Chapter 5. New features and enhancements 5.1. Red Hat Enterprise Linux 9.0 for SAP Solutions RHEL System Roles for SAP Ansible Core support for the RHEL System Roles As of the RHEL 9 GA release, Ansible Core is provided, with a limited scope of support, to enable RHEL supported automation use cases. Ansible Core replaces Ansible Engine which was provided on versions of RHEL in a separate repository. Ansible Core is available in the AppStream repository for RHEL. For more details on the supported use cases, see Scope of support for the Ansible Core package included in the RHEL 9 AppStream . If you require Ansible Engine support, or otherwise need support for non-RHEL automation use cases, create a Case at Red Hat Support. Full Support for role sap_hana_install With the role sap_hana_install , installing SAP HANA standalone or scale-out is simple and reliable and requires no interactive user input, and there is no need to learn how to configure the hdblcm configfile for doing an unattended installation. This role had initially been shipped in Technology Preview support and is now fully supported. SELinux file labeling for SAP The roles sap_general_preconfigure and sap_hana_preconfigure now support setting SELinux file labels for running SAP HANA or SAP ABAP application instances on RHEL systems with SELinux in enforcing or permissive mode. SAP HANA Pacemaker System roles have been enhanced to allow the setup of two-node SAP HANA pacemaker clusters. For Red Hat Enterprise Linux 9.0, it is provided as Technology Preview. For information on Red Hat's scope of support for Technology Preview features, see Technology Preview Features Support Scope . HA solutions for SAP SAP HANA Multitarget System Replication SAP HANA Multitarget System Replication is now supported in combination with the HA solution for managing SAP HANA Scale-Up System Replication. See Configuring SAP HANA Scale-Up Multitarget System Replication for disaster recovery for more information. resource-agents-sap-hana The following enhancements have been made in version 0.162.1: A new parameter, HANA_CALL_TIMEOUT`has been added. It fixes the issue of hard-coded timeouts for most `HANA_CALL commands. Provision of systemd support. Start and stop resource operation timeouts can now be used for increased WaitforStarted/WaitforStopped timeouts. The minimum timeout remains 3600s. The logging has been improved. The error handling has been improved. 5.2. Red Hat Enterprise Linux 9.3 for SAP Solutions HA solutions for SAP When using the HA solutions for managing HANA Multitarget System Replication, it is also possible to set up a separate inactive cluster for managing the HANA instances at the DR site, which can be activated manually in the event of the primary cluster becoming unavailable. For more details, please refer to Configuring SAP HANA Scale-Up Multitarget System Replication for disaster recovery . RHEL HA solutions for SAP now support managing SAP HANA Multitarget System Replication for both HANA Scale-Up and HANA Scale-Out environments, allowing for automated failover with 3 and more replicates. For more details, please refer to Multitarget System Replication . 5.3. Red Hat Enterprise Linux 9.4 for SAP Solutions HA solutions for SAP Enabling the SAP HANA srServiceStateChanged() hook for hdbindexserver process failure action Starting with version 0.162.3, the resource-agents-sap-hana package provides a new SAP HANA hook script for dealing with situations where the HANA hdbindexserver process has crashed or is hanging: The ChkSrv.py hook script uses the SAP HANA srServiceStateChanged() hook to process HANA events and allow the HA cluster to react to dying or hanging SAP HANA hdbindexserver processes. The CHkSrv.py hook script provides the option to choose the reaction to a crashed or hanging HANA hdbindexerver process: either stop or kill the HANA DB, or only log events for monitoring purposes. All activity related to the srServiceStateChanged() HANA hook is logged in a dedicated SAP HANA tracefile. The minimum required SAP HANA version to enable this feature is SAP HANA 2.0 SPS4. For more details, refer to Enabling the SAP HANA srServiceStateChanged() hook for hdbindexserver process failure action (optional) . In addition to the new feature, version 0.162.3 (and later) of the resource-agents-sap-hana package also provides the following enhancements: Avoids explicit and implicit usage of the /tmp file system to keep the SAPHanaSR resource agents working even in situations where the /tmp file system is full. If the SAPHanaSR.py hook script successfully reports a srConnectionChanged() event to the cluster, a still existing fallback state file is removed to prevent an override of an already reported SR state. Improves supportability as it provides the current process ID of the resource agent, logged in resource agent output, and HANA tracefiles. Improves the logging of status and actions that the resource agents perform. RHEL System Roles for SAP The following enhancements have been made for the roles given below: collection : Ensures Ansible 2.16.1, 2.15.8, 2.14.12 (cve-2023-5764) compatibility. collection : Minimum Ansible version is now 2.14. preconfigure : Includes SLES related code. Configuring SLES managed nodes is nevertheless unsupported by Red Hat. sap_hana_preconfigure : Implements SAP HANA requirements for RHEL 8.8 and RHEL 9.2 and is less restrictive with RHEL versions that are not yet supported for SAP HANA. sap_ha_pacemaker_cluster : Improves VIP resource and constraint setup per platform. For more details refer to Red Hat Enterprise Linux System Roles for SAP . Security You can now learn about processes and practices for securing Red Hat Enterprise Linux systems against local and remote intrusion, exploitation, and malicious activity. These approaches and tools can create a more secure environment for running SAP HANA. For more details, refer to: Security hardening guide for SAP HANA Configuring fapolicyd to allow only SAP HANA executables Using SELinux for SAP HANA 5.4. Red Hat Enterprise Linux 9.5 for SAP Solutions HA solutions for SAP Adding SAP HANA indexserver crash restart handling, detecting SAP HANA indexserver failure in scale-out (in addition to scale-up) DBMS clusters, and automated switching over to the secondary SAP HANA node is now possible. For more information, refer to Additional hooks . Adding support for RHEL High Availability on Azure Government Cloud to enable RHEL HA to run SAP and other workloads is now possible. This allows you to use RHEL HA in an environment that meets the compliance and security standards mandated by the US government for sensitive data. For more information, refer to Support Policies for RHEL High Availability Clusters - Microsoft Azure Virtual Machines as Cluster Members . RHEL System Roles for SAP The following enhancement have been made for the role given below: sap_netweaver_preconfigure : Syncs with SAP note 3119751 v.13 for RHEL.

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