This is a write-triggered action object for enabling or disabling a named feature -- writing enable or disable triggers that action, writing anything else has no effect, and reading it back always returns noOp since it is not a persistent state. The always-noOp-on-read behavior is a specific gotcha: an admin or script that reads this object expecting to see the feature's current enable/disable state will always get a meaningless answer and must instead poll cfcFeatureCtrlOpStatus or cfcFeatureCtrlLastAction to actually determine feature status. A script that sets this to enable to turn on the fcoe feature, then immediately reads this same object back expecting confirmation, would only ever see noOp -- it needs to poll cfcFeatureCtrlLastActionResult separately to confirm the enable actually succeeded.