Setting up monitoring maintenance mode
When a monitored object, such as a disk drive or power supply, goes offline for maintenance, the ESI Service detects the condition and may generate numerous alerts and notifications.
To prevent ESI Service and the ESI Management Packs creating alerts and notifications, you can set the monitored object to maintenance mode. When an object is in maintenance mode, alerts, notifications, rules, monitors, automatic responses, state changes, and new alerts are suppressed by SCOM.
For more information on setting a monitored object to maintenance mode in SCOM, see How to Put a Monitored Object into Maintenance Mode in Operations Manager 2007 on Microsoft TechNet.