IBM® DB2® pureScale® Feature offers clustering technology that helps to achieve high availability and scalability for your product applications.
DB2 pureScale Feature incorporates several design features to deliver fault tolerance that not only can keep your instance available, but also minimizes the effect of component failures on the rest of the database system. DB2 pureScale Feature works as an active cluster, which is accessible through a single IP and helps to achieve seamless failover. This solution gives your environment the performance benefits of a load-balanced database and the reliability of a highly available system.
You can implement DB2 pureScale Feature to use these features and assist with your high availability configuration. However, you must complete some configuration steps to use DB2 pureScale Feature with your product.
There are prerequisites to installing DB2 pureScale Feature and when the product is installed, post-installation configuration steps are required.
Products such as Maximo® Asset Management can be installed on a DB2 pureScale Feature database by connecting to a single instance. Seamless failover must be configured when the installation is complete. If the database fails during the installation process, failover cannot occur during that time. You must ensure that the database remains operational during the installation and then follow the post-installation configuration steps in the Configuring DB2 pureScale Feature section.