This section serves as an index to the user-defined pool sections, which are used for defining volume pools and VOLSER ranges for use by CA Vtape. Up to eight volume pools can be defined. POOL1 through POOL7 are user-defined pools used to assign VOLSER ranges. POOL8 is a dynamic pool designed for internal use by the CA Vtape Peer-To-Peer Option.
Consider the following:
When a scratch mount occurs, filters defined in the VTFILTR member assign a group number to the mount. The Group Section assigns a pool name defined in the VTPOOLS member. The Pool Section contains a VOLSER range from which a VOLSER is chosen to satisfy the scratch mount.
The volume pool definitions can be dynamically reloaded by using the SVTn REFRESH=POOLS console command.
When this command is issued, CA Vtape will dynamically add and delete ranges as appropriate using the latest attributes defined within the VTPOOLS member. The volume pool definitions are global in scope, therefore all CA Vtape subsystems sharing the control files are modified when this command is issued.
The attributes associate a user-defined pool section with a specific pool.
This section contains attributes which define volser ranges associated with a given virtual volser pool.
Valid Values: A valid user-defined section within the VTPOOLS members which contains attributes for describing volser ranges associated with the given pool. The user_defined_pool name can contain any descriptive name but must not contain the symbols < (less than) or > (greater than).
Section: <VolumePoolDefinitions>
Feature: Volume Pooling
The user-defined pool sections that follow this topic contain the attributes.
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