Source: Microsoft Internal
Do you want to know to which agents report to a specific Management Server? Just execute the next code in your OpsMgr Command Shell.
Function GetSpecificAgents ([string]$managementserver)
write-host "The following servers have $managementserver as their primary management server:"
FOREACH ($i in get-agent)
IF ($i.PrimaryManagementServerName -eq $managementServer)
GetSpecificAgents "<FQDN of management server>"
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