October 2006
Intermediate to advanced
160 pages
4h 9m
English
book
DB2 for z/OS: Data Sharing in a Nutshell
by Paolo Bruni, Mark Anders, KyengDong Park, Mark Rader, Judy Ruby-Brown
Content preview from DB2 for z/OS: Data Sharing in a Nutshell
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Chapter 3. The coupling facility 57
Figure 3-8 Four possible CF configurations
The System z processors are distinguished by many fast processor engines in
the box and a number of speciality engines. The specialty engine important in
this section is the internal coupling facility (ICF). ICFs have a number of financial
advantages. They are not counted as a general purpose processors, because
they can only run the coupling facility control code (CFCC), the microcode that
turns them into CFs. ICFs require fewer external links than external CFs,
because they are internal to the z/OS images on the same box. Configuration “C”
in Figure 3-8 is the most ...
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