Reformatting communication files for only one SMFID

The method described here enables the CTOFS3 utility to reset the record entry for one SMFID in a monitor-to-subsystem (M2S) communication file without shutting down the monitors for all the computers in a complex. The CTOFS3 utility in the LOAD library is invoked by the FORMSUB3 job from Control-M JCL library.

This method is faster and easier than the method described above under the topic Adding, deleting and/or changing an SMFID in the computer list. However, this faster method can only be used if CMEM or Control‑O is installed and the following requirements are met:

• Only one SMFID is being modified. No additions, no deletions, and no other modifications are being made.
• Control‑M is not running.
• Neither CMEM nor Control‑O is running in the computer with the SMFID that matches the monitor-to-subsystem record entry that needs to be reset.
• This method can be used only when real SBS2CTM files are used instead of the SYSTEM LOGGER. Ensure that SYSTLOGR=N in IOACPRM.

The advantages of this method are

• reduced Control‑O, CMEM and Control‑M downtime
• fewer required actions

To modify the monitor-to-subsystem record of an SMFID using this method, perform the following steps:

1. Stop Control‑M.
2. Stop CMEM or Control‑O in the computer with the SMFID that matches the monitor-to-subsystem record entry that needs to be reset.
3. Submit the FORMSUB3 job for execution in the computer with the SMFID that matches the entry you need to reset.
4. Delete the subsystem-to-monitor file defined in the SYSID parameter in the IOACPRM member that matches the SMFID you want to reset.
5. Submit the FORMSUB2 job for execution in the same computer in which the FORMSUB3 job ran.

   The FORMSUB2 job allocates and formats a subsystem-to-monitor (S2M) file for the SMFID that enables the Control‑M Event Manager or Control‑O monitors to communicate with the Control‑M monitor. For details, see Step 7.4 – Allocate and/or format communication files (for non-Sysplex environments).

6. Restart Control‑M.
7. Restart CMEM or Control‑O.