IPL required for DBPCCPR maintenance when loaded from STEPLIB - Datacom
Article ID: 449196
Updated On:
Products
Issue/Introduction
When implementing maintenance for Datacom Program Call (PC) routine DBPCCPR , specifically the vulnerability fix LU20904, the module must be refreshed for the solution to take effect. Customers who load DBPCCPR dynamically via STEPLIB instead of using CAIRIM need to be aware of the activation requirements.
Environment
- z/OS
- Datacom/DB 15.x
- Datacom/AD 15.x
Cause
The DBPCCPR module provides Program Call (PC) routines. While Datacom MUF can load this module from STEPLIB, it cannot dynamically refresh the module in common memory once it is active. Only CAIRIM provides the facility to refresh these routines without a system restart.
Resolution
If DBPCCPR is loaded from STEPLIB and not via CAIRIM, an IPL is required for PTF maintenance (such as LU20904) to take effect.
To implement the fix:
- Apply the PTF LU20904 to the environment.
- Perform an IPL of the z/OS system.
Alternatively, to avoid an IPL for future maintenance, configure CAIRIM to manage the DBPCCPR module. When CAIRIM is used, the module can be dynamically refreshed without an IPL.
Additional Information
Additional limitations when DBPCCPR is not loaded from CAIRIM can be found on the Establishing Communication with z/OS page:
If not installed by CAIRIM, there is no support for XCF, RRS, or DBUTLTY functions, or requirements that cannot be done in problem mode.
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