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NSR: Restricting Conversion to Local Shared Resources

Default: NSR, unless random processing specified in ACB.

The NSR control has no operands and forces CA Hyper-Buf to use NSR buffering. NSR buffering can benefit mixed-mode files (for example, both random and sequential or skip sequential) if a substantial amount of the processing is sequential. If neither LSR nor NSR is specified, the default action is as follows:

OPEN  FOR  SEQUENTIAL   PROCESSING  - NSR  BUFFERING OPEN   FOR  MIXED PROCESSING   - NSR  BUFFERING OPEN   FOR  RANDOM PROCESSING   - LSR  BUFFERING

CICS Requirements: If you request CICS files to be buffered by including the DFHSIP program, the DFHCSD, DFHRSD, DFHLCS, and DFHGCD files must be specified with NSR. IBM does not support these files in an LSR-buffered environment. The following shows a sample using NSR:

MODE=INCLUDE 

PROGRAM=DFHSIP

DDNAME=DFHCSD NSR 

DDNAME=DFHRSD NSR 

DDNAME=DFHLCD NSR 

DDNAME=DFHGCD NSR