When to use "maintenance-mode" in RHEL High Availability Add-on for pacemaker based cluster?

Solution Verified - Updated -

Issue

  • Need to know recommended use of maintenance-mode in RHEL High Availability Add-on cluster in RHEL 7, 8 , 9.
  • Can I use maintenance-mode=true while performing patching ?
  • Can I set cluster to maintenance-mode while patching SAP Hana Environments?

Environment

  • Red Hat Enterprise Linux (RHEL) 6, 7, 8 or 9 with the High Availability Add -On
  • Pacemaker

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