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In today’s highly competitive marketplace, it is important to deploy a data-processing architecture that not only meets your immediate tactical needs but also can change to adapt to your future strategic requirements. In December 2009, IBM introduced the DB2 pureScaleTM Feature for Enterprise Server Edition (the DB2 pureScale Feature). The DB2 pureScale Feature builds on familiar and proven design features from the IBM DB2 for z/OS® database software (DB2 for z/OS). IBM has brought the industry-leading technology and reliability of DB2 for z/OS to open systems.
The DB2 pureScale Feature provides the following key benefits
Virtually unlimited capacity - The ability to scale out your system by easily adding servers to your cluster.
Application transparency – The ability to leverage your existing applications without changes.
Continuous availability - By providing an active-active architecture with inherent redundancy.
Reduced total cost of ownership (TCO) - By providing simplified deployment and management of advanced technology.
This paper describes how to upgrade a DB2 V9.7 for Linux, UNIX, and Windows environment to the DB2 pureScale Feature (DB2 V9.8).
The DB2 pureScale Feature leverages proven technology from the DB2 for z/OS data- sharing architecture to bring the active-active shared-disk technology to open systems.
The DB2 pureScale Feature offers you the following key benefits:
Virtually unlimited capacity. The DB2 pureScale Feature provides virtually unlimited capacity by allowing the addition and removal of members on demand. The DB2 pureScale Feature can scale to 128 members and has a highly efficient centralized management facility that allows for very efficient scaling. The DB2 pureScale Feature also uses a technology called Remote Direct Memory Access (RDMA), which provides a highly efficient internode communication mechanism that also facilitates scaling.
Application transparency. An application that runs in a DB2 pureScale environment does not have to know about the different members in the cluster or be concerned about partitioning data. The DB2 pureScale Feature automatically routes applications to the most appropriate members. The DB2 pureScale Feature also provides support for a great deal of the syntax that is used by database vendors other than IBM, allowing the applications that use that syntax to run in a DB2 pureScale environment with minimal or no changes. In many cases, you can gain the benefits of the DB2 pureScale Feature without having to modify your applications.
Continuous availability. With the fully active-active configuration, if one member fails, processing can continue on the remaining active members. Only data that was being modified on the failed member is unavailable until database recovery is completed, which is performed for only that set of data and is very quick. In competing solutions, an entire system freeze might occur during database recovery.
Reduced total cost of ownership (TCO). The DB2 pureScale Feature can help reduce TCO because it handles the deployment and maintenance of the components it includes. Integrated, simplified deployment and maintenance reduce possible steep learning curves that are associated with some of the competing technologies.
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By
Indira Kumar
posted