Historically, my company has created cold standby versions of our AGS infrastructure by cloning the virtual machine (thereby creating Machine_2) and then keeping the data/services/configuration of Machine_2 synced.
Since Common problems and solutions—Portal for ArcGIS (10.8) | Documentation for ArcGIS Enterprise says that machines cannot be renamed, that approach will no longer work. Migrate to a new machine in ArcGIS Enterprise using the WebGIS DR tool recommends using the WebGIS DR tool instead.
Is there any way to avoid having to build an AGS/Portal/Data Store server from scratch prior to running the WebGIS DR tool?