My node just restarted unexpectly, dont know why, its new motherboard and cpu.
What are steps to make, to ensure any storj data wasn’t lost in this situation?
or if so, how to recover it from some i dont know, memory dumps or other ways?
You can just start the node and have a look at the logs. The most common issue you’ll run into after a sudden shut down is corruption of the info.db. If you’re seeing any errors connected to the info.db you can try the fixes on this page.