When the Control-M interface to the IBM Health Checker facility is enabled, the Control-M monitor communicates with IBM Health Checker to run appropriate checks to ascertain the status of various Control-M components, subtasks and repositories. The Control-M monitor then alerts the user to any potential Control-M problems via Health Checker reporting facilities. For more information on the IBM Health Checker, see the IBM Health Checker for z/OS User's Guide (for z/OS 1.8 or above).
The following checks are available:
Job processing delay - reports when one of various Control-M components or subtasks (Submitter, Selector, Spyer) are not responding or experiencing undue delays during job processing.
Active Jobs File (AJF) status - exception messages are issued when the Control-M AJF utilization threshold has been reached or exceeded.
CTMPARM synchronization - reports inconsistencies between the values set in the CTMPARM member of the IOA PARM library and the in-memory values of the CTMPARM parameters.
DORMANT jobs check - exception messages are issued, when one or more jobs are sitting in the Active Jobs file (AJF) for more than the defined number of days.
Control-M Monitor Virtual Storage Consumption check - alerts you when the amount of available storage below the 16 MB line or above the 16 MB line falls below a certain threshold.
IOALOG INDEX File Status check - checks the condition of the INDEX file for the IOA Log, and alerts you when the level of correspondence between the INDEX file and the information in the IOA Log falls below a certain threshold percentage.
The Control-M interface to the IBM Health Checker is controlled by parameters set in the CTMPARM member of the IOA PARM library. These parameters specify whether to enable the health checker interface, whether to enable each of the health checks, and the time interval at which the health checks should be run. All of these parameters may be dynamically changed without restarting the Control-M monitor. For more information on setting and modifying these parameters, see the INCONTROL for z/OS Installation Guide.
