A storage pool is a collection of storage volumes. A storage volume is the basic unit of storage, such as allocated space on a disk or a single tape cartridge. The server uses the storage volumes to store backed-up, archived, or space-managed files.
The server provides three types of storage pools that serve different purposes: primary storage pools, copy storage pools, and active-data pools. You can arrange primary storage pools in a storage hierarchy. The group of storage pools that you set up for the Tivoli® Storage Manager server to use is called server storage.