Monitor Control Callback Methods

A resource type implementation optionally can include a program to monitor the performance of a resource, report on its status, or take action when a resource fails. The Monitor_start, Monitor_stop, and Monitor_check methods support the implementation of a resource monitor in a resource type implementation.

Monitor_start

This optional method is called to start a monitor for the resource after the resource is started.

Monitor_stop

This optional method is called to stop a resource's monitor before the resource is stopped.

Monitor_check

This optional method is called to assess the reliability of a node before a resource group is relocated to that node. You must implement the Monitor_check method so that it does not conflict with the concurrent running of another method.