Storage pool volumes are TSM storage objects that represent units of storage media within a storage pool. Figure 124 shows storage pool volumes grouped into a storage pool. Each storage pool represents only one type of media. For example, a storage pool for 8mm devices represents collections of only 8mm tapes.
Figure 124. Relationships of Storage Pool Volumes, Storage Pools, and Media
For device classes such as DISK, administrators must define volumes. For other device classes, such as tape, administrators can allow the TSM server to dynamically acquire scratch volumes and define those volumes as needed. For details, see Overview of Volumes, Preparing Volumes for Random Access Storage Pools, and Preparing Volumes for Sequential Access Storage Pools.