Craig Porteous show how to cluster the Power BI Data Gateway to allow for disaster recovery:
I love PowerShell and I even wrote a module with functions to query Power BI metadata but there should always be another way to get this vital information.
The documentation I mentioned earlier points you to a PowerShell module file included in the November update. You can load this file & use the commands they provide to get information about your Gateway cluster and its members or make changes to clusters.
If it’s important enough to use, it’s important enough to include in a disaster recovery plan.