Monitor Historian Performance

Historian provides a variety of performance counters and performance tags that can be used to monitor how well the Historian components are performing. These performance tags or counters can also be used to determine the resource usage on the computer that runs the Historian application.

Use performance tags to view information in an Excel report or SDK program, possibly along with other Historian tags. Use performance counters to view information in Windows Performance monitor, possibly along with non-Historian counter information.

Performance counters are useful when the Historian Web Admin console is not installed or cannot connect. Like any Windows performance counter, you must add the counters for collection to view history. Performance tags are always being collected and you can view past data any time.

Performance counters are updated in real time. Performance tags are updated once per minute with the activity over the last minute.

Performance counters contain more information than tags. Any counter can be collected to a tag using the Historian Windows Performance Collector. Those tags will count against your licensed tag count.