NSX-T 3.1 offers two technical solutions for Multi-Locations On-Prem Data Centers:
This NSX-T 3.1 Multi-Location Design Guide offers guidance and best practices for Network & Security services in your On-Prem locations.
Note: This document may be updated in the future so always check you have the latest version. This version is 1.4 done on 01/11/2021.
questions: "deactivate cluster" could be supported in 2.x? this will be a check box or something in the future, meaning make it easy, os could be invoked thru API call?
Yes "deactivate cluster" is also supported in NSX-T 2.x releases.