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Multiple Fans Reported as Failed on T5220 & T5240 (Doc ID 1490986.1)

Last updated on AUGUST 10, 2018

Applies to:

Sun SPARC Enterprise T5140 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5120 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5220 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise T5240 Server - Version All Versions and later
Information in this document applies to any platform.

Symptoms

Fan removal or failure may occur on multiple fans or SP powers off HOST and on HOST power up [or while running Snapshot (normal mode data_set=full)] SP powers off HOST quickly.

Example 1 - Fan module issue Only (FMx)

Post Status: Passed all devices
ID Time FRU Class Fault
1 Jun 21 04:27:55 /SYS/FANBD0/FM1 SP detected fault: Required FAN at FANBD0/FM1 is not present.< ---------
2 Jun 15 15:38:47 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F0 has reached low non-recoverable threshold.
3 Jun 15 15:38:42 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F1 has reached low non-recoverable threshold.
4 Jun 15 15:38:57 /SYS/FANBD0/FM0 SP detected fault: TACH at /SYS/FANBD0/FM0/F0 has reached low non-recoverable threshold.
5 Jun 15 15:38:53 /SYS/FANBD0/FM0 SP detected fault: TACH at /SYS/FANBD0/FM0/F1 has reached low non-recoverable threshold.
6 Jun 21 04:27:11 /SYS/FANBD0/FM2 SP detected fault: Required FAN at FANBD0/FM2 is not present. < ---------
sc>
console msg 20min after 2nd reset Post Status: Passed all devices
ID Time FRU Class Fault
1 Jun 21 04:27:55 /SYS/FANBD0/FM1 SP detected fault: Required FAN at FANBD0/FM1 is not present. < ----------
2 Jun 15 15:38:47 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F0 has reached low non-recoverable threshold.
3 Jun 15 15:38:42 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F1 has reached low non-recoverable threshold.
4 Jun 15 15:38:57 /SYS/FANBD0/FM0 SP detected fault: TACH at /SYS/FANBD0/FM0/F0 has reached low non-recoverable threshold.

Fault event description:Faulty fan module is at location /SYS/FANBD0/FM2 < ----------
SunHwTrapFanFault
sunHwTrapSystemIdentifier =
sunHwTrapChassisId = BEL0845FTL
sunHwTrapProductName = T5240
sunHwTrapSuspectComponentName = /SYS/FANBD0/FM2
sunHwTrapFaultClass = system.fault
sunHwTrapFaultCertainty = 100
sunHwTrapFaultMessageID =
sunHwTrapFaultUUID =

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From example 1 - the issue is with Fan(s) module 1 and 2, they should be replaced and no other components!

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Video - How to replace T5120/T5220 Fan module (1:26)
Example 2 - Fan board issue (FANBDx)

##### Tx000/showfaults_-v #####
Last POST Run: Wed Jun 3 13:33:38 2015

Post Status: Passed all devices
ID Time FRU Class Fault
1 Jun 03 13:27:43 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F0 has reached low non-recoverable threshold.
2 Jun 03 13:27:30 /SYS/FANBD0/FM1 SP detected fault: TACH at /SYS/FANBD0/FM1/F1 has reached low non-recoverable threshold.
3 Jun 03 13:28:10 /SYS/FANBD0/FM0 SP detected fault: TACH at /SYS/FANBD0/FM0/F0 has reached low non-recoverable threshold.
4 Jun 03 13:27:55 /SYS/FANBD0/FM0 SP detected fault: TACH at /SYS/FANBD0/FM0/F1 has reached low non-recoverable threshold.

Jun 03 13:27:11: IPMI |critical: "ID = 3bb : 06/03/2015 : 13:27:11 : Fan : /FB0/FM0/F0/TACH : Lower Non-recoverable going low : reading 0 <= threshold 2400 RPM"
Jun 03 13:27:14: IPMI |critical: "ID = 3bc : 06/03/2015 : 13:27:14 : Fan : /FB0/FM1/F1/TACH : Lower Non-recoverable going low : reading 0 <= threshold 2400 RPM"

SYS/FANBD0/FM0/F0 TACH failed (0rpm )
SYS/FANBD0/FM0/F1 TACH failed (0rpm )
SYS/FANBD0/FM1/F0 TACH failed (0rpm )
SYS/FANBD0/FM1/F1 TACH failed (0rpm )

--------------------------------------------------------------------------------
Fan Status:
--------------------------------------------------------------------------------
Fans (Speeds Revolution Per Minute):
Sensor Status Speed Warn Low
--------------------------------------------------------------------------------
/SYS/FANBD0/FM0/F0/TACH FAILED 0 4000 2400
/SYS/FANBD0/FM0/F1/TACH FAILED 0 4000 2400
/SYS/FANBD0/FM1/F0/TACH FAILED 0 4000 2400
/SYS/FANBD0/FM1/F1/TACH FAILED 0 4000 2400
/SYS/FANBD0/FM2/F0/TACH FAILED 0 4000 2400
/SYS/FANBD0/FM2/F1/TACH FAILED 0 4000 2400

Component : /SYS/FANBD0
Time Stamp : 2015-06-19T06:14:10-04:00
New_Status : 0x10 (PROXIED FAULT)
Old_Status : 0x10 (PROXIED FAULT)
Initiator : SCAPP
Component : 49

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From example 2 - the issue is reported with fan board 0, (FANBD0), and only FANBD0 should be replaced!

