Sun Microsystems CP2500 manual Environmental Monitoring Application Programming

Using the show-sensorsCommand at the

OpenBoot PROM

The show-sensorscommand at OpenBoot PROM displays the readings of all the temperature sensors on the board. A sample output for typical sensor readings for a Netra CP2500 is as follows:

ok show-sensors
Sensor#	Sensor Name			Sensor Reading
=======	==================================== ===================
1	EP 5v	Sensor		(d1) 4.968		volts
2	EP 3.3v		Sensor	(8b)	3.336		volts
3	BP +12v		Sensor	(ce)	11.760			volts
4	BP -12v		Sensor	(63)	-12.010 volts
5	IPMB Power		Sensor	(d2)	4.968		volts
6	SMC Power		Sensor	(69)	2.448		volts
7	VDD 3.3v		Sensor	(a8)	3.2592			volts
8	VCCP		Sensor	(64)	1.1800			volts
9	+12v		Sensor	(ba)	11.6250 volts
a	-12v		Sensor	(36)	-12.040 volts
b	+5v		Sensor	(be)	4.940		volts
c	Standby 3.3v		Sensor	(be)	3.2680			volts
d	Main 3.3v		Sensor	(be)	3.2680			volts
e	External I	temp (CPU)	Sensor	(3e)	62	degree C
f	External II temp (Outlet)		Sensor	(20)	32	degree C
10	Internal	temp (Inlet)	Sensor	(1d)	29	degree C

ok

Environmental Monitoring Application Programming

The following sections describe how to use the environmental monitoring functions in an application program.

For the environmental monitoring application program (envmond) to monitor the hardware environment, the following conditions must be met:

■The system controller device driver must be installed.

■The environmental monitoring application program (envmond) must be installed and running.

34 Netra CP2500 Board Programming Guide • March 2007