Disaster recovery - SAP NetWeaver on Amazon
Perform a DNS change
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Disaster recovery

See Disaster recovery deployment to learn about disaster recovery for your SAP ASE database.

Perform a DNS change

In case of manual failover, you may install SAP application servers using a virtual hostname and perform a DNS change to direct the SAP application servers to the new primary database server. For a DNS resolution in Amazon, you can use any of the following options.

  • Amazon Route 53 enables you to create a private hosted zone for your environment and an A record for the virtual hostname used for SAP ASE database. Initially, this A record is mapped to the IP address of the primary SAP ASE database instance.

  • You can maintain your own DNS server on-premise or on your Amazon EC2 instances. You can create an A record there for your virtual hostname used for SAP ASE database. Initially, this A record is mapped to the IP address of the primary SAP ASE database instance.

  • With the Amazon Directory Service, you can create an A record for the virtual hostname used for SAP ASE database.

With any of the previously mentioned options, you can change the A record to a private IP address of the primary database instance in case of a failover. This DNS change can also be automated using Amazon services and scripts.