The agent performs the following actions as part of its online function:

• Checks if the mailbox database file is available on the configured volume.

• Checks the status of the Microsoft Exchange Information Store (MSExchangeIS) service and starts the service if it is not running.

• Starts the MSExchangeADTopology, MSExchangeRepl, MSExchangeSA, and MSExchangeMailSubmission Exchange services.

• Mounts the Exchange mailbox database on the system.

The agent performs the following actions as part of its monitor function:

• Verifies the status of the mailbox database on the system. If the database is mounted, the agent reports the resource as ONLINE. If the database is dismounted, the agent resource is marked as OFFLINE.

• If the agent cannot retrieve the database status, the agent queries the Service Control Manager (SCM) for the status of the Microsoft Exchange Information Store (MSExchangeIS) service. If the service is running, the agent reports the resource as UNKNOWN; otherwise the resource is marked as OFFLINE.