Package version:
Space occupied by duplicated data, meaning data shared with other volumes and snapshots as a result of data deduplication, in bytes
Space occupied by data unique to one or more snapshots, in bytes
Total space occupied by customer data (i.e., being billed for), in bytes
Unique space occupied by customer data, in bytes; for a volume, this is the amount of storage that would be freed by deleting the volume, since snapshot and shared data would be kept
Storage space usage