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The challenge of storage performance tuning is to understand and control interacting factors while accurately measuring application performance. Because the performance of the storage subsystem accounts for only a portion of overall application performance, tuning must be done in context. With multiple parameters to consider, the task of performance tuning even one application can seem formidable. Tuning all the different applications that share a single storage subsystem seems even more formidable. To reduce the complexity of tuning, IBM storage subsystems feature performance monitoring and flexible tuning controls in DS4000 Storage Manager.
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