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So maybe I should try just adding the fourth drive to the array and see if
that works first? Is there a way to check and see if the parity is setup
correctly after I add that drive to the array?

Should IBM have done this by default?

And yes, Bruce, we just got done with our first round of trick-or-treating.

Aaron Bartell
http://mowyourlawn.com


On Sat, Oct 31, 2009 at 11:17 AM, Lukas Beeler <
lukas.beeler@xxxxxxxxxxxxxxxx> wrote:

On Sat, Oct 31, 2009 at 15:48, Trevor Perry <trevor@xxxxxxxxxx> wrote:
Why would you not just add the disk to the RAID set and let it balance?
It
is, after all, a fresh server with not a lot of DASD used yet.

I suggested that possibility - point is, that 3-Disk RAID sets are a
special case, they performed very badly on Power 5 520's. Now, the
controller hardware and all has changed a lot, and just adding the
disk might very well work just as it should. I know this was a bad
idea on the older systems.

But especially because there's not much data on it yet, doing the
whole rebuild array shtick should be fairly easy to do.



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