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Front-end process to ACBGEN

PFXAGEN invokes IMS ACBGEN without modifying the ACBGEN utility program.

IMS ACBGEN is invoked in the same way it is invoked during a normal IMS ACBGEN procedure. You must use PFXAGEN so that it can perform a front-end process to IMS ACBGEN for PFX-related control blocks. PFXAGEN builds PFX control blocks and saves them in the PFXLIB data set. These control blocks are used only by Fast Path Indexer/EP, and are required to process PFX indexes.

By allowing PFXAGEN to obtain control before IMS ACBGEN, Fast Path Indexer/EP ensures that all applicable control blocks are updated and generated appropriately.

PFXAGEN identifies all PSBs that refer to a PFX-defined database. If you do not replace your existing IMS ACBGEN procedure with PFXAGEN, ensure that you do not accidentally run IMS ACBGEN for PFX-related PSBs and DBDs. If you run the IMS ACBGEN, it deactivates PFX for PFX-related PSBs and DBDs.

Warning

Note

BMC recommends that you replace your current IMS ACBGEN procedure with the PFXAGEN procedure to avoid out-of-sync situations that could occur between the control blocks that reside in PFXLIB and the ACBs that reside in ACBLIB.

PFXAGEN uses the DBDs and PSBs that were created during the index registration process to build the PFX control blocks that are stored in the PFXLIBx data sets. These control blocks contain information that Fast Path Indexer/EP needs to process the defined databases. PFXAGEN creates PSB entries for each PSB that refers to a defined primary DEDB or a PFX index. The following figure illustrates the PFX index registration process.

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Related topic

Overview-of-PFXAGEN



 

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Fast Path Indexer/EP 4.0