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Alarms in Linux Media Servers
Issue 1 June 2005 99
_WD (Watchdog) Alarms
S8700 | 8710 / S8500 / S8300
The Watchdog MO is a media server process that:
● Creates other Communication Manager processes
● Monitors their sanity
● Can recover their failures
These applications come up and start heartbeats to the Watchdog. For more information about
Watchdog, see Table 31: _WD Alarms in Media Server
on page 100 that describes the _WD
MO’s alarms and their troubleshooting procedures.
Watchdog also starts up a script to monitor Linux services and daemons, and threads to
communicate with a hardware-sanity device. For alarm-related information about these
services, daemons, and threads, see SVC_MON (Service Monitor)
on page 79.