SAP HANA System Replication Scale Up: Performance-Optimized
Before proceeding with the installation, please make sure of the following:
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There are two machines with SAP HANA installed.
Note that the machine you run the wizard on becomes the primary node in the cluster.
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There is a firewall configured using the SAP HANA Firewall module in Administrator Settings, and
HANA_HIGH_AVAILABILITY and HANA_SYSTEM_REPLICATION services are enabled on all relevant network interfaces.
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You have created one of the following:
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A key in the HANA Secure User Store (using the
hdbuserstore utility) on the primary HANA node.
If you are configuring a multi-tenant HANA installation (default for HANA versions 2.0 SPS01 and above), please make sure that the secure store key is properly configured for connecting to the SystemDB, i.e., specify port 3<SID>13 in the environment settings and SystemDB as the target database.
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An initial HANA backup (of the
SystemDB and all tenant databases, in an MDC setup) on the primary HANA node.
Please note that if you prefer to perform backup manually on HANA 2.0, you should also make sure that the SSFS keys are the same on both HANA nodes.
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For SUSE Linux Enterprise Server version 15 and later: please ensure that during the HA setup procedure the TCP port
8080 is open on the secondary node. After the HA setup is complete, please enable the cluster service in firewalld on both nodes.