completely my fault, though! I removed the fans when i was rearranging the rack, and only installed them back today. It was enough for it to overheat
Discussion
data should not be lost, since its on the ZFS pools with raid. But still a PITA to recover.
and... i only have a 16 GB memory card to boot from. Let's hope i can fit everything i need for the OS on this card...
Strange. Overheating just stresses the components until the CPU which gets the hottest shuts down the system, I don't think it can flip bits and curropt the filesystem
then, not my fault :-D even better :-D still, i'll have to spend the night recovering everything. Lesson learned: keep a backup of the SD card on all your important raspberry pis :(
Thanks for the wisdom, I just installed nextcloud and home assistant on my raspberry pi this week 😂
some tips for you:
1- make a copy of the sdcard after it's fully configured, so you can just replace it in case of an emergency. (i didn't, spent 4+ hours recovering)
2- You probably use external HDDs or something like that for data storage, right? Make them redundant. Use ZFS in mirror mode if you have only 2, or in raid mode with 3 or more. If you can't use ZFS for some reason, use snapraid to keep an in-place backup.
3- Do not take of the fans from your rack with the excuse that the new, more powerful fans will arrive tomorrow. Leave them on always. I just learned this lesson the hard way