Sometimes my hdd on desktop PC starts work like crazy, then, in a short time all system starts to freeze, cursor barely moving, and then completely freezes, but hdd keep working non-stop.
I have no issues to install complicated software just to make sure it will catch it somehow.
Thoose freezes are very random and i am not sure if it's attack or some process, but they happening once ~ 1.5 day.
I use linux mint 17.1 with KDE.
I tryed to use prepared CTRL+ALT+F1 (system terminal) and run iostat there, then wait for freeze to happen. But when it happening system dont want to switch to that terminal.
So question is, how i can catch such a hdd killer? maybe such soft could drop io stats to some google drive, i dont know. Is there a way to prevent single process from completely freezing io?