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Introduction to the New Mainframe: z/OS Basics by Bill Ogden, Wayne O'Brien, Mike Ebbers, John Kettner

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Mainframe hardware systems and high availability
 
Objective: As a new z/OS system programmer, you need to develop a thorough understanding of the hardware that runs the z/OS operating system. z/OS is designed to make full use of mainframe hardware and its many sophisticated peripheral devices. You should also understand how the hardware and software achieves near-continuous availability through concepts such as Parallel Sysplex and “no single points of failure.”
After completing this chapter, you will be able to:
Discuss System/360 (S/360) ...

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