![]() The upgrade command is run on the primary node, and it reboots.The upgrade command is run on the member nodes, the systems are rebooted, and the member nodes send the primary node an acknowledgment that upgrade has been completed.The primary node notifies the member nodes of the upgrade, and it takes their user traffic during the upgrade. ![]() The primary node pushes the firmware image to the member nodes.The following process occurs when you perform the HA upgrade procedure: You can upgrade firmware on all nodes in a cluster from the primary node. Chapter 13: High Availability Deployments > Updating firmware for an HA cluster Updating firmware for an HA cluster
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