OCACHE

Note

This keyword was introduced to improve I/O speed. Owing to hardware and DASD advances since that time, this improvement is no longer significant. If you already use the OCACHE keyword in your JCL statements, there is no reason to remove it. However, there is no benefit to new customers in using this keyword.

Use the OCACHE keyword to specify the types of control intervals to hold in storage until all processing has completed.

All control intervals held in storage in this way are written to DASD when the data set is closed. A data space is used to implement the output cache.

Use

OCACHE is an optional keyword for the following commands:

CHANGE
RELOAD

Related keyword

ICACHE

Syntax

OCACHE=<parameter>
OCACHE=(<parameter1>,<parameter2>)

Parameters

Specify one or more of the following parameter values:

Value	Description
IOVF	Keep IOVF and space map control intervals in storage.
SDEP	Keep SDEP control intervals in storage.

Default

None

Alias