Monitoring the Client Access Servers

eG Enterprise prescribes a specialized Microsoft Exchange CAS model for monitoring Client Access servers.

Figure 1 : The layer model of the Client Access server

Each layer of Figure 1 reports critical performance metrics extracted from the Client access server, that enable administrators to answer the following questions easily and effectively.

• How efficient is the ActiveSync engine? Is it taking too long to process requests? How many requests to ActiveSync are still in queue?
• Were requests to the Availability service processed quickly?
• Were all connection requests to mailboxes serviced by the cache, or were any requests missed?
• What is the current session load on Outlook web access (OWA)?
• Does OWA respond swiftly to user requests?
• Does OWA take too long to complete search requests?
• Did any requests for web access fail?
• Is the Exchange web server responding promptly to requests?