Root Mirror Testing in Veritas Volume manager

# verify what disk you are booted off of

prtconf -vp|grep bootpath

#####
#verify if bootpath and either rootdisk and rootmirror are the same
#####

prtconf -vp|grep rootdisk
prtconf -vp|grep rootmirror

# Break the mirror(ie the disk that does NOT match the bootpath disk)
# so the new environment can be created.
# Verify that the 0# plexes are really the non-bootpath plexes
# Make sure you remove the plexes that are associated to the non-bootpath plexes
# Replace ## with the number associated to the non-bootpath plex
# Example:
# v rootvol
# pl rootvol-01 (Remove pl associated with "sd" rootmirror)
# sd rootmirror-02 (In this example you would remove plex "rootvol-01")

vxprint -htg rootdg

# Disassociate the plex from the volumes rootvol,swapvol and var

vxplex -g rootdg dis rootvol-##
vxplex -g rootdg dis swapvol-##
vxplex -g rootdg dis var-##

# remove the plexes rootvol-##,swapvol-##,var-##

vxedit -rf rm rootvol-##
vxedit -rf rm swapvol-##
vxedit -rf rm var-##

# Double check and make sure the plexes were removed.

vxprint -htg rootdg

# Now remove the rootmirror/non-bootpath from the disk goup and unset it up.
# Replace c#t#d# with the rootmirror/non-bootpath disk number

vxdg rmdisk rootmirror
vxdiskunsetup -C c#t#d#

############################
###Disable Veritas on the rootmirror disk
############################

Mount the disk (rootmirror in this case)

mount /dev/dsk/c#t#d#s# /mnt

touch /mnt/etc/vx/reconfig.d/state.d/install-db

rm /mnt/etc/vx/reconfig.d/state.d/root-done

make appropriate changes to the /etc/vfstab file( there should not be anything like /dev/vx)

# Double-check the /mnt/etc/system and comment out the rootdev entries
# if they are there

vi /mnt/etc/system

# Only comment out the following entries

rootdev:/pseudo/vxio@0:0
set vxio:vol_rootdev_is_volume=1

umount /mnt

reboot --- -s

and proceed with patching, if something goes wrong and you need to backout you can boot off the rootmirror and run vxinstall to enable veritas again and then encapsulate..