Hi nicksta,
How much UPS device do you have to protect your cluster?
I ask because (haven't checked on in this in a while, could've changed) when using only 1 UPS you can't use the maintenance mode setting in IPM.(Eaton recommends it to be turned off).
Are you using HA? Is the Shutdown command working and you need only Maintenance mode?
Can you elaborate on what it is exactly you're trying to do?
Thanks.