What is the fast_stop option for a Filesystem resource in a Pacemaker cluster?

Solution Verified - Updated -

Issue

  • The fast_stop option is enabled by default for an ocf:heartbeat:Filesystem resource. What does it do?
  • Why did Pacemaker give up on unmounting a filesystem after about 6 seconds even though the stop operation timeout is much more than that?

Environment

  • Red Hat Enterprise Linux 6 (with the High Availability Add-on)
  • Red Hat Enterprise Linux 7 (with the High Availability Add-on)
  • Red Hat Enterprise Linux 8 (with the High Availability Add-on)
  • Red Hat Enterprise Linux 9 (with the High Availability Add-on)
  • Pacemaker

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