NDFC upgrade / deploy part 2 - sizing and compatibility

At the time we were planning, we decided to use ND 3.2.1i (which comes with NDFC 12.2.2).  That would work with all our existing linecard, switches and firmware.  I don't need to worry about existing firmware 8.4(2e) was not supported.  Please use links below for compatibility check.  

For software / hardware compatibility, pls check NDFC Software and Hardware Compatibility Matrix.

To confirm the NDFC and ND compatibility, pls check Cisco Nexus Dashboard and Services Compatibility Matrix    

Next is sizing.  For sizing, pls check Cisco Nexus Dashboard Capacity Planning.  We decide to use 1 App node config since it is a small environment.  (Note: if one node config is decided, it will not support adding any more node in the future).  App OVA requires 16 vCPU and 64GB memory.  

Other requirement: pls go through documents below

Cisco Nexus Dashboard and Services Deployment and Upgrade Guide, Release 3.2.x - Prerequisites: Nexus Dashboard [Cisco Nexus Dashboard] - Cisco