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Charley, IBM RAID at least used to be striped in 16mb stripes. example: DRIVE#1 DRIVE#2 Drive#3 Drive#4 16mb Stripe# Data/Raid Data/Raid 1 D D D R 2 D D R D 3 D R D D 4 R D D D I don't know if this is true anymore or not, but this looks better for performance __________________________________________________ Kirk Goins IBM Certified iSeries Technical Solutions Expert Pacific Information Systems - An IBM Premier Business Partner 503-674-2985 kirkg@pacinfosys.com -----Original Message----- From: Charly Jones [mailto:charly301@hotmail.com] Sent: Friday, June 28, 2002 10:39 AM To: midrange-l@midrange.com Cc: lbolhuis@arbsol.com Subject: RE: disk arms (was RE: Tips for user ASP) Currently, RAID information is put on one "end" of the disk. Inner ring or outer ring, I don't know. "Real" data (mine and yours) gets put on the other. So the only thing that is between RAID bits and real bits is the empty space. The empty space is bigger on empty disks.
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