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Chapter 3. Prerequisites
For the solution to work, the following requirements must be met.
All nodes must have the same:
- number of CPUs and RAM
- software configuration
- RHEL release (please note that at least RHEL 8.6 is required)
- firewall settings
- SAP HANA release (SAP HANA 2.0 SPS04 or later)
The pacemaker packages are only installed on the cluster nodes and must use the same version of resource-agents-sap-hana (0.162.1 or later).
To be able to support SAP HANA Multitarget System Replication, refer to Add SAP HANA Multitarget System Replication autoregister support. Also, set the following:
-
use
register_secondaries_on_takeover=true -
use
log_mode=normal
The initial setup is based on the installation guide, Automating SAP HANA Scale-Up System Replication using the RHEL HA Add-On.
The system replication configuration of all SAP HANA instances is based on SAP requirements. For more information, refer to the guidelines from SAP based on the SAP HANA Administration Guide .
