From: Mohamed Lrhazi (mohamed@your-site.com)
Date: Mon Apr 21 2003 - 12:34:09 EDT
Thanks for all who responded to me, especially Mike, mikelist@sky.net,
who pointed out that he asked the same question and posted a summary
last month. More info will be found in his summary. Sorry for missing
that and resending the question.
In short:
Q: How to set up RAID1+0 using Solaris Volume Manager
A: Just set up RAID 0+1, using same number of stripes and stripes of
same size, the software will set up RAID1+0, and won't tell you it did!
There is no way to ensure what you built was RAID1+0 and not 0+1, except
from unplugging disks. dirk.boenning@ccf.de said he tested it himself.
This behaviour is not documented anywhere, apart from the few sentences
in SVM user guide that I pasted in my original post.
alexei@soemail.rutgers.edu got me excited suggesting that A5000 have
hardware RAID cards built in.... It turns out that is not correct, A5x00
do not have hardware RAID.
One response, rich.teer@rite-group.com, claimed that what I configured
was really RAID 0+1... I am not willing to unplug my disks right now in
order to verify , I just hope he is wrong :)
Thank you all,
Mohamed~
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