@douglaspitman If your buying two hubs, don’t use them both. As long as you have some repeaters, this is useless. I don’t think one will take over the other. Instead, keep the backup hub safely. If your main hub ever breaks, you can use its backup (keep backups on a separate device, see this thread
To restore the other hub, just restores the latest file. The zigbee and z wave devices won’t pair but their is a way to re-pair the,. Any preferences should stay because to hubitat it will be like the device is coming back online
Also, the alexa skill can only cope with one hub at a time, and you will have to use an app that shares the hubs devices
