Appendix E Falcon Lead Lag
E-49
SlaveState states
Recovering A slave that is recovering is checked once per second.
If the slave has recovered the SlaveState table is changed to Available.
If the slave has not yet recovered when its recovery timer reaches the RecoveryTimeLimit then:
If the slave is not enabled for the LL master its SlaveState table is Set to Unknown (which logically removes it from
the slave table). Otherwise the RecoveryLimitTimer is cleared which starts a new recovery measurement and the
slave remains in recovery (indefinitely).
Available A slave in the Available state remains that way until the Stager moves it into the AddStage state or the
ProcessSlaveStatus action moves it to some other state.
AddStage A slave in the AddStage state remains that way until the ProcessSlaveStatus moves it to Firing or some
other state, or the Stager times out and moves it into the Recovering state if it fails to fire.
SuspendStage A slave in the SuspendStage state remains that way until the ProcessSlaveStatus moves it to some
other state, or the Stager times out and moves it into either the Firing or the Available state.
Firing A slave in the Firing state remains that way until the ProcessSlaveStatus moves it to some other state, or the
Stager drops the stage and moves it into the Available state.
OnLeave A slave in the OnLeave state remains that way until the ProcessSlaveStatus moves it to some other state.
Disabled A slave in the Disabled state remains that way until the ProcessSlaveStatus moves it to Recovering.
Demand and Priority
Different sources of demand can cause the LL master to operate in different ways. These sources have a priority
relationship.
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