Users typically have the expectation that availability checks will reflect AS servers going up or down IMMEDIATELY. Given that is not the case, we should think about how to indicate to the user that we are polling for avail and are not event driven, e.g. next to the Resource's availability badge we have a label saying:

    Polling every: <X>
    where <X> is taken from the availability schedule.

Another option which I believe we may have already investigated is triggering an availability scan as part of an operation. However I do not expect this will provide the IMMEDIATE feedback users expect, i.e. as soon as the start or stop operation has executed that the availability icon will be updated to match appropriately. However I don't view this as sufficient since this requires updates to any plugin to take advantage of this feature and also doesn't address out-of-band changes, e.g. someone stopping an AS instance via the terminal versus through JON.