We have issues with our current solution wearing out SD cards, resulting in unstable devices after a period of operation. One initiative taken has been to re-write parts of our solution to rely more on RAM storage than disk storage.
Now, my question is: how would you monitor if this re-write has indeed had the intended effect (less SD card writing)? - put another way: how would you monitor how hard a current solution is to the SD card?
We have prometheus node-exporter installed on all devices and try to analyse some of that, but I’d be curious about the community’s take, and possibly more detailed guidance on what to look for in the prometheus data.