Sun Cluster Data Service for MaxDB Guide for Solaris OS

Factors That Affect the Interval Between Fault Monitor Probes

To determine whether SAP xserver and the MaxDB database instance are operating correctly, the Sun Cluster HA for MaxDB fault monitors probe these resources periodically. The optimum interval between fault monitor probes depends on the time that is required to respond to a fault in a resource. This time depends on how the complexity of the resource affects the time that is required for operations such as restarting the resource.

For example, SAP xserver is a much simpler resource and can be restarted much quicker than MaxDB. Therefore, the optimum interval between fault monitor probes of SAP xserver is shorter than the optimum interval between probes of MaxDB.