Operation Manual

66 Netra t 1400/1405 Installation and User’s Guide • September 1999
System Watchdog
LOMlite includes a watchdog timer, which by default controls the system alarm.
The watchdog process, tsdog, is enabled at boot time by an rc script,
/etc/init.d/tsaldog. You can edit this script to configure the watchdog timeout,
the reset intervals, and wether ASR is enabled. See the tsdog(1M) man page for
details.
Alternatively, you can disable the script, edit the driver configuration file lom.conf
to enable the watchdog, and use your own process to reset the watchdog to monitor
the functioning of an application. See the lom(7d) man page for details of the
interface that you use to set up this process.
If the watchdog expires, by default the system alarm and the fault LED are switched
on.
System Monitoring
When the system is booted, a LOMlite monitoring daemon is started by the rc script,
/etc/init.d/lomlited. This daemon reports any state change for the fans,
power supply, alarms or fault LED, including restoration of service. All events are
reported to syslogd with an identifier string lomlited. They are then handled
according to the syslogd configuration.
You can use the LOMlite utilities to perform more advanced configuration and
monitoring if necessary. For details, see the man pages for lomctl(1M),
lominfo(1M), lomprog(1M), tsdog(1M), tsctl(1M), tsstate(1M) and
tsunlock(1M).
LW3User.book Page 66 Wednesday, November 10, 1999 9:00 AM