z/OS MVS Programming: Sysplex Services Guide
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Defining a Storage Class for a Data Item

z/OS MVS Programming: Sysplex Services Guide
SA23-1400-00

Whenever you use IXLCACHE requests to create a directory entry for a data item or to write a data item, you must also specify a storage class for the data item. The system uses the data item's storage class assignment to reclaim storage in the cache structure for new requests.

For More Information

For information about identifying a data item to the cache structure, see:

For information about registering interest in a data item, see Maintaining Data Consistency.

For information about assigning a storage class, see Managing Cache Structure Resources.

Parent topic: Identifying a Data Item to the Cache Structure

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