1.4. Monitoring ephemeral storage

You can use /bin/df as a tool to monitor ephemeral storage usage on the volume where ephemeral container data is located, which is /var/lib/kubelet and /var/lib/containers. The available space for only /var/lib/kubelet is shown when you use the df command if /var/lib/containers is placed on a separate disk by the cluster administrator.

To show the human-readable values of used and available space in /var/lib, enter the following command:

df -h /var/lib

$ df -h /var/lib

The output shows the ephemeral storage usage in /var/lib:

Filesystem  Size  Used Avail Use% Mounted on
/dev/sda1    69G   32G   34G  49% /

Filesystem  Size  Used Avail Use% Mounted on
/dev/sda1    69G   32G   34G  49% /