You can view and create storage groups using the App Volumes Manager.
You can define storage groups to automatically replicate AppStacks or distribute Writable Volumes across many datastores. They are also used to define a group of datastores that should all contain the same AppStacks. Some of the attributes for the group, such as template location and distribution strategy, only apply when using the group for distributing Writable Volumes. The distribution strategy setting controls how Writable Volumes are distributed across the group.