What is a free pool?
A free pool is an auxiliary source of media of the same type (for example, DLT) for use when all free media in a regular pool run out. It helps to avoid failed backups due to missing (free) media.
Figure 36 Free pools
When is a free pool used?
Media are moved between regular and free pools on two events (Figure
•Allocation. Media are moved from a free pool to a regular pool
•Deallocation. Media are moved from a regular pool to a free pool. You can specify in the GUI whether deallocation is done automatically. Media from the PC backup pool in Figure 36 on page 138, for example, are not automatically deallocated.
Protected (allocated, used) media belong to a specific regular pool (like the SAP pool), while free Data Protector media can be (automatically) moved to a free pool. This free pool is later used for allocation of free media for all pools that are configured to use this free pool.
Some regular pools, for example the Private pool in Figure 36 on page 138, can also be configured not to share any media with free pools.
Free pool benefits
A free pool has the following benefits:
•Sharing of free media between pools
138 | Media management and devices |