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Date: Sat, 22 Feb 2014 10:37:17 +0000
From: James Hawtin <oolon@ankh.org>
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Subject: Re: [linux-lvm] LV mirror extents on same physical device
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To: LVM general discussion and development <linux-lvm@redhat.com>

Ok I am not really sure what you are trying to do with madm, from what I 
can see you want to move data from pv on md1 to a pv on md2, this is 
really easy to do.

#pvcreate /dev/md2
#vgextend VolGroup00 /dev/md2
# Stop the old pv getting lvs created on it
pvchange -x n /dev/md1
# Whole thing in one go
pvmove -v /dev/md1 /dev/md2
# One at a time
pvmove -v -n rootlv /dev/md1 /dev/md2
vgreduce VolGroup00 /dev/md2

Your done.

James