Understanding the Basic Components › Volume Pool Definitions

Volume Pool Definitions

Volume Pool Definitions make it possible to associate Virtual Volser ranges with specific pool names. The pool name can then be used to associate any of the defined ranges with specific data sets utilizing the Group and Filter Definitions.

Up to eight pools can be defined.

The Group Definitions are updated with the defined pools names. When a scratch mount is intercepted, the filter which caused the intercept assigns a group number and by association a pool name. The Volume Pool Definitions are then used to assign a scratch VOLSER from that pool to the mount.

Consider the following:

• Volume Pooling is required when using control data sets that allow more than 510,800 Virtual Volumes to be defined.
• Multiple pool definitions are not supported under JES3. Under JES3 only one volume pool can be defined.