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System Management Guide: Operating System and Devices
The System Resource Controller
(SRC) is started during system initialization with a record for the
/usr/sbin/srcmstr daemon in the /etc/inittab
file. The default /etc/inittab file already contains such a
record, so this procedure might be unnecessary. You can also start the
SRC from the command line, a profile, or a shell script, but there are several
reasons for starting it during initialization:
- Starting the SRC from the
/etc/inittab file allows the init command to restart the
SRC if it stops for any reason.
- The SRC is designed to
simplify and reduce the amount of operator intervention required to control
subsystems. Starting the SRC from any source other than the
/etc/inittab file is counterproductive to that goal.
- The default
/etc/inittab file contains a record for starting the print
scheduling subsystem (qdaemon) with the startsrc
command. Typical installations have other subsystems started with
startsrc commands in the /etc/inittab file as
well. Because the srcmstr command
requires the SRC be running, removing the srcmstr daemon from the
/etc/inittab file causes these startsrc commands to
See the srcmstr command for the configuration
requirements to support remote SRC requests.
- Reading and writing the
/etc/inittab file requires root user authority.
- The mkitab command requires root user
- The srcmstr daemon record must exist in the
procedure is necessary only if the /etc/inittab file does not
already contain a record for the srcmstr daemon.
- Make a record for the
srcmstr daemon in the /etc/inittab file using the
mkitab command. For example, to make a record identical to
the one that appears in the default /etc/inittab file, type:
mkitab -i fbcheck srcmstr:2:respawn:/usr/sbin/srcmstr
The -i fbcheck flag ensures that the record is inserted before
all subsystems records.
- Tell the init
command to reprocess the /etc/inittab file by typing:
When init revisits the /etc/inittab file, it
processes the newly entered record for the srcmstr daemon and
starts the SRC.
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