SAP High Availability
What Is High Availability?
High availability (HA) is the ability of a system to operate continuously without failing for a designated period of time. HA ensures a system meets an agreed-upon operational performance level. Availability is expressed as a percentage:
- 99% = 87.6 hours of annual downtime
- 9% = 8.76 hours of annual downtime
- 99% = 52 minutes of annual downtime
- 999% = 5 minutes of annual downtime.
High availability usually equals 99.999% or better. HA is achieved by eliminating single points of failure and providing the ability to rapidly resume operations after a system outage with minimal business loss.
What Is SAP High Availability?
SAP has put in place plans and procedures that enable SAP ERP and other critical systems to keep on running. A high-availability solution for SAP needs to achieve four core goals:
- Minimize downtime
- Eliminate data loss
- Maintain data integrity
- Enable flexible configuration.
For example, SAP offers the Standalone Enqueue Server 2 (ENSA2) as a component of Application Server ABAP to provide high availability. It supports two-node and multi-node clusters, which enables switchover to ENSA2 to ensure continued system availability. In addition, SAP High Availability Failover enables SAP Adaptive Server Enterprise (SAP ASE) to work in a cluster of servers in a specific configuration, enabling failover and failback on servers.
Further Resources for SAPinsiders
SAP High Availability Best Practices in AWS. In this webinar, Brett Barwick, Senior Software Engineer of SIOS Technology Corp., and Tamara Astakhov, Senior Partner, Solution Architect for Big Data & Analytics, AWS, discuss best practices for SAP high availability and how to achieve near-zero downtime.
The 15 Most Overlooked Items in Planning for High Availability and Disaster Recovery. In this article, Kurt Bishop, a retired member of SAP America’s Technical Consulting Team, offers advice on how to avoid costly mistakes by sharing the 15 most overlooked items — including the cost of downtime, security issues, loss of personnel and systems, and the importance of testing — and discussing how to incorporate them into recovery planning.
Architecting a High Availability SAP NetWeaver Infrastructure: Strategies for Ensuring a Successful, Cost-Effective Implementation. In this article, Matt Kangas, U.S. Product Manager for SAP NetWeaver Application Server at SAP Labs, provides an overview of HA basics and then discusses the technical details of an HA setup with SAP NetWeaver, including topics such as architectural single points of failure and ways to isolate and protect such failure points.
Vendors that can assist SAP customers with high availability include: AWS, Google Cloud, Microsoft, Managecore, Red Hat, Saberpoint, SIOS, SUSE, Virtustream, and Zebra Technologies.
1296 results
-
Protect Your SAP HANA Investment with HA and DR Options
Implementing an SAP HANA system involves more than just selecting a standalone server. Organizations must also consider the different options available in terms of high availability (HA) and disaster recovery (DR). Depending on the organization’s service level requirements, multiple servers, storage devices, backup devices, and network devices might be required. This article gives an overview...…
-
SAP and SuccessFactors – An Overview
In this exclusive in-depth report, learn about SuccessFactors and what the acquisition means for SAP ERP HCM and your business. Get a detailed, comprehensive overview of SuccessFactors, SAP’s strategy, the future of SAP ERP HCM, and how the acquisition of SuccessFactors affects your business. It aims to dispel any myths or confusion around SuccessFactors and...…
-
Accurately Plan Configurable Products with SAP APO Characteristics Dependent Planning
Learn about the basic concepts of characteristics dependent planning (CDP) and how to use CDP for accurately planning configurable products within an SAP Advanced Planning & Optimization environment. Key Concept Configurable products are make-to-order (MTO) products in which variations are managed under a single product number as attributes (characteristics). The final product is dynamically configured...…
-
An Overview of SAP SuccessFactors Interview Scheduling Functionality
Learn how Interview Scheduling functionality of SuccessFactors Recruiting Management enables recruiters to quickly and easily manage the recruiting process, thereby reducing the time spent scheduling interviews. Key Concept The Interview Scheduling feature of SAP SuccessFactors allows interviewers to enter their availability directly into the system to easily schedule interviews. The candidate self-scheduling functionality allows organizers...…
-
Top 10 Considerations for Your SAP Deployment in Public Cloud
Many SAP customers have had mission critical SAP applications running on-premise for years. These SAP applications support business processes related to finance, supply chain, and human resources, making the availability of these applications is critical to successfully run a business. There are also data privacy requirements that must be met. Oftentimes these SAP systems are…
-
MythBusters: Why Customer Obsession Is Key for Successful SAP Migrations to the Cloud
In this article, Axel Streichardt, Head of Worldwide Business Development for SAP on AWS, share thought leadership on how a customer-focused perspective at AWS led to unparalleled uptime for SAP environments. He shares how AWS is providing agility in tough, unpredictable circumstances and addressing the current challenges for SAP customers. This article: – Dispels the…
-
How to Successfully Run SAP S4/HANA on Linux
Matthew Shea: I’m pleased to be joined today on running SAP S/4HANA on Linux. I am joined by a team of SUSE experts to discuss SUSE Linux Enterprise Server for SAP Applications. Today’s panelists are Fabian Herschel, Markus Guertler and Dirk Oppenkowsi. Dirk: This is Dirk, I’m the global alliance director for SAP, working on…
-
Best Practices for mySAP CRM-to-CTI Integration Testing
Desktop load testing is not the same as testing the integration between mySAP Interaction Center (IC) and the computer-telephony interface (CTI). Learn why and what constitutes an effective mySAP IC-CTI approach. Key Concept The computer-telephony interface (CTI) allows computer systems to act as a call center by linking them to the telephone system. It ensures that calls...…
-
Why Integrating SAP and Non-SAP Systems is No Longer Optional
The modern enterprise landscape is shifting towards a hybrid model where 52% of organisations now use SAP alongside a diverse range of third-party applications, highlighting the critical need for effective integration strategies to optimise functionality and streamline processes amid increasing complexity.
-
Accelerated Order Processing with EDQA in Global ATP
Learn when and how to use Event-Driven Quantity Assignment (EDQA) in SAP Advanced Planning and Optimization (SAP APO) Global Available-to-Promise (Global ATP). Key Concept Available-to-Promise (ATP) is an order management business process that attempts to commit and fulfill customer orders on required dates and quantities considering business rules and availability of finished products, components, and...…
Your request has been successfully sent