Linux - No space left on device, yet plenty of free space
My little server ran into an issue, and started reporting the error:
No space left on device
No worries, lest figure out which disk has full and clean up…
Using the df command with the -h (for human-readable output) it should be easy to find the issue:
root@server:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 483M 0 483M 0% /dev
tmpfs 100M 3.1M 97M 4% /run
/dev/vda 20G 9.3G 9.4G 50% /
tmpfs 500M 0 500M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 500M 0 500M 0% /sys/fs/cgroup
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 100M 0 100M 0% /run/user/1000Strange. Notice who the /dev/vda is 50% fillled and all other disk devices seems to be finde too. Well after a little digging, thinking and googling, it turns out device space consists of two things - space (for data) on the device and iNodes (the stuff used to mange the space - where the data go - simplified).