• Launch
    • When terminated no new instances can be launched
    • AlarmNotification, AZRebalance, ScheduledActions would not take effect
    • ReplaceUnhealthy terminates the instances but no instances would get launched
    • InstanceRefresh would not refresh instances
  • terminate
    • No scale in AlarmNotification, ScheduledActions
    • AZRebalance would grow upto 10 percent, as old instance would not get terminated
    • InstanceRefresh would not refresh instances

ReplaceUnhealthy process calls Terminate first and then Launch. suspending one of them will not have effect on other.