reassigning md devices

From: chris berg (cberg2_at_spaceball1.wharton.upenn.edu)
Date: 09/29/04 

Date: Tue, 28 Sep 2004 23:47:24 +0000 (UTC)

Hello.
if I have two software raid1 partitions, for example, md1 made from sda1
and sdb1 and md2 made from sda2 and sdb2, how would i go about changing
the assignment so that md2 is actually comprised of sda1 and sdb1 and
md1 comprised of sda2 and sda2? I want to keep the data.

switching all references in the filesystem (raidtab, fstab, grub.conf)
did not yield the results I am looking for, which leads me to believe
that this information is written directly onto the disks somewhere.

is there any way to accomplish this?
thank you.

# cat /proc/version
Linux version 2.4.21-4.ELsmp (bhcompile@daffy.perf.redhat.com) (gcc
version 3.2.3 20030502 (Red Hat Linux 3.2.3-20)) #1 SMP Fri Oct 3
17:52:56 EDT 2003

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