Where can I find information about performance counters for Microsoft Exchange?
Technet has a huge list of the performance counters for Exchange with descriptions and threshold levels on the ones that are critical.
Here you will find counters for these exchange functions:
- Common Counters
- Virtualization Counters
- Client Access Counters (CAS Server)
- Mailbox Servers (MBX Server)
- Transport Server Counters (TS)
- Unified Messaging counters