i have HA running on my little Debian based Server and it runs very well!
Beside i also have a PI3 running doing some MQTT things.
I want to have HA installation running on the PI too, but it must be 1:1 copy of the running system.
Goal is: if the Server dies or HDD gets defected or PSU gets bad , the PI should overtake and keep HA running.
Must be a kind of forwarding from PI to Server .
But if the config files are stored at another safe place, can PI & Server get same acces to files?
Or is a realtime copy of the files better?
Is there a possibility to do something like this?
Any Ideas to this?
Rsync local copy to pi. If you access on same server or even at remote location it is risk that the file source is failure cause. I would look to avoid that.
If you run nginx as reverse proxy you can setup failovers in nginx. I believe you can set number of attempt to connect before fail.
Things like Zwave cannot failover to another HA server due to controller. Everything else like network devices, WiFi switches and over things may allow multiple and maybe concurrent connections. If you use zwavejs on seperate server or external hub Zwave can work
An attention point when having 2 identical HA running active-active is automations: They will be triggered on both instances separately, so that has to be kept in mind when creating them.