Perform the upgrade to Enterprise Server on Machine A by Upgrading Enterprise Server Runtime Binaries and Upgrading Configuration, Deployed Applications, and Certificate Databases.
Install Enterprise Server on Machine B without the DAS but with the Node Agent feature.
Machine A is the primary machine. It runs the DAS. Machine B is a secondary machine, which is not running the DAS. Machine B runs remote node agents that are configured to communicate with Machine A.
On Machine A, start each node agent using the start-node-agent command with the --syncinstances option. This option resynchronizes all associated instances. Example: asadmin start-node-agent --user admin --syncinstances nodeagent1
On Machine B, start each node agent using the start-node-agent command with the --syncinstances option. This option resynchronizes all associated instances