Reading the nsm 2.5 install docs and found the following:

Best Practices for NSM Event Monitors
Things to be aware of when designing the NSM Event Monitor placement:

Two (2) Event Monitors are needed per replica ring.

The NetWare and OES2 Linux based Event Monitors can both be used to monitor the same replica, but not the same server.

Having 2 event monitors makes a lot of sense (we run 3) and excuse me if I'm being a bit thick but, any clues as to what "The NetWare and OES2 Linux based Event Monitors can both be used to monitor the same replica, but not the same server." means? Does this mean you can't run an event monitor on a virtualized netware box where the host is also running an event monitor or am I missing something?