6*1024 bytes. it would be interesting for a 6 disk, RAID 10 vol. I would think that non-power of 2 block sizes would subject the actor with ORA-600s beyond their wildest dreams. btw - I have not experienced the degredation reported by Jonathan Lewis (~12) regarding not getting 16 blocks per read for full table scans (or 32 when using a dbfmbrc of 32). But I only use powers of 2 for RAID stripes. Pd > > On Fri, 2004-04-23 at 18:15, Paul Drake wrote: > > OOH - odd number of disks for RAID 0 >> BRAIN > HURTS. > > > > These days, I can only do math in my head in > powers of > > 2. > > > > 2 advil plus a dose of the paper at hotsos on > > "Aligning Oracle Blocks with Hardware Stripe > > Boundaries". > > > > RAID 1 ( 2 ) > > RAID 10 ( 4, 8) > > RAID 0 ( 1, 2, 4, 8 ) > > > > Far better to use that odd number for a hotspare > > (although a hot spare for RAID 0 is not really > > worthwhile). > > > > RAID F ... sorry, can't do it. > > > > Pd __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------