The only good I/O is a dead I/O!

摘要

How to reduce that inveterate batch window? There are many functions and techniques in S/390 platforms that can truly help you greatly reduce that elusive (and growind) batch window, but how do you find those opportunities and quantify them? This paper will describe actual cases where the batch window was analyzed, recommendations made and implemented, and then later re-measured to verify the study analytical results. In one case, a 6.5 TB shop was ble to reduce their batch window by over 4.5 hours per night. This represented an overall 50