1. mkszfile
2. Edit /image.data and add in multiple copies -in the lv_data section change COPIES = 2 or each lv (might be some other fields to change – compare a mirrored to a non-mirrored lv to check).
##Command used for lv_data; /usr/sbin/lslv lv_data: VOLUME_GROUP= rootvg LV_SOURCE_DISK_LIST= hdisk0 LV_IDENTIFIER= 00075ef10000d60000000119e75995ad.1 LOGICAL_VOLUME= hd5 VG_STAT= active/complete TYPE= boot MAX_LPS= 512 COPIES= 1 LPs= 1 STALE_PPs= 0 INTER_POLICY= minimum INTRA_POLICY= edge
lv_data: VOLUME_GROUP= rootvg LV_SOURCE_DISK_LIST= hdisk0 hdisk1 LV_IDENTIFIER= 0005e4d40000d70000000133abd69497.2 LOGICAL_VOLUME= hd6 VG_STAT= active/complete TYPE= paging MAX_LPS= 512 COPIES= 2 LPs= 64 STALE_PPs= 0
3. Take the mksysb but DO NOT use the -i option (since this will
create a new image.data file which overwrites your old one).
4. Restore the mksysb.
Note: please do it on your own risk……