How to recover pacemaker cluster where all controllers fencing

This document (7023984) is provided subject to the disclaimer at the end of this document.

Environment


SUSE OpenStack Cloud 8

Situation

Cluster of controllers failing to start due to fact that each controller get fenced

Resolution

There are depending on the implementation of STONITH several ways.

If IPMI based STONITH, you can switch of ipmi communication.

Another approach is to boot each node in rescue mode e.g. adding "systemd.unit=rescue.target" on the kernel boot prompt or grub menu entry (equivalent is also emergency, rescue, single).

Within the rescue system disable stonith:
crm configure property stonith-enabled=false 


Cause


Additional Information


Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023984
  • Creation Date: 01-Jul-2019
  • Modified Date:03-Mar-2020
    • SUSE Open Stack Cloud

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