How does the `IS_ERS` attribute work on a SAP NetWeaver cluster with Standalone Enqueue Server (ENSA1 and ENSA2)?

Solution Verified - Updated -

Issue

  • We would like to know the purpose of configuring the attribute IS_ERS when creating the SAPInstance resource for ERS in a Pacemaker cluster
  • Is it mandatory to configure the attribute IS_ERS=true for the ERS SAPInstance resource in ENSA1 and/or ENSA2 deployments?
  • What is the purpose of runs_ers_SID cluster node attribute in cluster running SAPInstance resource?

Environment

Red Hat Enterprise Linux 7 and 8 with High-Availability Add-on
SAP NetWeaver with Standalone Enqueue Server (ENSA1 and ENSA2)

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