Sangeeth,The first thing that

bssangeeth · ‎07-09-2013

Hi everybody,

The output shown below is the error logs which I am getting continuously on my Nexus 7010 console.

Can anyone suggest me why it is happening. And in show environment temperature command I can see all the modules are perfect.

WT-EC4-N7K-DC-CORE2# sh logging last 200

2013 Jul 6 11:25:27 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPMINALRM: Xbar-3 reported minor temperature alarm. Sensor=2 Temperature=43 MinThreshold=42

2013 Jul 6 11:25:28 WT-EC4-N7K-DC-CORE2 %TACACS-4-TACACS_WARNING: Problem during name-lookup. Error:-2(host nor service provided, or not known)

2013 Jul 6 11:26:27 WT-EC4-N7K-DC-CORE2 last message repeated 1 time

2013 Jul 6 11:26:27 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPMINALRM: Xbar-4 reported minor temperature alarm. Sensor=2 Temperature=43 MinThreshold=42

2013 Jul 6 11:26:29 WT-EC4-N7K-DC-CORE2 %TACACS-4-TACACS_WARNING: Problem during name-lookup. Error:-2(host nor service provided, or not known)

2013 Jul 6 11:31:30 WT-EC4-N7K-DC-CORE2 last message repeated 1 time

2013 Jul 6 11:31:30 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPOK: Xbar-4 recovered from minor temperature alarm. Sensor=2 Temperature=41 MinThreshold=42

2013 Jul 6 11:32:31 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from minor temperature alarm. Sensor=2 Temperature=41 MinThreshold=42

2013 Jul 6 11:35:33 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPMINALRM: Xbar-3 reported minor temperature alarm. Sensor=2 Temperature=43 MinThreshold=42

2013 Jul 6 11:35:34 WT-EC4-N7K-DC-CORE2 %TACACS-4-TACACS_WARNING: Problem during name-lookup. Error:-2(host nor service provided, or not known)

2013 Jul 6 11:37:34 WT-EC4-N7K-DC-CORE2 last message repeated 1 time

2013 Jul 6 11:37:34 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPMINALRM: Xbar-4 reported minor temperature alarm. Sensor=2 Temperature=43 MinThreshold=42

2013 Jul 6 11:37:35 WT-EC4-N7K-DC-CORE2 %TACACS-4-TACACS_WARNING: Problem during name-lookup. Error:-2(host nor service provided, or not known)

2013 Jul 6 11:39:35 WT-EC4-N7K-DC-CORE2 last message repeated 1 time

2013 Jul 6 11:39:35 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from minor temperature alarm. Sensor=2 Temperature=41 MinThreshold=42

2013 Jul 6 11:39:35 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPOK: Xbar-4 recovered from minor temperature alarm. Sensor=2 Temperature=41 MinThreshold=42

2013 Jul 6 11:47:39 WT-EC4-N7K-DC-CORE2 %PLATFORM-2-MOD_TEMPMINALRM: Xbar-3 reported minor temperature alarm. Sensor=2 Temperature=43 MinThreshold=42

WT-EC4-N7K-DC-CORE2# sh environment temperature xbar 3

Temperature:

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

Module Sensor MajorThresh MinorThres CurTemp Status

(Celsius) (Celsius) (Celsius)

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

xbar-3 Intake (s2) 60 42 38 Ok

xbar-3 Crossbar(s3) 105 95 71 Ok

WT-EC4-N7K-DC-CORE2# sh environment temperature xbar 4

Temperature:

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

Module Sensor MajorThresh MinorThres CurTemp Status

(Celsius) (Celsius) (Celsius)

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

xbar-4 Intake (s2) 60 42 39 Ok

xbar-4 Crossbar(s3) 105 95 74 Ok

WT-EC4-N7K-DC-CORE2#

Thanks in Advance,

Sangeeth.

sean_evershed · ‎07-09-2013

According to the logs XBAR 3 & 4 are briefly overheating and then cooling down as the fans and air-con kick in.

I would have a look at the air flow around your 7010. This switch has front-to-back air flow. Therefore it may be sucking in hot air from devices in racks nearby that are generating heat.

