Expected output results for HAGetFailoverConfig.

This document (000019613) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server for SAP Applications 12

Situation

Following the Best Practices Guide and performing tests to make sure the sap_suse_cluster_connector is integrated properly, there are some test that you run and it's possible that the expected output may be different or blank.

For example:

# sapcontrol -nr 01 -function HAGetFailoverConfig

23.04.2020 15:29:48
HAGetFailoverConfig
OK
HAActive: FALSE
HAProductVersion: 
HASAPInterfaceVersion: 
HADocumentation: 
HAActiveNode:

Expected Result:

# sapcontrol -nr 01 -function HAGetFailoverConfig

23.04.2020 15:28:06
HAGetFailoverConfig
OK
HAActive: TRUE
HAProductVersion: SUSE Linux Enterprise Server for SAP Applications 12 SP4
HASAPInterfaceVersion: SUSE Linux Enterprise Server for SAP Applications 12 SP4 (sap_suse_cluster_connector 3.1.0)
HADocumentation: https://www.suse.com/products/sles-for-sap/resource-library/sap-best-practices/
HAActiveNode: clusterAn2
HANodes: clusterAn2, clusterAn1

Resolution

There are 3 possible causes for this.
1. If the cluster is in maintenance-mode (cib-bootstrap option "maintenance-mode=true", then the results will not show here as it considers HAActive is false and doesn't continue.
Please set maintenance-mode to false and perform tests again.

# crm configure property maintenance-mode=false

2. If your hostnames (virtual or nodes) have a "-" in the name, it's possible the sap_suse_cluster_connector is not parsing them properly.
This has been resolved a maintenance package >= sap-suse-cluster-connector-3.1.1-11.1

3. The <sidadm> user was not added to the haclient group.
If my <sidadm> user was nw1adm, I would add it on each node in the cluster with the following command.

# usermod -aG haclient nw1adm

Cause

Cluster was in maintenance mode or hostnames had a "-" in them and the sap_suse_cluster_connector is not parsing the names properly.

Additional Information

Expected results for HACheckConfig

# sapcontrol -nr 01 -function HACheckConfig

23.04.2020 15:35:28
HACheckConfig
OK
state, category, description, comment
SUCCESS, SAP CONFIGURATION, Redundant ABAP instance configuration, 0 ABAP instances detected
SUCCESS, SAP CONFIGURATION, Redundant Java instance configuration, 0 Java instances detected
SUCCESS, SAP CONFIGURATION, Enqueue separation, All Enqueue server separated from application server
SUCCESS, SAP CONFIGURATION, MessageServer separation, All MessageServer separated from application server
SUCCESS, SAP STATE, SCS instance running, SCS instance status ok
SUCCESS, SAP CONFIGURATION, SAPInstance RA sufficient version (sapnw1ascs_NW1_01), SAPInstance includes is-ers patch
SUCCESS, SAP CONFIGURATION, Enqueue replication (sapnw1ascs_NW1_01), Enqueue replication enabled
SUCCESS, SAP STATE, Enqueue replication state (sapnw1ascs_NW1_01), Enqueue replication active
SUCCESS, SAP CONFIGURATION, Enqueue replication HA polling (sapnw1ers_NW1_11), HA polling interface configured

Expected results for HACheckFailoverConfig

# sapcontrol -nr 01 -function HACheckFailoverConfig

23.04.2020 15:36:18
HACheckFailoverConfig
OK
state, category, description, comment
SUCCESS, SAP CONFIGURATION, SAPInstance RA sufficient version, SAPInstance includes is-ers patch

Reference Documentation:

Best Practices for SAP:
https://documentation.suse.com/sbp/sap/

SAP S/4 HANA - Enqueue Replication 2 High Availability Cluster With Simple Mount - Setup Guide:
https://documentation.suse.com/sbp/sap/html/SAP-S4HA10-setupguide-simplemount-sle15/index.html

Manual page sap_suse_cluster_connector(8)
(man 8 sap_suse_cluster_connector)

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:000019613
Creation Date: 24-Apr-2020
Modified Date:02-Dec-2022
- SUSE Linux Enterprise High Availability Extension
- SUSE Linux Enterprise Server for SAP Applications

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