I'm experiencing the following problem:
/dev/sda1 is getting used 90% or 100% randomly. It's normally on 47% and 50%, but I don't understand why it sometimes jumps up to 100%.
Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 796M 692K 795M 1% /run /dev/sda1 29G 14G 16G 48% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sda15 105M 3.6M 101M 4% /boot/efi tmpfs 796M 0 796M 0% /run/user/1000
This happens at least once per weekend. My solution is to reboot the OS from command line, by typing
reboot, but that is not something healthy for the server.
What could it be the reason?