If the active primary appliance is unresponsive or cannot be restored, and no passive primary appliance is deployed, it can be replaced by a secondary appliance from the same cluster.
Tip:
Trend Micro recommends deployment of a passive primary appliance for high availability. For details, see Adding a Passive Primary Appliance to the Cluster.
Important:
Submissions do not have a result if they were being analyzed on the active primary appliance when it becomes unresponsive.