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3741300 - SAP HANA Scale-out HA/DR – Worker Failure & Replication Behavior

Symptom

In an SAP HANA Scale-out environment with High Availability (HA) and Disaster Recovery (DR) — specifically a 2+1 setup (2 Worker nodes, 1 Stand-by node) in both Primary (Group 1) and Secondary (Group 2) sites — there are questions regarding:

  • How the system behaves during a single worker failure.
  • The impact on HANA System Replication (HSR).
  • The necessity of a cluster manager (e.g., Pacemaker) for Disaster Recovery.


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Environment

  • SAP HANA Scale-out
  • Setup: Group 1 (Primary) and Group 2 (Secondary)
  • Configuration: 2 Worker Nodes + 1 Stand-by Node per Group
  • HSR: Active System Replication between sites

Product

SAP HANA, platform edition 2.0

Keywords

SAP HANA; Scale-out; High Availability; Disaster Recovery; HSR; Stand-by Node; Worker Failure; Pacemaker; Takeover; STONITH. , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , How To

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