We are currently running vCenter 4.1 and preparing to upgrade to vCenter 5.1. We have a version 1.2 VDR appliance with a backup store (RDM). I'm looking through the instructions specified here for upgrading (to version 2.0.1)
http://www.vmware.com/support/vdr/doc/vdr_200_releasenotes.html
The first steps mentioned is for installing the latest Data Recover plug-in. Further down on this page, another step is to unmount the datastore on the old VDR appliance. Can the 1.2 VDR appliance be accessed with the new 2.0.1 VDR plug-in under vCenter 5.1? Or will we need to unmount the 1.2 VDR backup store prior to upgrading vCenter to version 5.1 and the VDR plugin to 2.0.1? From what I've ready it does not seem that the version 1.2 VDR appliance will be compatible with vCenter 5.1.
Thanks