ENF Event Code 41
Table 18. Using ENF event code 41 to guide data collection for policy changes| Event | Signal and qualifiers | Expected action |
|---|
| VARY WLM, POLICY= | WLMENF11, WLMENF12, WLMENF13 |
- WLMENF11
- Indicates the policy change has begun. The performance monitor
should invoke IWMRCOLL to obtain a copy of the last available data,
and wait for WLMENF12. The performance monitor should save the copy
as the last available for the interval.
- WLMENF12
- Indicates the policy was successfully activated on this system.
To get a copy of the new policy information, the performance monitor
should issue the IWMPQRY macro. The performance monitor should then
reinitialize its workload activity reporting fields and resume data
collection.
- WLMENF13
- Indicates the new policy was not activated
on this system, but may have been activated on some systems in the
sysplex. This system is potentially running with a different policy
than the rest of the systems in the sysplex. The performance monitor
should acquire the current policy information by issuing the IWMPQRY
macro. The performance monitor should reinitialize its data collection
fields and indicators and resume data collection with subsequent IWMRCOLLs.
The performance monitor could alert the customer that this system
is not running with the active service policy.
| | System failure | WLMENF31, WLMENF32, WLMENF33 |
- WLMENF31
- Indicates workload activity reporting failed, recovery has begun.
Do not issue IWMRCOLL until recovery is complete.
- WLMENF32
- Indicates workload activity reporting recovery was successful.
Start a new reporting interval.
- WLMENF33
- Indicates workload activity reporting recovery was unsuccessful.
Do not issue IWMRCOLL as no data is returned until the next IPL.
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z/OS MVS Programming: Workload Management Services
Copyright IBM Corporation 1990, 2014