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Enabling the Fast Path/EP common control block

If you are installing any Fast Path/EP online product and both of the following conditions exist, you must enable the Fast Path/EP common control block (CCB):

  • You have an IMS version 11.1 environment.
  • In this environment, 64-bit buffering is enabled.
Warning

Note

The Fast Path/EP library must be included in the IMS control region STEPLIB.

To enable the Fast Path/EP CCB

Warning

Note

The Fast Path Online products require a common control block (CCB) for operation in a 64-bit buffering environment for IMS 11.1 or later. Only one CCB is required per logical partition (LPAR). During the first IMS initialization on the LPAR after Fast Path/EP is installed, the CCB is created. The CCB will be shared with all subsequent IMS systems that are started on the LPAR.

  1. Set up the IMS control region to handle initialization and usage of a Fast Path/EP online product.The applicable APF-authorized load libraries are IMLIB (if you chose the merged installation option) or ICOLIB and PFPLIB (if you chose the non-merged installation option). Insert the libraries ahead of any other APF-authorized STEPLIB library in the IMS control region if that library contains the IMS version of module DFSMVRC0. Also insert it ahead of any sharing partners’ libraries in the STEPLIB concatenation. If you are executing IMS with LSO=S, you must also take this action for the DLISAS region STEPLIB.

    By installing the BMC version of DFSMVRC0 as a front-end to the IBM version of DFSMVRC0, you enable the operating system to load the Fast Path/EP dynamic usermods first when starting an IMS system. The BMC version of DFSMVRC0 then correctly loads the IMS copy of the load module.

    When the BMC version of DFSMVRC0 is properly installed, message BMC128013I is issued in the IMS control region to indicate that control region initialization is complete.

  2. Restart the IMS control region.

Related topic

Customizing-online-products



 

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BMC AMI Database Advisor for IMS 3.2