Well its general way how you upgrade a VM. Below are the steps. Please note you cannot upgrade only the rpowermt CLI as EMC does not release a standalone version of RTOOLS for Sles.  Also, your lockbox will be preserved while upgrading.  Procedure:  ·         Download the latest vApp 1.1 ISO image from EMC Support web site.   ·         Copy the ISO image into a Datastore using vSphere Client.   ·         Map the ISO to the VM’s CD ROM. Select device status as Connected.     On the VMware Studio Web interface.   ·         Use the URL https:// :5480  to access VMware studio interface. ·         Log into the interface and navigated to update tab -> setting tab ·         Under Update repository section selected “Use CDROM updates” and saved the setting. ·         Navigate -> status, ·         Click “Check Updates” ·         It gives a message update available. [If the ISO is attached of higher version] ·         Click “Install Updates” ·         Start upgrade process.   ·         Reboot the Appliance after the upgrade is complete  
What is the easiest way to update vApp to 5.9? Cli?
Update PowerPath/VE vApp 5.8 to 5.9