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Considerations for a Store-in Cache System z/OS MVS Programming: Sysplex Services Guide SA23-1400-00 |
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If you write a changed data item to the cache structure without also writing the data item to permanent storage, specify CHANGE=YES. This technique is typically used in a store-in cache system. You must also specify COCLASS to assign the data item to a cast-out class. Optionally, you can specify PARITY to assign parity bits to the data item and USERDATA to provide user-defined data for the directory entry. |
Copyright IBM Corporation 1990, 2014
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