December 2006
Intermediate to advanced
228 pages
6h 20m
English
book
Introduction to the New Mainframe: Large-Scale Commercial Computing
by Mike Ebbers, Pilar Gonzalez Adrados, Frank Byrne, Rodney Martin, Jon Veilleux
Content preview from Introduction to the New Mainframe: Large-Scale Commercial Computing
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Chapter 5. Availability 101
5.5.1 z/OS components
Workload Manager (WLM)
With symmetry and dynamic workload balancing, your applications can remain
continuously available across changes, and your sysplex remains resilient
across failures. Adding a system, changing a system, or losing a system should
have little or no impact on overall availability. With symmetry and data sharing,
using the Parallel Sysplex Coupling Facility, you also have enhanced database
availability.
Automation
Automation plays a key role in availability. Typically, automation routines are
responsible for bringing up applications, and if something goes wrong,
automation handles the application's restart. The need for automation is quite
important in the sysplex, both fo
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