NonStop S-Series Operations Guide (G06.27+)

Determining Your System Configuration
HP NonStop S-Series Operations Guide—522459-008
2-27
Using SCF to Determine Your System Configuration
SCF Configuration Files
Your system is delivered with a standard set of configuration files:
•
The $SYSTEM.SYSnn.CONFBASE file contains the minimal configuration
required to load the system.
•
The $SYSTEM.ZSYSCONF.CONFIG file contains a standard system configuration
created by HP. This basic configuration includes such objects as disk drives, tape
drives, ServerNet adapters, the local area network (LAN) and wide area network
(WAN) subsystem manager processes, the OSM or TSM server processes, and so
on. You typically use this file to load the system.
•
The $SYSTEM.ZSYSCONF.CONFIG file is also saved on your system as the
ZSYSCONF.CONF0000 file.
All subsequent changes to the system configuration are made using SCF. The system
saves configuration changes on an ongoing basis in the ZSYSCONF.CONFIG file. You
have the option to save a stable copy of your configuration at any time in
ZSYSCONF.CONFxxyy using the SCF SAVE command. For example:
-> SAVE CONFIGURATION 01.02
You can save multiple system configurations by numbering them sequentially based on
a meaningful convention that reflects, for example, different hardware configurations.
Each time you load the system from CONFBASE or CONFxxyy, the system
automatically saves in a file called ZSYSCONF.CONFSAVE a copy of the
configuration file used for the system load.
For guidelines on how to recover if your system configuration files is corrupted, refer to
Troubleshooting and Recovery Operations When Starting the System on page 16-11.
For certain SCF subsystems, configuration changes are persistent. The changes
persist through processor and system loads unless you load the system with a different
configuration file. Examples of these subsystems are the Kernel, ServerNet LAN
Systems Access (SLSA), the storage subsystem, and WAN. For other SCF
subsystems, the changes are not persistent. You must reimplement them after a
system or processor load. Examples of these subsystems are General Device Support
(GDS), Open System Services (OSS), and SQL communication subsystem (SCS).
Using SCF to Display Subsystem Configuration Information
SCF enables you to display, in varying levels of detail, the configuration of objects in
each subsystem supported by SCF. For example, you can use the LISTDEV command
to list all the devices on your system or to list the objects within a given subsystem.
Then you can use the INFO command with a logical device name or device type to
obtain information about a specific device or class of devices.
Another useful command when displaying information is the ASSUME command. Use
the ASSUME command to define a current default object and fully qualified object
name. Then you can use INFO to display information just for that object. For example,