Database HA

The typical HA solutions commonly used by the ASE database are available on HUAWEI CLOUD. For example, both High-availability and disaster recovery (HADR) and SUSE® Linux Enterprise High Availability Extension (HAE) can be used to achieve ASE system HA. HUAWEI CLOUD also provides HA solutions for both the databases and applications to ensure stable and reliable running of the SAP ASE system.

The databases and applications of the SAP ASE production system is installed in distributed mode.

Solution 1: HADR (recommended)

HADR is an SAP solution designed for the ASE database. The HADR solution consists of two database nodes (active and standby) and one management node (Fault Manager). If the active database node is faulty, the standby node automatically takes over the workloads, ensuring high service availability. Generally, HA solutions use shared storage. However, in the HADR solution, resources of all nodes are isolated, which effectively reduces the risk of single points of failure. For details, see the HADR User Guide on the SAP website.

Solution 2: SUSE HAE

SUSE HAE is an integrated suite of open source clustering technologies that enables you to implement highly available physical and virtual Linux clusters and eliminates single points of failure. It ensures high availability and manageability of critical resources, including data, applications, and services. Therefore, it helps you maintain business continuity, protect data integrity, and reduce unplanned downtime for your mission-critical Linux workloads. Figure 1 shows the architecture of SUSE HAE for the SAP ASE system. For details, see the SUSE official document.

Figure 1 SUSE HAE scheme