i ve been running a btc full node on rasp 4 and it crashed twice in 1year and half (sdcard failed)

after a few days of tought ( i was not sur if i wanted to install OS on a sdcard or on a hard drive) i ve decided to test the solution provided by @Turnspit_Dog

tmpfs /tmp tmpfs nosuid,nodev,size=100M 0 0 tmpfs /var/log tmpfs nosuid,nodev,nosuid,mode=0755,size=50M 0 0 tmpfs /var/log/nginx tmpfs nosuid,nodev,nosuid,mode=0755,size=20M 0 0 tmpfs /var/tmp tmpfs nosuid,nodev,size=10M 0 0 tmpfs /var/www/ tmpfs nosuid,nodev,mode=0755,size=10M 0 0

let s see how long it will last and thks again to @Turnspit_Dog