SCF Reference Manual for the Kernel Subsystem

1 Kernel Subsystem Overview
This chapter describes the $ZZKRN Kernel subsystem manager and the SCF interface to the Kernel
subsystem.
SCF Interface to the Kernel Subsystem
The Kernel subsystem configures and maintains the subsystem managers for NonStop servers
running G-series, H-series, and J-series RVUs. You can use SCF to configure, control, and inquire
about the $ZZKRN Kernel subsystem manager process and other generic processes on these
systems.
Figure 1 shows the SCF interface to the Kernel subsystem.
Figure 1 SCF Interface to the Kernel Subsystem
The interfaces between SCF, the Subsystem Control Point (SCP), and $ZZKRN are described in
both the SCF Reference Manual for G-Series RVUs and the SCF Reference Manual for J-Series and
H-Series RVUs. The other interfaces with $ZZKRN are described in the subsections that follow.
Components of the Kernel Subsystem
This subsection describes the components of the Kernel subsystem.
Generic Processes
A generic process is a process that is created by the operating system or a user in order to perform
a task. Generic processes are different from I/O processes and are described more thoroughly
under “Definition of a Generic Process” (page 38).
Generic processes are an important part of the configuration of NonStop systems because the
subsystem managers supported by these systems are configured as generic processes. Listed in
12 Kernel Subsystem Overview