An administrator has mapped a Volume Group named VGI to a VM, Due to changes...

To add additional volumes to a VM that is mapped to a VG, you need to add more vDisks to that VG1. vDisks are virtual disks that reside on Storage Containers2.

To maintain data protection for a VM that is assigned to a Protection Domain (PD), you need to add any new vDisks to the same Consistency Group (CG) as the existing ones3. A CG is a subset of entities in a PD that are snapshotted in a crash-consistent manner2.