This object records why the last control-module switchover happened, distinguishing a user-initiated cold switchover, a failure-triggered cold failover, a user-initiated hot switchover, or a failure-triggered hot failover, exactly as the description's combination table lays out. After any switchover, this is the first thing to check to tell a planned maintenance event apart from an unplanned failure, which determines whether the event needs a root-cause investigation or was simply expected. For example, finding hotFailOver(4) recorded overnight with no corresponding maintenance ticket open is a clear signal the active control module crashed unexpectedly rather than being switched over deliberately.