PERC 4e/Di unmirror system disk

Patrick_Boyd at Patrick_Boyd at
Mon Oct 16 10:53:00 CDT 2006

The unmirror command is Adaptec only. The PERC 4e's are LSI cards. So
sorry you won't be able to unmirror the drive.

Patrick Boyd
Dell Storage Software Engineer

-----Original Message-----
From: linux-poweredge-bounces at
[mailto:linux-poweredge-bounces at] On Behalf Of Peter Walker
Sent: Monday, October 16, 2006 10:23 AM
To: linux-poweredge-Lists
Subject: PERC 4e/Di unmirror system disk

I have a PowerEdge 2850 with a mirrored system disk. One of the disks is
reporting predictive failure and I would like to switch back to a single
unmirrored disk. 
I am using OMSA 4.5 and I have found the omconfig  unmirror command but
the documentation is a bit sparse. 
How do I ensure that the unmirror results in the good disk being
retained? I also saw in the GUI reference that it won't split a mirror
on a mounted disk. Any suggestions?
Plan B is just to pull the bad disk and hope for the best.



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