Isolating the Causes of the Degraded Performance


Having identified the symptoms of poor Exchange performance, you need to determine the cause or causes of the observed symptoms. The standard causes that negatively affect Exchange performance include:

  • Third-party or support applications

  • High utilization of disk space

  • High utilization of memory

  • Contention for processor time

  • Network configuration or deployment

  • Poor access to global catalogs in Active Directory

This section describes each of these causes, defines which performance counters to observe in relation to each cause, and offers suggestions on how to mitigate each cause for better performance.