ha Sub-Command

ssadm ha performs operations on a Screen in a high availability (HA) cluster.

Usage:

ssadm ha function parameters...

Functions:

status -- Display status of the HA cluster.

active_mode -- Put the Screen in active mode.

passive_mode -- Put the Screen in passive mode.

init_primary interface -- Turn 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 -- Turn a standalone (non-HA) Screen into an HA secondary screen ready to join an existing HA cluster. Where 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 -- Add 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. Where secondaryIP is the IP address (on the HA network) of the secondary machine to be added.