# scan for new disks
vxdisk scandisks

# list all disks in all diskgroups
vxdisk -e -o alldgs list

# initialize new disk
vxdisksetup -i tagmastore-usp0_1689  (or vxdisk -f init tagmastore-usp0_1689)

# add new disk to necessary (which mirroring will be done) disk group
vxdg -g alddg01 adddisk disk02=tagmastore-usp0_1689

# display all disk config
vxprint -hvtA

# create subdisk with exact sector size of the source mirroring disk(disk01) in disk config
vxmake -g alddg01 sd disk02-01 disk02,0,251576320

# create plex associated with the subdisk
vxmake -g alddg01 plex aldvol01-02 sd=disk02-01

# attach the plex to the volume, mirroring will occur at plex level.
time vxplex -g alddg01 att aldvol01 aldvol01-02 

  # you can watch mirroring state with "vxtask -l list" command

# detach old plex from volume
vxplex -g alddg01 det aldvol01-01

# disable plex and remove plex with its related objects ( subdisk and subvolume)
vxplex -g alddg01 -o rm dis aldvol01-01
---------OR YOU CAN USE BELOW 2 COMMANDS INSTEAD OF ABOVE 1 COMMAND ----------
# disable plex
vxplex -g alddg01 dis aldvol01-01

 # JUST ADDITIONAL INFO => we can create separate volume from old plex and mount as below if we want.
 vxmake -g alddg01 -U gen vol aldvol02 plex=aldvol01-01
 vxvol -g alddg01 start aldvol02
 mount -F vxfs /dev/vx/dsk/alddg01/aldvol02 /aldt1_old_disk

# remove plex, recursive "-r" option also removes related objects (subdisk and subvolume)
vxedit -g alddg01 -r rm aldvol01-01
-----------------------------------------------

# remove disk from diskgroup
vxedit -g alddg01 rm disk01


 # We could also use EVACUATE with vxevac ( EVACUATE= SYNC NEW + REMOVE OLD )
 vxevac -g alddg01 disk01 disk02


# Exclude disk temporarily from DMP Multipath management so that you can be able to remove it at next step 
 vxdmpadm exclude dmpnodename=emc-vplex0_9ee7

# remove disk
 vxdisk rm emc-vplex0_9ee7 

-------------------------------
# now we can remove disk from OVM-Sparc Hypervisor

ldm remove-vdisk mp-server1-test-zfs-swap server1
ldm remove-vdsdev server1-test-zfs-swap@pri-test-zfs-vds0
ldm remove-vdsdev server1-test-zfs-swap@sec-test-zfs-vds0
-------------------------------

# now run below command at guest LDOM to clear old device
devfsadm -Cv

# run below command at guest LDOM to remove all DMP Multipath temporary exclusions
vxdmpadm include all