We were running low on available monitored volumes, so I started attempting a cleanup to get rid of some of the stuff that we don't care about that snuck in through laziness or inattention when setting up nodes in the first place, or just for things that have been reconfigured.
What I'm finding, though, is that monitored volumes that no longer exist on the target node can't be removed. That they show up green even though they're not present is a whole other issue...
E.g. this server had an iSCSI disk mounted as Z: and sometime in the distant past, someone chose to monitor it. That iSCSI device hasn't been around in over a year. Trying to remove it from monitoring is not doable, since it's not shown in the Resources tree.
I've tried using the "None" option, hoping it would strip all monitored resources, but I was left with JUST the obsolete Z: drive.
Short of deleting all nodes that exhibit this sort of thing and re-adding them, how do we work around this?
Same thing for a couple of servers that at one time were running Hyper-V (they never should've had the role installed in the first place, but I digress) and have since had the HV role removed. They still show up under the Virtualization section with red icons. I can't uncheck Hyper-V on them, since it doesn't show up.