VMware Smart Assurance Optical Transport Manager (OTM) is not supported for failover.
OTM communicates with the VMware Smart Assurance Notification Exchange (Rabbit MQ) which is one of the components of the SAM server with Notification Cache Publishing Enabled.
If the Rabbit MQ service (smarts-rabbitmq) goes down, the Failover Manager considers the Active SAM to be down and performs a failover. Also, the AMQP_Consumer ConnectionError notification appears in the VMware M&R UI.
If you receive the AMQP_Consumer ConnectionError notification, restart the Rabbit MQ service (smarts-rabbitmq). Then, OTM will continue to process events.