Watching Service Times

The counters described here do not provide a complete picture of the responsiveness of your Microsoft Exchange Server computer, but they do indicate trends over time if you track them.

Object Counter Description

MSExchangeIS Private Send Queue Size Indicates whether the private information store is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.

Average Time for Delivery Indicates how long it takes the private information store to deliver messages.

MSExchangeIS Public Send Queue Size Indicates whether the public information store is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.

Average Time for Delivery Indicates how long it takes the public information store to deliver messages.

MSExchange
MTA Work Queue Length Indicates whether the MTA is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.

Object	Counter	Description
MSExchangeIS Private	Send Queue Size	Indicates whether the private information store is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.
	Average Time for Delivery	Indicates how long it takes the private information store to deliver messages.
MSExchangeIS Public	Send Queue Size	Indicates whether the public information store is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.
	Average Time for Delivery	Indicates how long it takes the public information store to deliver messages.
MSExchange MTA	Work Queue Length	Indicates whether the MTA is keeping up with the submitted load. The queue can be non-zero at peak traffic times, but it shouldn't stay there long after the peak has passed.