To add enclosures:
The primary and secondary (optional) IP addresses or DNS name of the Onboard Administrator and the login information are required to add enclosures.
The Add Enclosure wizard appears. The wizard validates the information with the Onboard Administrator before adding an enclosure. The wizard also ensures that the Onboard Administrator meets the minimum supported firmware version.
The Monitoring Service starts monitoring the enclosures immediately after the wizard completes. However, newly added enclosures are not available in the System Center Operations Manager Console until the next discovery cycle completes.