System Availability Monitoring (SAM)

CICSPlex® SM has a system availability monitoring (SAM) function that monitors CICS® systems during their planned hours of availability.

If any of a set of predefined conditions occurs while a CICS system is being monitored, CICSPlex SM sends out external notifications at the start of the condition and also when it is resolved. The conditions are:

SAMMAX: CICS has reached maximum tasks.
SAMOPS: The CICS system is not available.
SAMNRM: A CMAS has lost contact with an active MAS that it is managing.
The SAMNRM event is raised after the MAS fails to respond to a query from the CMAS for a period of 60 seconds. Unlike other SAM conditions, this event can be detected only when the CMAS interacts with the MAS. The condition is not detected if no CMAS to MAS interaction occurs.
SAMSDM: A CICS system dump is in progress.
SAMSOS: A CICS dynamic storage area (DSA) is short on storage.
SAMSTL: One or more tasks in a CICS system are stalled because of contention for resources such as DBCTL, DL/I, transient data, files, journals, and temporary storage .
SAMTDM: A CICS transaction dump is in progress.

For example, if CICS system AORPAY2 must be active from 0900 hours to 1200 hours and CICSPlex SM finds it inactive at 0930 hours, CICSPlex SM issues external messages by default. A typical response, from the CICSPlex SM operator or from an automation product, would be to try to restart the CICS system, or perhaps to start another.