After a period of usage after installation and deployment, you can develop an awareness of how frequently you should be polling hardware health attributes and OS resource utilization attributes, and how often you need to poll your network reachability. Your configuration of the N1 System Manager depends on what your priorities are, in terms of crucial events. When setting polling intervals, or when changing default polling intervals, consider the number of servers you are managing with your N1 System Manager software. Consider also the application loads or application expected loads of your provisionable servers, and the capabilities of your network. Your expected responsiveness to events is also relevant. If you are able to react quickly to events as they occur, polling more frequently is appropriate.
For further information about tuning polling intervals for your installation, see To Increase the N1 System Manager Performance in Sun N1 System Manager 1.1 Installation and Configuration Guide.