Adding one or more new workers

1. From the FortiController GUI go to Load Balance > Config, edit the membership list and add the slot or slots that you will install the new workers in to the members list.

2. You can also use the following FortiController CLI command (for example, to add workers to slots 8 and 9):

   config load-balance settings

   config slots

   edit 8

   next

   edit 9

   end

3. Insert the new workers into their slots.

4. Connect to each worker’s CLI and enter the following command:

   config system elbc

   set mode forticontroller

   end

   The worker restarts in load balance mode and joins the cluster.

5. To verify that a worker has joined the cluster, from the FortiController GUI go to Load Balance > Status and verify that the worker appears in the correct chassis slot.