September 2002
Intermediate to advanced
332 pages
11h 1m
English
Content preview from IBM eServer zSeries 900 Technical Guide
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52 IBM eServer zSeries 900 Technical Guide
Hiperspaces on z/Architecture mode
Hiperspace services have been re-implemented to use central storage rather than expanded
storage. All of the Hiperspace APIs, as well as the Move Page (MVPG) instruction, continue
to operate in a compatible manner. There is no need to change products that use
Hiperspaces.
Hardware System Area
The Hardware System Area (HSA) is a non-addressable storage area that contains the CPC
Licensed Internal Code and configuration-dependent control blocks. The HSA size varies
according to:
Power-On-Reset mode of the CPC.
Number of installed processors.
Size and complexity of the system I/O configuration.
The expansion percentage used for dynamic I/O configuration.
For planni ...
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