The following property must be present in the /platform/sun4u/kernel/drv/rmclomv.conf file for the ALOM watchdog to function:
rmclomv-watchdog-mode=”app”
This property tells the watchdog subsystem to disable the kernel level heartbeat mechanism. Comment out or remove this line to enable the kernel level watchdog.
The ntwdt driver will have an associated driver configuration file (ntwdt.conf) that will specify the following parameters:
Managed system interface variables
Understanding the ALOM watchdog timer