No you can't use a 220 and a 320 together in High-Availability. Not only are they too dissimilar, but the 220 license won't work on a 320 and vice-versa.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
No you can't use a 220 and a 320 together in High-Availability. Not only are they too dissimilar, but the 220 license won't work on a 320 and vice-versa.
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005