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Using Exit Routines to Influence Device Selection

TPCF provides three exit routines that you can use to influence device selection during allocation and allocation recovery:

TPCEDLXT

TPCF uses elimination logic to mark devices ineligible in the EDL early in the z/OS allocation process. Therefore, you can use this routine to unconditionally prevent devices from being candidates for allocation.

TPCRECXT

Customizes the TPCF processing of allocation recovery messages. You can use this routine to address site-specific process needs that are not completely served by the CA MIA standard recovery options.

TPCSRMXT

Customizes the TPCF device preferencing to address site-specific needs not completely served by the CA MIA standard preferencing options.

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