LSM RAID5 question

From: - <ldg_at_ulysium.net>
Date: Wed, 23 Feb 2005 11:09:59 -0500

I was trying to set up a raid5 set with 4 drives in LSM and it made a 3
drive set plus a concatenated 4th drive.
How is this done?
I thought we could make a raid5 set with anything from 3 drives and up.
Why is it making a 3 drive set and the 4th is just concatenated?
What would happen in case of the failure of that 4th drive?
How could the data be preserved?
There would be no parity data for that extra drive to rebuild it.
Can someone explain in details how this works?
And if there's a way to make a 4 or 5 drives set that's truly raid5, how
would it be done?

-- 
Didier Godefroy
mailto:dg_at_ulysium.net
Received on Wed Feb 23 2005 - 16:14:22 NZDT

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