High Temperature issues (Nexus 7010 module N7K-M224XP-23L)

[coolstm01]

Hi,
I have caused the N7K-M224XP-23L module is a hot issue.

This happens loud noise(fan operating) in the nexus with the follwing log 

It is very frequently

2015 Dec 9 10:40:31 N7K %PLATFORM-2-MOD_TEMPMINALRM: Module-10 reported minor temperature alarm. Sensor=31 Temperature=106 MinThreshold=105
2015 Dec 9 10:41:32 N7K %PLATFORM-2-MOD_TEMPOK: Module-10 recovered from minor temperature alarm. Sensor=31 Temperature=102 MinThreshold=105

Perhaps,31sensor is overheating, it seems that the fan is operating

Have you ever encountered symptoms such as us?

or solution, Please

Thanks

Nexus information is as below

show module

Mod Ports Module-Type Model Status
--- ----- ----------------------------------- ------------------ ----------
1 48 10/100/1000 Mbps Ethernet XL Module N7K-M148GT-11L ok
3 48 1000 Mbps Optical Ethernet XL Modul N7K-M148GS-11L ok
4 48 1000 Mbps Optical Ethernet XL Modul N7K-M148GS-11L ok
5 0 Supervisor Module-2 N7K-SUP2E active *
6 0 Supervisor Module-2 N7K-SUP2E ha-standby
9 24 10 Gbps Ethernet Module N7K-M224XP-23L ok
10 24 10 Gbps Ethernet Module N7K-M224XP-23L ok

show environment power

Power Actual Total
Supply Model Output Capacity Status
(Watts ) (Watts )
------- ------------------- ----------- ----------- --------------
1 N7K-AC-6.0KW 954 W 6000 W Ok
2 N7K-AC-6.0KW 972 W 6000 W Ok
3 N7K-AC-6.0KW 924 W 6000 W Ok

Actual Power
Module Model Draw Allocated Status
(Watts ) (Watts )
------- ------------------- ----------- ----------- --------------
1 N7K-M148GT-11L 298 W 400 W Powered-Up
3 N7K-M148GS-11L 304 W 400 W Powered-Up
4 N7K-M148GS-11L 293 W 400 W Powered-Up
5 N7K-SUP2E 131 W 265 W Powered-Up
6 N7K-SUP2E 137 W 265 W Powered-Up
9 N7K-M224XP-23L 637 W 795 W Powered-Up
10 N7K-M224XP-23L 640 W 795 W Powered-Up
Xb1 N7K-C7010-FAB-2 46 W 80 W Powered-Up
Xb2 N7K-C7010-FAB-2 45 W 80 W Powered-Up
Xb3 N7K-C7010-FAB-2 47 W 80 W Powered-Up
Xb4 N7K-C7010-FAB-2 47 W 80 W Powered-Up
Xb5 N7K-C7010-FAB-2 44 W 80 W Powered-Up
fan1 N7K-C7010-FAN-S 198 W 720 W Powered-Up
fan2 N7K-C7010-FAN-S 198 W 720 W Powered-Up
fan3 N7K-C7010-FAN-F 16 W 120 W Powered-Up
fan4 N7K-C7010-FAN-F 16 W 120 W Powered-Up

N/A - Per module power not available

show environment temperature module 10
Power Usage Summary:
--------------------
Power Supply redundancy mode (configured) PS-Redundant
Power Supply redundancy mode (operational) PS-Redundant

Total Power Capacity (based on configured mode) 12000 W
Total Power of all Inputs (cumulative) 18000 W
Total Power Output (actual draw) 2850 W
Total Power Allocated (budget) 5400 W
Total Power Available for additional modules 6600 W

--------------------------------------------------------------------
Module Sensor MajorThresh MinorThres CurTemp Status
(Celsius) (Celsius) (Celsius)
--------------------------------------------------------------------
10 MAC0Sn0(s2) 115 105 43 Ok
10 MAC0Sn1(s3) 115 105 42 Ok
10 MAC0-Buf0(s4) 115 105 48 Ok
10 MAC0-Buf1(s5) 115 105 43 Ok
10 MAC0-Buf2(s6) 115 105 51 Ok
10 MAC0-Buf3(s7) 115 105 60 Ok
10 MAC1Sn0(s8) 115 105 40 Ok
10 MAC1Sn1(s9) 115 105 41 Ok
10 MAC1-Buf0(s10) 115 105 44 Ok
10 MAC1-Buf1(s11) 115 105 72 Ok
10 MAC1-Buf2(s12) 115 105 61 Ok
10 MAC1-Buf3(s13) 115 105 51 Ok
10 Fwd0Sn0(s14) 115 105 85 Ok
10 Fwd0Sn1(s15) 115 105 85 Ok
10 Fwd1Sn0(s16) 115 105 98 Ok
10 Fwd1Sn1(s17) 115 105 98 Ok
10 Fwd2Sn0(s18) 115 105 76 Ok
10 Fwd2Sn1(s19) 115 105 76 Ok
10 Fwd3Sn0(s20) 115 105 68 Ok
10 Fwd3Sn1(s21) 115 105 68 Ok
10 QEng0Sn0(s22) 115 105 75 Ok
10 QEng0Sn1(s23) 115 105 75 Ok
10 QEng1Sn0(s24) 115 105 92 Ok
10 QEng1Sn1(s25) 115 105 92 Ok
10 QEng2Sn0(s26) 115 105 67 Ok
10 QEng2Sn1(s27) 115 105 67 Ok
10 QEng3Sn0(s28) 115 105 68 Ok
10 QEng3Sn1(s29) 115 105 68 Ok
10 Crossbar(s30) 115 105 52 Ok
10 LkU0Sn0(s31) 115 105 105 MinorAlarm <- This point( The fan operation threshold being exceeded)

[Rajeshkumar Gatti · Accepted solution]

If your environment has adequate cooling and there isn't anything that could block airflow then I suspect that the module could be an issue. You can move the module around into a different slot(if that is possible) and see if the issue follows the module and then maybe open a TAC case with your analysis.

-Raj

[Jorge Luis Covenas Chiroque]

Hi, I have the same issue with sensor 31. All the time we get messages  from crossing minor alarm threshold. We already check for: cleaning air filter, check for non blocking of airflow and adequate cooling of room.

We are working with 6.2(12) and have a TAC case but they cannot find anything related to bug, just suggest to upgrade to 6.2(16) but it cannot be sure if this solve the issue.

Any ideas?

Jorge

[Jorge Luis Covenas Chiroque]

Hi all,

Room temperature is about 17°C and we double check to airflow and clearance as specified in datasheet.

I have a TAC case and they suggested environment issues but we have other Nexus working well in same room but different rack. I thing there is a bug related because other Nexus running 6.2(12) has the same minor alarms for s31 in slot 9.

Any help would be very much appreciated.

Regards.

[jorge.olivera]

Hi Jorge Luis.

I have the same problem with sensor 31.
Did you get any response on the solution?