Applying APARs (Authorized Program Analysis Reports) and PTFs (Program Temporary Fixes) on z/OS involves using SMP/E (System Modification Program/Extended), IBM's tool for managing software modifications on mainframe systems. Here's a general overview of the process:
- Identify the APAR or PTF: Determine the APAR or PTF that addresses the issue you are trying to fix. APARs are official reports of software defects, while PTFs are the fixes provided by IBM or other software vendors to address those defects.
- Obtain the PTF: You can obtain PTFs from IBM's Support website or through other authorized channels. Make sure you have the correct PTF and any prerequisite PTFs identified.
- Allocate a Target Library: Allocate a target library or dataset where the PTF will be applied. This library should be defined as a SMP/E target zone.
- Receive the PTF: Use the SMP/E RECEIVE command to bring the PTF into your SMP/E environment. This command copies the PTF into the SMP/E Global Zone, where it is cataloged and tracked.
- Apply the PTF: Use the SMP/E APPLY command to apply the PTF to the target library allocated in step 3. SMP/E will process the PTF, checking for any dependencies and applying the necessary modifications to the target datasets.
- Accept the PTF: After applying the PTF, use the SMP/E ACCEPT command to confirm the acceptance of the PTF. This updates the SMP/E database to reflect the successful application of the PTF.
- Perform Verification: It's essential to verify that the PTF has been applied correctly and that the issue it addresses has been resolved. This may involve testing the affected functionality or running verification procedures provided by the software vendor.
- Cleanup and Documentation: Once the PTF has been successfully applied and verified, you can clean up any temporary datasets or libraries created during the process. It's also important to document the applied PTF for future reference.
- Consider Backout Procedures: In case the applied PTF causes unexpected issues, it's essential to have backout procedures in place. SMP/E provides facilities for backing out PTFs if necessary.
- Monitor for Future Updates: Keep track of new APARs and PTFs released by IBM or other software vendors relevant to your environment to ensure that your system remains up-to-date and secure.
Remember that the specific commands and procedures may vary depending on your environment and the version of z/OS you are using. Always refer to the official documentation provided by IBM for detailed instructions on applying APARs and PTFs using SMP/E.