This section describes attributes that you use to define volume pools and VOLSER ranges that CA Vtape uses. You can define up to eight volume pools.
Volume pools are used to select the VOLSER assigned to a virtual scratch mount. When a scratch mount occurs, filters defined in the OSFILTR member assign a group number to the mount. The Group Section assigns a pool name that is defined in the OSPOOLS member. The Pool Section contains a VOLSER range from which a VOLSER is chosen to satisfy the mount.
The volume pool definitions can be dynamically reloaded by using the SVTn REFRESH=POOLS console command.
When this command is issued, CA Vtape dynamically adds and deletes ranges as appropriate using the latest attributes defined within the OSPOOLS member. The volume pool definitions are global in scope, therefore all Subsystems sharing the control files are modified when this command is issued.
This section serves as an index to the user that is defined pool sections. The attributes associate a user that is defined pool section with a specific pool.
This section contains attributes which define volser ranges that are associated with a given pool of virtual VOLSERs.
Valid Values: A valid user that is defined section name. The value that you enter must match a section name that is enclosed in greater than and less than signs. Also, the section must be in the same Parmlib member as the Volume Pools Definition Section itself.
Section: <VolumePoolDefinitions>
Feature: Volume Pooling
Defines a virtual VOLSER range within the pool. Specify as many ranges as necessary to define the total number of Virtual Volumes within the pool. The first non-matching character of the VOLSER range is the Virtual Volume prefix. The first character is always considered a prefix character. The suffix characters must be '00' in the low VOLSER of the range and '99' in the high VOLSER of the range.
Valid Values:
Defines the minimum range of 100 VOLSERs where vvvv would be a unique prefix value.
Defines a range of 1000 VOLSERs where vvv would be a unique prefix value.
Defines a range of 10000 VOLSERs where vv would be a unique prefix value.
Defines a range of 100000 VOLSERs where v would be a unique prefix value.
Section: <VolumePoolDefinitions>
Feature: Volume Pooling
Overrides the virtual tape cartridge capacity of new scratch volumes. If you do not specify a value, the virtual tape cartridge capacity is the size that was specified during CA Vtape installation.
Valid Values: 400M|800M|2G|4G|8G|16G
Section: <VolumePoolDefinitions>
Feature: Volume Pooling
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