Upgrading Firmware on Appliances in a Cluster

If you have multiple Deep Discovery Analyzer appliances deployed and configured to form a cluster, follow the procedure for the cluster configuration to upgrade the Deep Discovery Analyzer appliances.

Firmware upgrade procedures for appliances in a cluster

Cluster Configuration	Tasks
High availability cluster	Detach the passive primary appliance. Individually upgrade both the active primary appliance and the passive primary appliance. For more information, see Upgrading Firmware on an Appliance. Add the passive primary appliance to the cluster again.
Load-balancing cluster	Individually upgrade all Deep Discovery Analyzer appliances.
High availability cluster with load balancing	Detach the passive primary appliance. Individually upgrade both the active primary appliance and the passive primary appliance. For more information, see Upgrading Firmware on an Appliance. Add the passive primary appliance to the cluster again. Individually upgrade all secondary appliances. For more information, see Upgrading Firmware on an Appliance.