August 2012
Intermediate to advanced
452 pages
15h 41m
English
book
Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
by Paolo Bruni, Patric Becker, Willie Favero, Ravikumar Kalyanasundaram, Andrew Keenan, Steffen Knoll, Nin Lei, Cristian Molaro, P S Prem
Content preview from Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
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Chapter 6. Workload Manager settings for DB2 Analytics Accelerator 145
6.1 General WLM concepts and considerations
The idea behind WLM is to make a contract between the installation (as defined by the
performance administrator) and the operating system. The installation classifies the work
running on the z/OS operating system in distinct service classes. The installation defines
business importance and goals for the service classes. WLM uses these definitions to
manage the work across all systems of a sysplex environment. WLM will adjust dispatch
priorities and resource allocations to meet the goals of the service class definitions. It will do ...
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