Promoting EFT Stand-Alone to Cluster Node

You can "promote" an EFT stand-alone server to a new cluster node. Refer to Globalscape Knowledgebase article #11542, Promote Stand-alone EFT to HA node for details of promoting a stand-alone server to a node in a cluster configuration.

You cannot promote a stand-alone server to an existing cluster. In that case, you would have to reinstall EFT on the stand-alone box as a active-active server, using instructions in Upgrade HA Nodes with Zero Downtime, and then point the new active-active server to the existing cluster configuration path.