Buffer Pool Tool for IMS

Responsive Systems, a leading provider of specialty tuning solutions for DB2 UDB for z/OS and z/OS, extends the technology of the Buffer Pool Tool® for DB2, the industry standard software for tuning DB2 buffer pools, to IMS for z/OS and z/OS.

The Buffer Pool Tool for IMS provides an in-depth statistical analysis of activity within each database pool and sub-pool, both at the pool level, and for every dataset assigned to a sub-pool. It works for both OSAM and VSAM buffers. In addition to an extensive and unique statistical analysis, it provides the ability to predict the performance effect of:

• Increasing or decreasing the number of buffers

• Moving a database to another pool or sub-pool

• Creating a new pool or sub-pool

Tuning of the IMS buffer pools has always been, and remains, a critical performance issue. Many of your critical business systems run on IMS, and your workload has continued to grow over the years. As systems continue to grow, they must be re-tuned to provide good performance. Tuning of the database buffer pools is not directly intuitive - because bigger is not always better, and especially, since performance is not always linear in nature. This software provides un-paralleled statistical information to help you tune effectively, and the predictive capability to show you the effect of tuning changes without affecting the performance of your system, or having to re-start it. It is now easy to optimize the performance versus memory trade-off. Additionally, it uses a low overhead proprietary collection facility so the impact to your production system is minimal.

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Last modified: March 10, 2008 by Dr Bernie Domanski