DR Failover

The VOSS-4-UC system makes use of database replication facilities during normal operation. During a failover, if 50% or more of the service resources are lost, the system will no longer function without manual intervention.

In this case, the following high level process should be followed.

1. Display the current cluster topology using cluster status.
2. Remove the dead nodes using cluster del <ip>. Power off the deleted node, or disable its Network Interface Card.
3. Once the cluster topology is adjusted, the cluster must be reprovisioned using cluster provision.
4. Afterward, the cluster status can be rechecked with cluster status.

See also: Using the screen command.

Refer to the appropriate detailed DR scenarios for the complete sequence of DR steps.