High availability (HA) is the term that describes systems that are available for transaction processing to a degree of tolerance dictated by:
Failover is the term that refers to the capability to automatically transfer workload to a backup database manager if the primary database manager fails due to hardware or software failure.
Although failover capability can be achieved through platform-specific software, the current version of DB2® integrates the IBM Tivoli System Automation for Multiplatforms Base Component (SA MP Base Component) to support failover in high availability systems.
For SA MP Base Component prerequisites, refer to the Installation and Configuration Guide at http://publib.boulder.ibm.com/tividd/td/IBMTivoliSystemAutomationforMultiplatforms2.2.html
This panel lets you install or upgrade the SA MP Base Component, depending on your scenario. The DB2 Setup wizard automatically detects which options are available to you, including Install the SA MP Base Component or Upgrade the SA MP Base Component. Under certain conditions you must manually upgrade the SA MP Base Component. For a complete description of the conditions required to use the DB2 Setup wizard to install or upgrade the SA MP Base Component, see http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/topic/com.ibm.db2.luw.qb.server.doc/doc/t0051289.html.