Clone z-wave controller

[fabnavigator]

Hi, I was wondering if there is a way to save what is on a z-stick and then restore it to another identical z-stick? It seems that if the controller ever failed that it would be a mess to get a new one up and working.

[marcus-j-davies]

Hey @fabnavigator - yes.

Use the NVM Backup option, in transceiver settings.
Also, just in case it causes issues, I would make sure they are both on the same FW.

The NVM represents the layout of the land across the network, and contains the identifiable ID used by nodes, to find their home network

[fabnavigator]

Thank you @marcus-j-davies. I looked under the Other Actions menu, but my brain didn't think that Transceiver Settings was interesting enough to click on. lol.

[marcus-j-davies]

No worries.

If you backup the NVM + Export the Name/Location map, you have a full backup of your network.
if you backup the zwavejs-cache folder also, its a full network snapshot - that can be restored to on another system (just don't have them online at the same time = 💥

NVM + Name/Location Map + zwavejs-cache = Full snapshot

[fabnavigator]

Got it. But if I just want to swap out the z-stick I just need to restore the NVM backup. Right?

[marcus-j-davies]

Correct!!
To change over sticks (better to be identical - FW also), then only the NVM needs to be restored to the new stick

But If you ever backup the cache folder anyway (i.e to move it all over to a new Pi lets say) - shutdown Node RED first, the cache folder uses lock files, to guard against data corruption.

The cache folder, is the Drivers "knowledge base" for the network.

• Current cached data Values (for each value in each CC)
• Interview records
• etc etc

The NVM doesn't store this data - as it's considered application data.
but for the same system with a new stick taking the place of another - an NVM backup/restore is enough