You might want to force a failover if, for example, you need to replace or upgrade the primary node. You can force failover from either the primary or the secondary node. A forced failover is not propagated or synchronized. To view the synchronization status after a forced failover, you can view the status of the node.
A forced failover fails in any of the following circumstances:
- You force failover on a standalone system.
- The secondary node is disabled.
- The secondary node is configured to remain secondary.
The NetScaler Gateway appliance displays a warning message if it detects a potential issue when you run the force failover command. The message includes the information that triggered the warning and requests confirmation before proceeding.