Business Continuity with IBM Db2 HADR and Linux Pacemaker

This technical report provides an overview of IBM Db2 High Availability Disaster Recovery (HADR) on Lenovo ThinkSystem, focusing on its implementation and configuration with Linux Pacemaker. The document outlines the critical features of HADR, including its ability to maintain data availability during partial and complete site failures. It details the processes involved in setting up HADR, such as log data shipping from primary to standby databases and the automatic takeover of standby databases in case of primary database failure. The report also discusses the prerequisites for an integrated solution, including cluster software and configuration steps necessary for optimal performance in SAP environments. Additionally, it explains the synchronization modes available for standby databases and the benefits of using multiple standby databases to achieve high availability and disaster recovery objectives. This document serves as a guide for database administrators and information management professionals seeking to implement robust business continuity solutions using IBM Db2.