Hello Alexis, it's not essential...but it would be useful to use it as a template to study just in case of doubts...I've collected many info about ArubaOS-CX and, in particular, about setting up VSX so I'm pretty confident I shouldn't have any particular issue [*] (Aruba 8320 arrived today and next Monday we're going to start).
[*] apart - I'm asking myseld now - if I can reproduce the same SNMPv3 settings I standardized and used on all other ArubaOS-Switch devices we have in order for the new Aruba 8320 pair to be discoverded by our HPE IMC 7.3 E0605P04.