SUMMARY Disksuite Raid 1+0

From: David Lowenstein <dlowenst_at_mail.sdsu.edu>
Date: Mon Jun 03 2002 - 09:59:52 EDT
Thanks for all the help everyone. When disksuite is set up in what appears
to be raid 0+1 (mirrored stripes) it actually acts like raid 1+0. For
example if you were to set up:

metainit -f d11 1 3 c1t0d0s3 c1t1d0s3 c1t2d0s3
metainit -f d12 1 3 c1t3d0s3 c1t4d0s3 c1t5d0s3
newfs /dev/md/rdsk/d11
metainit d10 -m d11
metattach d10 d12

You will have 2 3 disk stripes which are mirrored. You could lose 3 disks
and still be up because it is really raid 1+0. As long as you don't lose
any of the pairs of disks (like c1t0d0s3 and c1t3d0s3) you're fine.

Dave Lowenstein
Programmer/Analyst
Instructional Technology Services
San Diego State University
(619)594-0270
http://www-rohan.sdsu.edu/dept/its
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Received on Mon Jun 3 10:05:11 2002

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