Upgrading VMFS3 Volumes to VMFS5

vSphere 5.0 supports VMFS5 volumes, which have improved scalability and performance.
You can upgrade from VMFS3 to VMFS5 by using the
, the
vmkfstools
command, or the
esxcli storage vmfs upgrade
command. You can pass the volume label or the volume UUID to the ESXCLI command.
You cannot upgrade VMFS3 volumes to VMFS5 with the
vmkfstools
command included in vSphere CLI.