The Model CL57 SX has a protected partition, called the system partition,
on the hard disk that contains system setup and utility programs, customer
and advanced diagnostics, and system-configuration data set. All
necessary functions provided by the Reference Diskette are also on this
partition and can be loaded by pressing Ctrl+Alt+Delete and, as soon as
the cursor moves to the upper right corner of the screen, pressing
Ctrl+Alt+Insert. The Reference Diskette is reserved to restore its
contents on the system partition when you replace a hard disk drive or
when a hard disk problem prevents the system from starting from this
The system-configuration data set holds up to nine different
configurations. The configuration data allows you to use the system
without running the automatic configuration after the system configuration
has been changed by attaching or removing a communications cartridge II to
or from the system expansion connector. On each power-on-reset, the POST
compares the current system configuration with the one stored in the CMOS
RAM and CMOS RAM Extension. If both configurations are the same, the POST
continues to test the system. If any differences are found, the POST
looks for the same configuration in the system-configuration data set on
the system partition, and selects the right configuration, then updates
the configuration in the CMOS RAM and CMOS RAM Extension. System
configuration data can be updated or removed by using the system utility
Any format command provided by an operating system has no effect on
formatting the system partition.
IBM PS/2 Model CL57 SX HMR
_ Copyright IBM Corp. 1991
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