Changing monitoring interval overrides
By default, the monitors communicate with the ESI Service approximately every six minutes to check the status of the systems. In a large storage environment, the ESI controller host, the SCOM agent, or the SCOM Management Group machines may experience a resource (CPU or memory capacity) shortage. Increasing the monitoring interval can help alleviate this type of shortage.
The ESI Service interval setting combined with the ESI Service system refresh interval number is the maximum frequency for receiving monitor updates in SCOM. For example, with this interval set to 600 seconds (about 10 minutes) and the ESI Service system refresh interval set to 30 minutes, an updated health state can take up to 40 minutes. The time intervals can affect the data performance. Changing the system refresh interval provides details on the ESI Service interval.
How to Monitor Using Overrides on the Microsoft TechNet website has more details.
To change the SCOM overrides for the ESI Monitoring management packs:
Open the SCOM Operations Console and connect to the SCOM Management Group.
From the menu bar, select Go > Authoring or select Authoring from the lower left pane.
From the left pane, select Monitors.
Locate and double-click the EMC component and monitor that you want to change.
Open the Overrides properties and select one of the following choices:
For all objects of class: to override the rule for all objects
For a specific object of class: to override for a specific object.
Select the EMC Storage Integrator Customizations management pack.
Change the Interval (sec) property to your preferred time. The default value is 600 seconds (about 10 minutes).
Click Apply and verify the changed values.
Note: The Timeout Value (sec) value needs to remain unchanged. If you reduce it, monitors can fail before retrieving all of the data. And if you increase it, performance problems may occur.