Worth noting that the backup'ed channel.db shouldn't be used to come back online, but just to use chantools to do the SCB with your channel.db instead of your SCB file.

Coming back online with an outdated channel.db imposes great risk of losing funds via penalty transactions.

Hakuna

lightning

Test backup

ChrisS

Yes, this is standard procedure for LND. It prevents accidental restore in another device and that could trigger a penalty.

Just make that backup every time you open and close a channel (not after each payment).
Optional, if you know what are you doing you can save the channel.db and wallet.db, but depending on how you installed that LND instance it will require also other files where was encrypted the password to open the wallet.

Just the SCB file + seed is enough and safe.