Technical data

sysconfig
sysconfig
Maintains the subsystem configuration.
Format
sysconfig -c | -d | -m | -q | "-Q" | -r | -s | -u [subsystem-name][attribute-list]
Description
The sysconfig command queries and modifies the in-memory subsystem
configuration. Use this command to add subsystems, reconfigure subsystems
that are already in memory, query subsystems, and unconfigure and remove
subsystems.
The sysconfig utility allows you to modify the value of subsystem attributes, as
long as the subsystem supports run-time modifications.
When you configure a subsystem using the
-c flag, you make that subsystem
available for use. If the subsystem is loadable, the sysconfig command loads the
subsystem and then initializes the value of its attributes.
To modify the value of a subsystem attribute, use the -r (reconfigure) flag.
Specify the subsystem attributes and values on the command line. The
sysconfig
utility modifies the named attributes by storing the value you specify in them.
The modifications take effect immediately.
To get information about subsystem attributes, use either the -q flag or the "-Q"
flag. You can specify an attribute list with both these flags. When you use the -q
flag, the sysconfig command displays the value of attributes from the in-memory
system configuration table.
When you use the
"-Q" flag, the sysconfig utility displays the following
information about each attribute you specify in the attribute list or, if you
omit the attribute list, every attribute for the specified subsystem. You must
enclose the "-Q" flag in quotation marks to preserve its case.
• Attribute datatype.
• Operations supported by the attribute. The op code indicates whether the
attribute can be:
Configured
Reconfigured
Queried
For example, if op=RCQ , the attribute can be configured (using the
sysconfigdb utility), reconfigured (using the sysconfig -r command),
and queried (using the sysconfig -q command).
• Minimum and maximum allowed attribute values.
To get information about the state of subsystems, use the
-s flag. This flag
provides a list of the subsystems that are currently loaded and configured. If you
specify subsystem-name, the command displays information about the state of
that subsystem. Each subsystem can have one of three states:
• Loaded and configured (available for use)
• Loaded and unconfigured (not available for use but still loaded)
Troubleshooting Utilities Reference A–35