.. _src_ref:

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AIX: System Resource Controller (SRC)
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:Title:        AIX: System Resource Controller (SRC)
:Author:       Douglas O'Leary <dkoleary@olearycomputers.com>
:Description:  Overview of SRC on AIX
:Date created:
:Date updated:
:Disclaimer:   Standard: Use the information that follows at your own risk.  If you screw up a system, don't blame it on me...

System Resource Controller (SRC) is something that has bit me in the past, 
particularly when adding inet services. According to the training manual, its 
primary purpose is to *minimize operator intervention in controlling subsystem 
processes by providing:*

*  Consistent user interface for start, stop, and status queries
*  Logging of abnormal termination of subsystems.
*  Tracing of a subsystem, a group of subsystems, or a subserver.
*  Support for control of operations on a remote system.
*  Refreshing of a subsystem

There are a number of commands of note:

*  ``startsrc``: Starts a service.
*  ``stopsrc``: Stops a service.
*  ``refresh``: Refreshes (SIGHUP) a service.
*  ``lssrc``: Lists resources and attributes of services.
*  ``chsys``: Changes a service.
*  ``rmsys``: Removes a service.
*  ``mksys``: Creates a services.

``lssrc`` will prove useful in identifying the various subsystems that need 
to be managed via the SRC

As noted in the adding inet services rant, not following these directions 
will prevent the subsystem from operating the way you're expecting it to.

To identify what systems are under SRC control, execute the following::

   # lssrc -a
   Subsystem         Group            PID     Status 
    syslogd          ras              3710    active
    portmap          portmap          5186    active
    inetd            tcpip            4660    active
    snmpd            tcpip            7482    active
    dpid2            tcpip            7998    active
    ypbind           yp               9550    active
    biod             nfs              10066   active
    rpc.lockd        nfs              10328   active
    qdaemon          spooler          7230    active
    tftpd            tcpip            7744    active
    writesrv         spooler          8814    active
    nfsd             nfs              16710   active
    rpc.mountd       nfs              22802   active