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Example 3: both Fan boards failed
                                                                                                                                                                                                                                                                                                                                                                                Tx000/showenvironment  
/SYS/LOCATE                    /SYS/SERVICE                   /SYS/ACT
OFF                            ON                             ON

/SYS/PS_FAULT                  /SYS/TEMP_FAULT                /SYS/FAN_FAULT
OFF                            OFF                            ON

Sensor                         Status       Speed     Warn      Low
/SYS/FANBD0/FM0/F0/TACH        FAILED           0     4000     2400
/SYS/FANBD0/FM0/F1/TACH        FAILED           0     4000     2400
/SYS/FANBD0/FM1/F0/TACH        FAILED           0     4000     2400
/SYS/FANBD0/FM1/F1/TACH        FAILED           0     4000     2400
/SYS/FANBD0/FM2/F0/TACH        FAILED           0     4000     2400
/SYS/FANBD0/FM2/F1/TACH        FAILED           0     4000     2400
/SYS/FANBD1/FM0/F0/TACH        FAILED           0     4000     2400
/SYS/FANBD1/FM0/F1/TACH        FAILED           0     4000     2400
/SYS/FANBD1/FM1/F0/TACH        FAILED           0     4000     2400
/SYS/FANBD1/FM1/F1/TACH        FAILED           0     4000     2400

        /SYS/FANBD0  Dialog             5017695-03  E03NTD               109 (36 degrees C)  0x10 (PROXIED FAULT)
        /SYS/FANBD1  FOXCONN            5017695-04  E09NE8               94 (21 degrees C)   0x10 (PROXIED FAULT)


Component     : /SYS/FANBD0
Time Stamp    : Thu, Dec 21 2000 12:17:06 GMT
New_Status    : 0x10 (PROXIED FAULT)
Old_Status    : 0x10 (PROXIED FAULT)
Initiator     : SCAPP
Component     : 50
Message       : TACH at /SYS/FANBD0/FM2/F0 has exceeded low non-recoverable threshold.

Component     : /SYS/FANBD1
Time Stamp    : Thu, Dec 21 2000 12:18:14 GMT
New_Status    : 0x10 (PROXIED FAULT)
Old_Status    : 0x10 (PROXIED FAULT)
Initiator     : SCAPP
Component     : 53
Message       : TACH at /SYS/FANBD1/FM1/F0 has exceeded low non-recoverable threshold.


##### Tx000/showfaults_-v   #####
Last POST Run: Mon Oct 23 13:57:23 2000

Post Status: Passed all devices
 ID Time                           FRU               Class             Fault
  1 Dec 21 12:16:01                /SYS/FANBD0/FM0                     SP detected fault: TACH at /SYS/FANBD0/FM0/F0 has exceeded low non-recoverable threshold.
  2 Dec 21 12:15:57                /SYS/FANBD0/FM0                     SP detected fault: TACH at /SYS/FANBD0/FM0/F1 has exceeded low non-recoverable threshold.
  3 Dec 21 12:16:34                /SYS/FANBD0/FM1                     SP detected fault: TACH at /SYS/FANBD0/FM1/F0 has exceeded low non-recoverable threshold.
  4 Dec 21 12:16:30                /SYS/FANBD0/FM1                     SP detected fault: TACH at /SYS/FANBD0/FM1/F1 has exceeded low non-recoverable threshold.
  5 Dec 21 12:17:06                /SYS/FANBD0/FM2                     SP detected fault: TACH at /SYS/FANBD0/FM2/F0 has exceeded low non-recoverable threshold.
  6 Dec 21 12:17:02                /SYS/FANBD0/FM2                     SP detected fault: TACH at /SYS/FANBD0/FM2/F1 has exceeded low non-recoverable threshold.
  7 Dec 21 12:17:41                /SYS/FANBD1/FM0                     SP detected fault: TACH at /SYS/FANBD1/FM0/F0 has exceeded low non-recoverable threshold.
  8 Dec 21 12:17:38                /SYS/FANBD1/FM0                     SP detected fault: TACH at /SYS/FANBD1/FM0/F1 has exceeded low non-recoverable threshold.
  9 Dec 21 12:18:14                /SYS/FANBD1/FM1                     SP detected fault: TACH at /SYS/FANBD1/FM1/F0 has exceeded low non-recoverable threshold.
 10 Dec 21 12:18:10                /SYS/FANBD1/FM1                     SP detected fault: TACH at /SYS/FANBD1/FM1/F1 has exceeded low non-recoverable threshold.                                                                                                             ################################################################################

From example 3 - The issue is with both Fan(s) board 0 and 1, in this case both fan boards and connector board

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Cause

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