Grafana showing NULL for

  • What Grafana version and what operating system are you using?

  • What are you trying to achieve?

    display number on y-axis instead of % used.

  • How are you trying to achieve it?

tried free space, but showing null

  • What happened?
    showing NULL

  • What did you expect to happen?
    show free space on y-axis

  • Can you copy/paste the configuration(s) that you are having problems with?

  • Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.

  • Did you follow any online instructions? If so, what is the URL?