To ensure that alternate disk installation has completed successfully, verify that all the nodes have booted from the alternate boot environment and joined the cluster.
To verify the upgrade
# lspv | grep rootvg hdisk0 0009710fa9c79877 old_rootvg hdisk1 0009710f0b90db93 rootvg active
6.0.0.0
.# lslpp -l | grep -i vrts
If you upgraded the operating system:
# oslevel -s