How SAP HANA System Replication Protects Your Data

  • by Jonathan Haun, Director, Data and Analytics, Protiviti
  • September 23, 2015
When organizations implement SAP HANA, they need to devise a strategy to protect the data that the system manages in memory. Depending on your SAP HANA use case, failure to protect this data can lead to significant monetary or productivity losses. One way to protect the in-memory data is through the implementation of SAP HANA System Replication. SAP HANA System Replication is a solution provided by SAP that works with all certified SAP HANA appliance models. It also works with Tailored Datacenter Integration (TDI) configurations if you build your own system using TDI rules.
Learning Objectives

Reading this article, you will learn:

  • How to configure SAP HANA System Replication using SAP HANA studio or the Command Line Interface (CLI)
  • How to use SAP HANA studio and the CLI to manage the replication takeover and failback process
  • The different replication options and how they impact the reliability of data in the target system
Key Concept

SAP HANA System Replication works with all SAP HANA hardware appliances, regardless of the hardware vendor or hardware configuration. It can also provide solutions for high availability (HA) and disaster recovery (DR). You can manage SAP HANA System Replication using the operating system command line or SAP HANA studio.

SAP HANA is capable of managing data for applications that facilitate both Online Transaction Processing (OLTP) and Online Analytic Processing (OLAP). Most organizations use OLTP-oriented systems to help them manage, automate, and organize business processes. These digital workflows often streamline revenue-producing operations. Because these systems typically help organizations directly generate revenue, it is often critical that they maintain high availability (HA). In the event of a disaster that makes the OLTP system’s services no longer maintainable, a disaster recovery (DR) plan should also be available.

OLAP systems can also be important to the daily, monthly, and annual processes within an organization. These systems often indirectly help to bolster revenue by giving organizations actionable insight into budgets, plans, sales activities, and operations. Regardless of how SAP HANA is used by an organization, most organizations will find a need to provide both HA and DR solutions.

One such solution is SAP HANA System Replication. It is capable of providing both HA and DR. It provides HA by replicating data from an active server to a standby server. Out of the box, administrators can manually swap operations from the active server to the standby server. This can help protect the SAP HANA system from a potential hardware failure. It can also help organizations perform maintenance without excessive downtime. Depending on the type of replication that is chosen, no data is lost when operations are switched from the active server to the standby server. Because the data is copied to another independent system, even one hosted in a separate data center, it can also be considered a DR solution.

Jonathan Haun

Jonathan Haun, director of data and analytics at Protiviti, has more than 15 years of information technology experience and has served as a manager, developer, and administrator covering a diverse set of technologies. Over the past 10 years, he has served as a full-time SAP BusinessObjects, SAP HANA, and SAP Data Services consulting manager for Decision First Technologies. He has gained valuable experience with SAP HANA based on numerous projects and his management of the Decision First Technologies SAP HANA lab in Atlanta, GA. He holds multiple SAP HANA certifications and is a lead contributing author to the book Implementing SAP HANA. He also writes the All Things BOBJ BI blog at http://bobj.sapbiblog.com. You can follow Jonathan on Twitter @jdh2n.

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