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Linux® on the Mainframe
book

Linux® on the Mainframe

by John Eilert, Maria Eisenhaendler, Dorothea Matthaeus, Ingolf Salm
June 2003
Intermediate to advanced content levelIntermediate to advanced
464 pages
10h 33m
English
Pearson
Content preview from Linux® on the Mainframe

21.4. Integrated Facility for Linux (IFL)

The Integrated Facility for Linux is a feature of the zSeries hardware. When this feature is installed on the machine, a spare processor is moved into a special pool of processors that can be used only for Linux work. Unlike when a processor is added to the general purpose processor pool, the model number of the machine does not change as IFL features are installed. These special IFL processors are usable only in an LPAR that is defined as “Linux Only.”

The traditional operating systems such as z/OS, VSE/ESA, and TPF, are not able to access IFL processors. The IFL feature also allows z/VM to be run in the LPAR of type “Linux Only,” provided that z/VM is hosting Linux guests. Thus, one is not limited by ...

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ISBN: 0131014153Purchase book