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ABCs of z/OS System Programming: Volume 5 by Thomas Stoeckel, Valeria Sokal, Redelf Janssen, Andreas Horn, Luiz Fadel, Paola Bari, Alvaro Salla, Paul Rogers

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Geographically Dispersed Parallel Sysplex
How would a shutdown of your z/OSs affect your business? Do you put off system maintenance and upgrades to avoid system downtime? Is your business-critical processing and data protected from a site disaster? For how many hours (or minutes) can your enterprise survive without running critical business transactions? What is the cost associated with the outage?
The costs associated with an outage are expected to be much higher now because all enterprises have become much more dependent on Information Technology ...

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