The powerd daemon is started by pmconfig(1M) to monitor system activity and perform an automatic shutdown using the suspend-resume feature. When the system is suspended, complete current state is saved on the disk before power is removed. On reboot, the system automatically starts a resume operation and the system is restored to the same state it was in immediately prior to suspend.

Immediately prior to system shutdown, the daemon notifies syslogd(1M) of the shutdown, which broadcasts a notification.

The following option is supported:

-n

No broadcast mode. The daemon silently shuts down the system without notifying syslogd(1M).

/etc/power.conf

Power Management configuration information file

See attributes(5) for descriptions of the following attributes:

pmconfig(1M), dtpower(1m), syslogd(1M), power.conf(4), attributes(5), cpr(7), pm(7D)

Using Power Management