Description | string | A DiskGroup is a named collection of DiskDrives and the StorageExtent(s) accessed via those Drives. The collection is used to limit the BasedOn relationships of the Extents in the DiskGroup. Extents in the Group can NOT be BasedOn storage accessed from Drives outside of the Group. For example, a SoftwareVolume created 'within the DiskGroup' is restricted to be completely accessed using Drives in the Group. Actions such as 'replicate' or 'migrate' on an Extent must operate within the scope of the Extents present in the DiskGroup. | None | TRANSLATABLE= true |