Help Center/ SAP Cloud/ Best Practices/ SAP S/4HANA (1809) HA Deployment Best Practice/ Resource Creation/ Configuring the Mappings Between IP Addresses and Hostnames/ SAP HANA ECS Configuration
Updated on 2023-05-29 GMT+08:00
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SAP HANA ECS Configuration

During the SAP HANA installation, installation programs use ECS names for communication. Therefore, you must configure the mappings between ECS names and IP addresses.

Procedure

  1. Log in to the active SAP HANA ECS hana001, edit the /etc/hosts file, and write the mappings between the names and IP addresses of all SAP HANA ECSs to the file.

    • If the mapping between 127.0.0.1 and the ECS name exists in the /etc/hosts file, delete it. For details, see What Should I Do If an SAP Application on an ECS Cannot Be Started?
    • The IP address mentioned in this section is the IP address of the system replication/heartbeat network plane.
    • When configuring the mapping between the private IP address of the active node and the hostname, add a virtual hostname after the hostname. The virtual hostname will be used during SAP S/4HANA installation.

  2. Log in to the standby SAP HANA ECS hana002, edit the /etc/hosts file, and write the mappings between the names and IP addresses of all SAP HANA ECSs to the file.