ADD SHADOW DESTINATIONVOLUME Adds a shadow copy to the recovery set. For hardware shadow copies only. This command specifies ...

ADD SHADOW  [DESTINATIONVOLUME]

        Adds a shadow copy to the recovery set.

        For hardware shadow copies only.  This command specifies that the contents of the disk containing
        the destination volume are to be resynchronized to the contents of the disk containing the
        shadow copy.  For more details see the RESYNC command.

        SHADOWID            Specifies a hardware shadow copy.
        DESTINATIONVOLUME   Specifies a volume on a disk supported by the same hardware provider
                            on the local computer. If this parameter is omitted, the original volume
                            used to create the snapshot will be used as the destination.

        Examples:  ADD SHADOW %%VSS_SHADOW_1%% P:
                   ADD SHADOW %%VSS_SHADOW_2%% Q:
                   ADD SHADOW %%VSS_SHADOW_3%%