AIX: System Resource Controller (SRC)¶
- 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