Automated Cluster Controlled HADR (High Availability Disaster Recovery) Configuration Setup Using the IBM DB2 High Availability Instance Configuration Utility (db2haicu)
Db2haicu is a tool available with DB2 9.5 and stands for the "DB2 High Availability Instance Configuration Utility". This utility takes in user input regarding the software and hardware environment of a DB2 instance, and configures the instance for High Availability using the TSA Cluster Manager. During this configuration process, all necessary resources, dependencies and equivalencies are automatically defined to TSA. This paper describes two distinct configurations of an automated IBM DB2 for Linux, UNIX, and Windows failover solution. The configurations will be based on the DB2 High Availability Disaster Recovery (HADR) feature and the DB2 High Availability Instance Configuration Utility (db2haicu) available with DB2 Version 9.5.