Overall VSAM Optimization processing option

With the Overall VSAM Optimization processing option, you can specify the overall optimization mode that Data Optimizer should use for VSAM data sets. These Optimization modes are similar to those for the Optimization mode option except they allow you to select the optimization mode specifically for VSAM processing from other processing.

With the Overall VSAM Optimization processing option, you can allow both BASIC optimization of VSAM processing and ADVANCED non-VSAM processing. By default, optimization of VSAM processing is at the same level as all other processing. Overall VSAM Optimization mode consists of the following mutually exclusive options: ADVANCED, BASIC and NONE.

VSAM optimization processing option

Parameter	Description
ISPF dialog field name	Overall VSAM Optimization Mode
Options	ADVANCED, BASIC, or NONE: ADVANCED chooses LSR or NSR for VSAM data sets along with the buffer values, regardless of which buffering technique you choose BASIC optimizes only the NSR BUFND and BUFNI values for VSAM data sets NONE tells Data Optimizer not to perform performance optimization for VSAM output data sets
Default	Current setting of Optimization mode
DD overrides	`DAP@VSA - Advanced` `DAP@VSB - Basic` `DAP@VSN - None`
Data policy keywords	ADVANCED, BASIC, NONE

Related topic

Optimization mode overrides

Overall VSAM Optimization processing option

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