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Dynamic VSAM Buffering

Buffering affects VSAM performance. Optimum buffering leads to improved performance, which results in shorter online response times, increased batch throughput, and shorter batch turnaround times. Improper buffering causes job backlogs, missed deadlines, and irate terminal operators.

This chapter presents an overview of the buffering techniques used by VSAM and explains how proper buffering accelerates VSAM processing.