With OverlayFS docker storage driver, filesystem space usage cannot be accounted

Solution In Progress - Updated -

Issue

  • When using OverlayFS for docker container/image storage we seem be using a lot of space that cannot be accounted for.
  • How OverlayFS storage driver for docker uses filesystem ?

Environment

  • Red Hat Enterprise Linux 7
  • Docker engine
  • OverlayFS storage driver

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