System Won't Start Due To Temperature Thresholds

Asset ID:	1-72-1664265.1
Update Date:	2018-02-15
Keywords:

Solution Type Problem Resolution Sure

Solution 1664265.1 : System Won't Start Due To Temperature Thresholds

Applies to:

Sun Netra 440 Server - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Server not powering on due to high soft shutdown thresholds

SC Alert: TEMP_SENSOR @ C1.P0.T_CORE has exceeded high soft shutdown threshold.
Hardware watchdog enabled
SC unretrieved msg FEB 26 02:49:45 2014 UTC [CRITICAL ALARM is set]
SC unretrieved msg FEB 26 04:23:34 2014 UTC [TEMP_SENSOR @ C1.P0.T_CORE has exceeded high warning threshold.]
SC unretrieved msg FEB 26 04:23:46 2014 UTC [TEMP_SENSOR @ C0.P0.T_CORE has exceeded high warning threshold.]
SC unretrieved msg FEB 26 04:23:59 2014 UTC [SC initiating soft host system shutdown due to fault at C1.P0.T_CORE.]
SC unretrieved msg FEB 26 04:24:01 2014 UTC [TEMP_SENSOR @ C1.P0.T_CORE has exceeded high soft shutdown threshold.]
TEMP_SENSOR @ C0.P0.T_CORE has exceeded high soft shutdown threshold.

Cause

Server is down due to the fan tray (FT0) failure.

sc> showlogs

Log entries since FEB 26 04:19:17
----------------------------------
FEB 26 04:19:17 Hostname: 0004004f: "Indicator SYS.SERVICE is now ON"
FEB 26 04:19:17 Hostname: 0004004f: "Indicator FT0.F0.ACT is now OFF"
FEB 26 04:19:17 Hostname: 0004004f: "Indicator FT0.F0.FAULT is now ON"
FEB 26 04:19:25 Hostname: 00040002: "Host System has Reset"
FEB 26 04:21:32 Hostname: 00040002: "Host System has Reset"
FEB 26 04:23:34 Hostname: 0004006b: "TEMP_SENSOR @ C1.P0.T_CORE has exceeded high warning threshold."
FEB 26 04:23:46 Hostname: 0004006b: "TEMP_SENSOR @ C0.P0.T_CORE has exceeded high warning threshold."
FEB 26 04:23:58 Hostname: 0004006f: "SC initiating soft host system shutdown due to fault at C1.P0.T_CORE."
FEB 26 04:23:59 Hostname: 00040000: "SC Request to Power Off Host."
FEB 26 04:24:00 Hostname: 0004006c: "TEMP_SENSOR @ C1.P0.T_CORE has exceeded high soft shutdown threshold."
FEB 26 04:24:00 Hostname: 0004004f: "Indicator FT1.F0.ACT is now OFF"
FEB 26 04:24:00 Hostname: 0004004f: "Indicator FT2.F0.ACT is now OFF"

Solution

The failed Blower Assembly [FT0-2] should be replaced.

The CPU Core temp has "exceeded high warning threshold" message is a side effect of the fan failure, and not an indication of a fault in the CPU in this case.

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