March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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Chapter 2. Mainframe hardware systems 47
The system administrator can assign one or more system processors for the
exclusive use of an LPAR. Alternately, the administrator can allow all processors
to be used on some or all LPARs. Here, the system control functions (often
known as microcode or firmware) provide a dispatcher to share the processors
among the selected LPARs. The administrator can specify a maximum number
of concurrent processors executing in each LPAR. The administrator can also
provide weightings for different LPARs (for example, specifying that LPAR1
should receive twice as much processor time as LPAR2).
The operating system ...
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