Web Application (URL) Monitoring also need Resource Pool Concept to ensure 100% availability of monitoring during disaster
It’s obvious that alerts generated for all monitored URLs when assigned watcher nodes (SCOM servers in most cases) unavailable for quite sometime during reboot (as part of patching) or disaster recovery. It really causes confusions to customers when their application or URL is available. I feel having resource pool concept will really help to improve these situations.
I'm using a Resource pool (that I created and assigned MS manually) for years now. Works well.