How to patch a SAP Application Pacemaker Cluster

This document (000020268) is provided subject to the disclaimer at the end of this document.

Environment

SLES for SAP Applications 12
SLES for SAP Applications 15

Situation

If there is a need to update the nodes of a cluster one can do a rolling update.
 

Resolution

On one node issue

    crm cluster stop
    
this will failover all relevant resources to the other node.

After this is done, any patching can proceed without consideration for SAP nor the Cluster on the node that got the cluster stopped.

Once the patching is done, maybe even a reboot, on the patched node the cluster is started again with

   crm cluster start
   
This will make the node available again for SAP Applications.

Care should be taken, that any SAP Application started correctly and is working properly. Especially any SAP Hana Secondary should be in

   Sync OK
   
status. It is necessary to check that the failover is available again.

After this the same process is repeated with the other node.

   crm cluster stop
   
patching, maybe reboot and then with

   crm cluster start

reintroduced into the cluster.

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:000020268
  • Creation Date: 09-Jun-2021
  • Modified Date:09-Jun-2021
    • SUSE Linux Enterprise Server for SAP Applications

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