How can I configure fence_lpar in a RHEL High Availability cluster using Identity file (private key) for SSH

Solution In Progress - Updated -

Issue

  • We need to configure secure fencing in our cluster that runs on IBM POWER-based LPARs with an HMC
  • How to secure the authentication for hmc user in fencing_lpar method?
  • Is it possible to use ssh key instead of password for HMC user in fencing_lpar?
  • When fence_lpar request hmc to verify status of server how it does it? Is the request encrypted?

Environment

  • Red Hat Enterprise Linux (RHEL) 7 or 8 with High Availability or Resilient Storage Add-On
  • IBM POWER 8 or 9 System

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