AIXBLD

Default
OFF (Non-CICS®); N/A (CICS)
Recommended
OFF (Non-CICS); N/A (CICS)
Considerations
The AIXBLD option allows alternate indexes to be built at run time. However, this may adversely affect the runtime performance of the application. It is much more efficient to use Access Method Services to build the alternate indexes before running the COBOL application than using the AIXBLD runtime option. Note that AIXBLD is not supported when VSAM data sets are accessed in RLS mode.

Related references
AIXBLD (COBOL only) (z/OS® Language Environment® Programming Reference)
AIXBLD (COBOL only) (z/OS Language Environment Customization)