SCF Reference Manual for G-Series RVUs (G06.27+)

Using SCF to Configure and Manage NonStop
S-Series Servers
SCF Reference Manual for G-Series RVUs—520413-005
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NonStop S-Series Configuration Architecture
Each G-series operating system has multiple subsystems that handle the configuration
and management of subsystem-specific generic processes, I/O processes, and system
hardware. Figure 1-1 gives an overview of these configuration components. Each
component is explained below.
Configuration components in systems running G-series have the following functions:
Figure 1-1. Configuration Components for Systems Running G-Series
Component Functions
CONFIG system
configuration database
Contains information about the placement and characteristics
of all system components. The database file is located on the
$SYSTEM.ZSYSCONF subvolume.
$ZCNF configuration utility
process
Is the database server for the subsystem managers.
Controls access to the system configuration database.
Manages requests for information about the CONFIG file.
Starts and maintains the $ZPM persistence manager.
$ZPM persistence
manager process
Starts and maintains persistence of subsystem managers.
Starts, stops, and (optionally) restarts generic processes.
Coordinates system load and processor reload activities.
Subsystem managers
such as $ZZLAN and
$ZZSTO
Configure and control subsystem devices.
VST004.vsd
$ZPM
$ZZKRN $ZZWAN
$ZZLAN $ZZSTO
$ZCNF
$SYSTEM.SYSCONF.CONFIG
CONFIG