Use an RMF Monitor III reporter version equal to or later than your RMF Monitor III gatherer version
Description
To avoid problems when reporting Monitor III data, use an RMF™ reporter version that is equal to or later than the latest RMF gatherer version used to collect the data to be reported. For example, it is safe to use an RMF reporter version from z/OS® V2R2 for data collected with an RMF gatherer from z/OS V1R13, but not vice versa.
Mixed
(and therefore problematic) levels of collected data can occur in
the following scenarios:
- Single system: You install and test a new release, then fall back to an earlier one; your data sets might contain data collected with different versions of the RMF gatherer.
- Sysplex: You migrate to a new release on one system in a sysplex but try to use an earlier reporter version from another system to report on the migrated system's data.
Table 1 provides more details about this migration action. Use this information to plan your changes to the system.
| Element or feature: | RMF. |
|---|---|
| When change was introduced: | General migration action not tied to a specific release. |
| Applies to migration from: | z/OS V2R1 and z/OS V1R13. |
| Timing: | After the first IPL of z/OS V2R2. |
| Is the migration action required? | Yes, if you had planned to use an earlier level RMF reporter on data that was collected with a later level RMF gatherer. |
| Target system hardware requirements: | None. |
| Target system software requirements: | None. |
| Other system (coexistence or fallback) requirements: | See Steps to take. |
| Restrictions: | None. |
| System impacts: | None. |
| Related IBM® Health Checker for z/OS check: | None. |
Steps to take
Always use an RMF Monitor III reporter version that is equal to or later than the gatherer version used to collect the data from which you want to produce a report.
Note: Monitor
III notifies users by issuing information message ERB948I when a reporter
session is started on a system in a sysplex that is not running with
the highest RMF level available
in the sysplex. The message helps users to avoid reporting problems.
Reference information
For more information, see z/OS RMF User's Guide.