Home > Storage > PowerMax and VMAX > Storage Admin > Cloud Mobility for Dell PowerMax > Assigning storage groups to policies
You can assign up to four policies to each Storage Group (SG). There is no limit to the number of SGs that can be assigned to a single policy.
The child SGs inherit the policies assigned to a parent SG. When a policy is assigned to a parent SG, the policy takes a snapshot at the parent-SG level and the snapshot is consistent across all child SGs. Conversely, if the policy is individually assigned to each child SG, the child SGs are snapped separately, and the snapshots are not consistent across all child SGs.
SGs that contain common volumes should not be assigned to the same policy because only one SG will be snapped.
To add a Storage Group to a cloud snapshot policy: