status

Displays status of the HA cluster.  

active_mode

Puts the Screen in active mode. 

passive_mode

Puts the Screen in passive mode. 

init_primary interface

Turns a standalone (non-HA) Screen into an HA primary Screen, thereby creating a new HA cluster containing one Screen. interface is the interface to be used for the HA heartbeat and synchronization. primaryIP is the IP address (on the HA network) of the primary machine in the cluster.

init_secondary interface primaryIP

Turns a standalone (non-HA) Screen into an HA secondary screen ready to join an existing HA cluster. interface is used for the HA heartbeat and synchronization, and primaryIP is the IP address (on the HA network) of the primary machine in the cluster.

add_secondary secondaryIP

Adds an initialized HA secondary Screen (see init_secondary above) into an existing HA cluster. This command is executed on the primary Screen in the HA cluster. secondaryIP is the IP address (on the HA network) of the secondary machine to be added.