Select this parameter:

If you want to:

CPU

Enter the percentage of CPU capacity that, when exceeded, causes the monitor to fail.

Monitor CPU state on the Exchange host.

Memory

Monitor free memory on the Exchange host.

Disk

Set thresholds on disk reads and writes for the Exchange server host.

Property	Definition
Bytes read	Enter the maximum number of bytes read per second allowed before the monitor fails.
Bytes write	Enter the maximum number of bytes written per second allowed before the monitor fails.

 

Monitor available disk space on the Exchange host.

System

Monitor operating system performance on the Exchange host, including context switches, CPU queue length, and system calls.

Links

Monitor message-handling links between mail servers. A link can contain zero or more ExchangeQueue objects, depending on the current message traffic along the link. In the Exchange System Manager, these links are called queues.

Queues

Monitor the dynamic queues created to transfer individual messages between mail servers. An ExchangeQueue is part of an ExchangeLink. ExchangeQueue objects are not the same as the queues listed in the Exchange System Manager.

Cluster

Monitor the state of the clustered resources on the Exchange server. This parameter will return a value of Unknown - 0; OK - 1; Warning - 2; Error - 3.

Custom Thresholds

Browse and select from the large number of additional parameters that Microsoft Exchange reports.