Restoring a mksysb of a mirrored rootvg to a non-mirrored rootvg

If you’ve created a mksysb of a mirrored rootvg and you wish to restore it to a system with only 1 disk in the rootvg, you can go about it as follows:
(From: http://aixhealthcheck.com/blog.php?id=164 )

Create a new /image.data file, run:

* mkszfile -m
Change the image.data file:
* vi /image.data
In each lv_data stanza of this file, change the values of the COPIES= line by one-half 
(i.e. copies = 2, change to copies = 1). 
Also change the PPs to match the LPs as well.

Create a new mksysb, utilizing the /image.data file:

mksysb /dev/rmt0

(Do not use smit and do not run with the -i flag, both will generate a new image.data file).

Use this mksysb to restore your system on another box without mirroring.