Sun Enterprise [TM] 250 Environmental Information

Asset ID:	1-71-1010422.1
Update Date:	2017-02-01
Keywords:

Solution Type Technical Instruction Sure

Solution 1010422.1 : Sun Enterprise [TM] 250 Environmental Information

Applies to:

Sun Enterprise 250 Server - Version All Versions and later
All Platforms

Goal

Sun Enterprise [TM] 250 Environmental Information

Fix

Steps to Follow

On a Sun Enterprise 250, there are six sensors located around the machine. They are labeled as follows:

CPU0 (central processing unit 01)
CPU1 (central processing unit 1)
MB0 (motherboard 0)
MB1 (motherboard 1)
PDB (power distribution board)
SCSI (small computer system interface)

In a typical "/usr/sbin/prtdiag -v" they would be viewed as such

============= Environmental Status ============

System Temperatures (Celsius):

------------------------------

CPU0 46

CPU1 44

MB0 38

MB1 36

PDB 35

SCSI 30

========== =======================

The warning and the critical temperature thresholds have changed from what is in the Sun Enterprise 250 Server Owner's Guide. The new thresholds are as follows:

Ambient temperature inside the machine:
Warning 55 degrees C
Critical 60 degrees C

CPU module temperatures are now:

Warning 63 degrees C
Critical 68 degrees C

The Sun Enterprise 250 also issues a warning if the temperature reaches a low threshold. The low temperature thresholds are as follows:

Ambient 5 degrees C
CPU 0 degrees C

Note: There is no automatic shutdown for a low temperature condition.

"TEMPERATURE WARNING" indicates the temperature measured at location Y has exceeded the warning temperature threshold (X) . If the overheat condition continues, the system will automatically shut down.

If Y is a CPU (CP0 or CP1) sensor, then the temperature h as exceeded the threshold 60 degrees C. If Y is a sensor on the PDB, SCSI backplane, MB0 or MB1, then the ambient temperature threshold (X) has exceeded 53 degrees C.

"TEMPERATURE C RITICAL" indicates that the temperature measured at location Y has exceeded a critical threshold. After this warning message, the system automatically shuts down.

If Y is a CPU (CP0 or CP1) sensor, then the temperature (X) has exceeded the threshold 65 degrees C. If Y is sensor on the PDB, SCSI backplane, MB0 or MB1, then the ambient temperature (X) has exceeded the threshold 58 degrees C.

Also, if the environmental monitoring system detects a temperature problem, it illuminates the temperature light emitting diode (LED) on the status and control panel. If it detects a power supply problem, it lights the power s upply fault LED on the panel. The LEDs located on the power supplies themselves help to further isolate the problem.

Product
Sun Enterprise 250 Server

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