Monitors backup farm metric servers in a Citrix farm
Knowledge Base article:
If the backup farm metric server is promoted to become the primary farm metric server, revision-specific or farm-wide metrics functionality alerts are not reported in the Access Management Console.
The version of Citrix Presentation Server installed on the backup farm metric server is not the latest available on the farm.
Upgrade the backup farm metric server, or promote another server to become the backup farm metric server by clicking Change Farm Metric Servers on the Farm Metric Server tab in Resource Manager in the Presentation Server Console.
External Knowledge Sources
The following sources of information can be helpful when dealing with this error:
Monitoring Server Performance with Citrix Presentation Server