It is very likely that the current DQP on the NetApp Support Site has already purged the very old (EOS) drives. You would almost need to find an "old" DQP drive from 3-4 years ago help with that specific drive string (you can see if the file includes an entry for it, now). Your best bet would be get the node to 7.3.7Px. You're not even in a supported configuration with the HA nodes being on completely different ONTAP versions.
The FAS 2020 is end of Hardware support since 2017 and was the last platform that needed ONTAP 7G. Since your other controller is on 7.3 you will find the software most likely in /etc/software on that system. That would be the easiest way to get to it. you can also access that via http(s)://filer/na_admin.