Reverse Protection For a Moved VPG
When moving the virtual machines in a VPG you specify whether you want reverse protection from the recovery site back to the original protected site.
Reverse Protection Specified
When you specify reverse protection, the virtual machines are moved to the recovery site and then protected using the values specified during the move. Data is promoted from the journal to the moved virtual machines and then synchronization with the original site is performed so that the VPG is fully protected. The synchronization performed uses the original protected disks and is either a Delta Sync or, if there is only one volume to synchronize, a Volume Delta Sync. A sync is required since the recovered machines can be updated while data is being promoted.
Reverse Protection Not Specified
If you do not specify reverse protection, the protected disks are removed along with the protected virtual machines at the end of the procedure. In this case, if you want to move the virtual machines back again to the original site, you will not be able to use the original disks and an initial synchronization will have to be performed. The VPG definition is kept with the status Needs Configuration and the reverse settings in the VPG definition are not set.
Clicking EDIT VPG displays the Edit VPG wizard with the settings filled in, using the original settings for the virtual machines in the VPG from the original protected site, except for the volumes, since the last step of the Move operation is to delete the virtual machines from the original protected site inventory, including the disks. To start replicating the virtual machines in the VPG, specify the disks to use for replication and optionally, make any other changes to the original settings and click DONE. An initial synchronization is performed.
Notes:
■ If Keep Source VMs is not selected, and virtual machines or vCD vApp are already protected in several VPGs, the virtual machines or vCD vApp are deleted from the protected site. This will result in the removal of these virtual machines from other VPGs that are protecting them and to the journals of these VPGs to be reset. In the event of vCD vApp or if no other virtual machines are left to protect, the entire VPG will be removed.
Protecting virtual machines or vCD vApps in several VPGs is enabled only if both the protected site and the recovery site, as well as the VRAs installed on these sites, are of version 5.0 and higher.
■ You can edit the VPG definition from either of the sites, the site where the VPG virtual machines were initially protected or the site they were moved to.
■ When reverse protection is specified for a VPG residing on a vCD site that is replicating to either a vSphere or Hyper-V site, the boot order settings will not reserve the start delay vCD vApp settings for virtual machines with the same order number.
