Hi Ezpeer: Please see comments in line. From: Ezpeer Chen [mailto:ezpeerchen@gmail.com] Sent: Monday, July 8, 2019 2:22 PM To: starlingx-discuss@lists.starlingx.io Subject: [Starlingx-discuss] Question about All-in-one Duplex on STX R1.0 Dear all, Install all-in-one Duplex: https://docs.starlingx.io/deployment_guides/current/duplex.html 1. What's the requirement environment of controller-1 ? [Austin] same as controller-0 2. How does the controller-0 could find the controller-1? [Austin] controller-1 should be in same mgmt network and in OAM network 3. Do the controller-0 and the controller-1 should be the same HW Spec. ? [Austin] for duplex, it is better to be same. 4. From the document, it shows that In Controller-1 console you will see: Waiting for this node to be configured. Please configure the personality for this node from the controller node in order to proceed. Does the controller-1 need a USB in a bootable USB slot or anything else? [Austin] No. controller-1 will be installed via pxe install, Please check : https://docs.starlingx.io/deployment_guides/current/duplex.html#updating-con... and https://docs.starlingx.io/deployment_guides/current/duplex.html#id8 Thanks. BR Austin Sun. Regards