ABCs of z OS System Programming Volume 13 is popular PDF and ePub book, written by Paul Rogers in 2012-02-07, it is a fantastic choice for those who relish reading online the Computers genre. Let's immerse ourselves in this engaging Computers book by exploring the summary and details provided below. Remember, ABCs of z OS System Programming Volume 13 can be Read Online from any device for your convenience.
ABCs of z OS System Programming Volume 13 Book PDF Summary
A major goal of operating systems is to process jobs while making the best use of system resources. Thus, one way of viewing operating systems is as resource managers. Before job processing, operating systems reserve input and output resources for jobs. During job processing, operating systems manage resources such as processors and storage. After job processing, operating systems free all resources used by the completed jobs, making the resources available to other jobs. This process is called resource management. There is more to the processing of jobs than the managing of resources needed by the jobs. At any instant, a number of jobs can be in various stages of preparation, processing, and post-processing activity. To use resources efficiently, operating systems divide jobs into parts. They distribute the parts of jobs to queues to wait for needed resources. Keeping track of where things are and routing work from queue to queue is called workflow management, and is a major function of any operating system. JES3 considers job priorities, device and processor alternatives, and installation-specified preferences in preparing jobs for processing job output. This IBM® Redbooks® publication describes a JES3 environment that includes the following: - Single-system image - Workload balancing - Availability - Control flexibility - Physical planning flexibility.
Detail Book of ABCs of z OS System Programming Volume 13 PDF
- Author : Paul Rogers
- Release : 07 February 2012
- Publisher : IBM Redbooks
- ISBN : 9780738436258
- Genre : Computers
- Total Page : 1038 pages
- Language : English
- PDF File Size : 16,5 Mb
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