I- Identify the counters dealing with any latencies on your server
(e.g. RPC Average Latency from MSExchangeIS Mailbox, from MSExchangeIS Client (*), as well as RPC Averaged latency from MSExchangeIS …)
Format the cells that contain the “Latency” keyword in the headers to show in a colour (Red in my example)
You can copy all the “Latency” columns to an other Excel TAB, that will make the graph generation , the reading and the reporting easier.
To make is easier to read, also make sure you copy the first column of the performance log, which is the timeline column.
II- Identify the counters dealing with users statistics on your server
(e.g. User Count, Active User Count, Connection count, Active Connection Count for MSExchangeIS and RPCClientAccess)
Format the cells that contain the “Count” keyword in the headers to show in an other colour (yellow in my example)
Again, you can copy and paste these identified columns on a separate TAB along with the time column to easier create the graph, and have a more efficient analysis.
III- Identify the counters dealing with the RPC operations done every second ...
(e.g. RPC Operations/sec from MSExchangeIS Client (*), from MSExchange RPCClientAccess …)
Format the cells that contain the “RPC Operations” keyword in the headers to show in an other colour (brown in my example)
Again, you can copy and paste these identified columns on a separate TAB along with the time column to easier create the graph, and have a more efficient analysis.
IV – First analysis and next steps
That comes up with a first basic analysis, confirming whether or not your Exchange server is too slow, causing Outlook client experience issues (RPC dialog box, client freezing, …)
The next step is to see what is causing those RPC latencies, then you’ll have to check the counters dealing with :
- LDAP Read or Search times (network or GC sizing)
- CPU issue (sizing)
- Disk latency (sizing)
- Memory issue (sizing or leak)
- Network errors (NIC configuration or hardware issue)
For the thresholds of these, check the following link :