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  1. RHEL
  2. RHEL-7731

pcs does not prevent disabling ATB when it can break SBD

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    • pcs-0.10.17-5.el8
    • Major
    • sst_high_availability
    • ssg_filesystems_storage_and_HA
    • 13
    • 23
    • 2
    • QE ack
    • False
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    • Yes
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    • Bug Fix
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      .Disabling the `auto_tie_breaker` quorum option no longer allowed when SBD fencing requires it

      Previously, `pcs` allowed a user to disable the `auto_tie_breaker` quorum option even when a cluster configuration required this option for SBD fencing to work correctly. With this fix, `pcs` generates an error message when a user attempts to disable `auto_tie_breaker` on a system where SBD fencing requires that the `auto_tie_breaker` option be enabled.
      Show
      .Disabling the `auto_tie_breaker` quorum option no longer allowed when SBD fencing requires it Previously, `pcs` allowed a user to disable the `auto_tie_breaker` quorum option even when a cluster configuration required this option for SBD fencing to work correctly. With this fix, `pcs` generates an error message when a user attempts to disable `auto_tie_breaker` on a system where SBD fencing requires that the `auto_tie_breaker` option be enabled.
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      +++ This bug was initially created as a clone of Bug #2227230 +++

      Description of problem:
      When SBD with no disks is enabled in a cluster with even numerb of nodes, auto_tie_breaker must be enabled in orded for SBD to work correctly. Pcs should prevent disabling auto_tie_breaker in this case.

      Version-Release number of selected component (if applicable):
      pcs-0.10.17-1.el8

      How reproducible:
      always, easily

      Steps to Reproduce:
      1. create a cluster with two nodes
      2. enable SBD: 'pcs stonith sbd enable'
      3. try to disable ATB:

      Actual results:
      In step 2, pcs informs the user that ATB must be enabled. Yet, in step 3, pcs is fine with disabling ATB.

      Expected results:
      Pcs prevents disabling ATB in step 3.

            cluster-qe Cluster QE
            tojeline@redhat.com Tomas Jelinek
            Peter Romancik Peter Romancik
            Michal Mazourek Michal Mazourek
            Steven Levine Steven Levine
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              Created:
              Updated:
              Resolved: