Logical storage pools and storage volumes are the principal
components in the Tivoli® Storage
Manager model
of data storage. By manipulating the properties of these objects,
you can optimize the usage of storage devices.
Storage pools
The server provides three types of storage pools that serve
different purposes: primary storage pools, copy storage pools, and
active-data pools.
Storage pool hierarchies
You can arrange storage pools in a storage hierarchy, which
consists of at least one primary storage pool to which a client node
backs up, archives, or migrates data. Typically, data is stored initially
in a disk storage pool for fast client restores, and then moved to
a tape-based storage pool, which is slower to access but that has
greater capacity. The location of all data objects is automatically
tracked within the server database.
Tivoli Storage Manager volumes
A volume is the basic unit of storage for Tivoli Storage
Manager storage
pools. Tivoli Storage
Manager volumes
are classified according to status: private, scratch, and scratch
write-once, read-many (WORM).