Hi Borgsquirrel,
sure this is possible. You would create different radius servers within your config like this:
radius-server host 10.104.104.41 key "aruba123"
Do this for all your radius servers.
Afterward, you should group them together, at least whose wit the same function like this:
aaa server-group radius "CPPM" host 10.104.104.41
you can now use them in your config for all kinds of configurations like dot1x:
aaa authentication port-access eap-radius server-group CPPM
and for cli access like this:
aaa authentication ssh login radius server-group CPPM1
Doing so, you can configure a different radius server group for each access method the switch offers.
hope this helps.
BR
Florian