Also check that you have sufficient clearance around your switch as specified by the guide below.

http://www.cisco.com/en/US/docs/switches/datacenter/hw/nexus7000/installation/guide/n7k_sys_specs.html#wp1039703

Don't forget to rate all helpful posts.

bssangeeth · ‎07-09-2013

Hi Sean,

Your observation is correct I agree. But we have sufficient space around the switch. And more over if it is sucking hot air which is coming from other devices why it is not effecting other xbar modules. And in older logs I found that xbar-5 also giving the same minor temperature alarm and later it automatically recovered. No idea how it got recovered. Can you explain it and please share if you have any other suggestion which may hit my question.

Thanks a lot for your time.

Regards,

Sangeeth BS

ntutino1487 · ‎10-08-2014

I was getting this alert on our Nexus 7010 as shown below. I cleaned the filter on the front of the Nexus which was very dusty and dirty. After that I never received another temperature alert. This alert was coming up about every 10 to 15 minutes.

%PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from minor temperature alarm. Sensor=3 Temperature=78 MinThreshold=95

I hope this helps.

InayathUlla Sharieff · ‎10-08-2014

Sangeeth,

The first thing that you will want to verify is the physical condition of
the switch. The Nexus 7010 chassis used a front-to-back airflow model. see
the diagram below for a reference:

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/hw/nexus7000/installation/guide/n
7k_hig_book/n7k_sys_specs.html#wp1039713

You will want to ensure that there is nothing blocking the intake or
exhaust vent of the switch. Also look at the front intake fan to see if
there is dust, or some other material that has accumulated that could be
impeding air intake.
Also verify if there is a device that is exhausting hot air towards the
intake of the switch.

2)
In case if you already checked the colling you can give the below try:-
Please remove and thoroughly clean the air filter located on the front of the Nexus 7010.
Find below the instructions for cleaning the Nexus 7010 air filter:
Cleaning or Replacing the Air Filter for the Cisco Nexus 7010 Chassis
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/hw/nexus7000/installation/guide/n
7k_hig_book/n7k_replacing.html#wp1454429

HTH
Regards
Inayat
***********Please rate if this info is helpfull.*********

javierfmb · ‎07-22-2015

Thanks, I had this alarm in the Neus 7k:

2015 Jul 13 18:31:20 BD01NEX7010 %PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from m
inor temperature alarm. Sensor=3 Temperature=94 MinThreshold=95

I removed and cleaned the air filter located on the front of the Nexus 7010 and now is ok.

nehayadav0706 · ‎08-08-2017

Hi ,

I was also facing the same issue . Below are the logs:

"

2017 Mar 8 13:28:58 # %PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from minor temperature alarm. Sensor=3 Temperature=83 MinThreshold=95"

#Show env temperature

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

Module Sensor MajorThresh MinorThres CurTemp Status

(Celsius) (Celsius) (Celsius)

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

xbar-1 Intake (s2) 60 42 28 Ok

xbar-1 Crossbar(s3) 105 95 68 Ok

xbar-2 Intake (s2) 60 42 31 Ok

xbar-2 Crossbar(s3) 105 95 71 Ok

xbar-3 Intake (s2) 60 42 32 Ok

xbar-3 Crossbar(s3) 105 95 87 Ok

xbar-4 Intake (s2) 60 42 30 Ok

xbar-4 Crossbar(s3) 105 95 88 Ok

xbar-5 Intake (s2) 60 42 28 Ok

xbar-5 Crossbar(s3) 105 95 98 MinorAlarm

Crossbar alarms are usually the first to trigger when the filter causes high temperature.
Action Plan:

Make sure nothing is blocking airflow for the Nexus, especially if they are close to each other in the rack ( closed rack, any part behind the air flows )
- Clean the filter of the chassis. Processes is documented below
- http://www.cisco.com/c/en/us/td/docs/switches/datacenter/hw/nexus7000/installation/guide/n7k_hig_book/n7k_replacing.html#pgfId-1454429 under Cleaning or Replacing the Air Filter for the Cisco Nexus 7010 Chassis
- If possible replace the air filter with a new/clean one.
- In my case after cleaning the filter issue resolved.

Thanks

Neha

Temperature alarm on Nexus 7010 console “%PLATFORM-2-MOD_TEMPOK: Xbar-3 recovered from minor temperature alarm.”