DHCP Scope % Available Monitor Broken For Tiny Scopes
Today I found in our weekly health check we have two DHCP servers that SCOM is collecting thousands of DHCP events from. The reason for the event spam is that they have a DHCP scope that has run out of addresses. These scopes are small, one is four addresses and one is five. The "DHCP Server 2016 and 1709+ IPV4 Individual Scope Addresses Available Percentage Monitor" monitor is enabled on these scopes with default thresholds, but remains in a healthy state. I have verified that the "DHCP.10.0.IndividualScopesProbe.ps1" runs successfully on the server, and returns a percentage free of "0" for these scopes, but the monitor never changes state.