Ethernet Switches & Routers

Reply
New Contributor
Posts: 2
Registered: ‎04-13-2017

Stack Standy Switch - Fan Noise Intermittent

Hi All,

 

I am new to Brocade Networking. 

 

I have configured a stack of 4 x 6610 switches. Standby Master has a Amber light for "MS" on the frontpanel.

 

And intermittently, this Standby makes huge fan noise like as though it is rebooting. And I notice that the switch is fine and it doesn't reboot.

 

Kinldy let me know what details I can share from logs, I would share it for your analysis.

 

Kindly let me know which command to run and what out required from the switches.

 

Thanks,

 

Uma Maheswar

 

Highlighted
Brocade Moderator
Posts: 102
Registered: ‎02-04-2015

Re: Stack Standy Switch - Fan Noise Intermittent

[ Edited ]

Hi Uma,

 

The "MS" LED on the Standby unit in the Stack is Yellow/Amber by default, so this is normal.

 

Regarding the Fan hi rev, You can enable console logging with command "logging console" to capture any log messages on the telnet/ssh session during the incident.

 

You can also run the command "show chassis" to check the status of the Fan and temperature on all units while this is happening.

 

Let us know how you get on.

 

Regards,

Os

Any and all information provided by me is not reviewed, approved or endorsed by Brocade and is provided solely as a convenience for Brocade customers.

All systems and all networks are different and unique. If you have a service affecting network problem, please open a TAC service request for service through Brocade, or through your OEM equipment provider. If this provided you with a solution to this issue, please mark it with the button at the bottom "Accept as solution" .
New Contributor
Posts: 2
Registered: ‎04-13-2017

Re: Stack Standy Switch - Fan Noise Intermittent

Hi Os,

 

thanks for your immediate reply.

 

iam attaching the logs here.

 

=-=-=-=

The stack unit 1 chassis info:

Power supply 1 not present
Power supply 2 (AC - Regular) present, status ok
Model Number: 23-0000144-02
Serial Number: 9PX
Firmware Ver: C
Power supply 2 Fan Air Flow Direction: Front to Back

Fan 1 ok, speed (auto): [[1]]<->2
Fan 2 not present

Fan controlled temperature: 73.0 deg-C

Fan speed switching temperature thresholds:
Speed 1: NM<----->73 deg-C
Speed 2: 68<-----> 90 deg-C (shutdown)

Fan 1 Air Flow Direction: Front to Back
MAC 1 Temperature Readings:
Current temperature : 55.5 deg-C
CPU Temperature Readings:
Current temperature : 59.0 deg-C
--More--, next page: Space, next line: Return key, quit: Control-c                                                                  sensor A Temperature Readings:
Current temperature : 38.5 deg-C
sensor B Temperature Readings:
Current temperature : 48.0 deg-C
sensor C Temperature Readings:
Current temperature : 37.0 deg-C
stacking card Temperature Readings:
Current temperature : 73.0 deg-C
Warning level.......: 87.0 deg-C
Shutdown level......: 90.0 deg-C
Boot Prom MAC : 609c.9f47.56e5
Management MAC: 609c.9f47.56e5

The stack unit 2 chassis info:

Power supply 1 not present
Power supply 2 (AC - Regular) present, status ok
Model Number: 23-0000144-02
Serial Number: 9PZ
Firmware Ver: C
Power supply 2 Fan Air Flow Direction: Front to Back

Fan 1 ok, speed (auto): [[1]]<->2
--More--, next page: Space, next line: Return key, quit: Control-c                                                                  Fan 2 not present

Fan controlled temperature: 73.0 deg-C

Fan speed switching temperature thresholds:
Speed 1: NM<----->73 deg-C
Speed 2: 68<-----> 90 deg-C (shutdown)

Fan 1 Air Flow Direction:Front to Back
MAC 1 Temperature Readings:
Current temperature : 56.0 deg-C
CPU Temperature Readings:
Current temperature : 62.0 deg-C
sensor A Temperature Readings:
Current temperature : 40.5 deg-C
sensor B Temperature Readings:
Current temperature : 48.5 deg-C
sensor C Temperature Readings:
Current temperature : 36.5 deg-C
stacking card Temperature Readings:
Current temperature : 73.0 deg-C
Warning level.......: 87.0 deg-C
Shutdown level......: 90.0 deg-C
--More--, next page: Space, next line: Return key, quit: Control-c                                                                  Boot Prom MAC : 609c.9f47.5309

The stack unit 3 chassis info:

Power supply 1 not present
Power supply 2 (AC - PoE) present, status ok
Model Number: 23-0000142-02
Serial Number: S4S
Firmware Ver: C
Power supply 2 Fan Air Flow Direction: Front to Back

Fan 1 ok, speed (auto): [[1]]<->2
Fan 2 not present

Fan controlled temperature: 69.0 deg-C

Fan speed switching temperature thresholds:
Speed 1: NM<----->78 deg-C
Speed 2: 73<-----> 87 deg-C (shutdown)

Fan 1 Air Flow Direction:Front to Back
MAC 1 Temperature Readings:
Current temperature : 58.0 deg-C
--More--, next page: Space, next line: Return key, quit: Control-c                                                                  CPU Temperature Readings:
Current temperature : 45.0 deg-C
sensor A Temperature Readings:
Current temperature : 31.0 deg-C
sensor B Temperature Readings:
Current temperature : 40.0 deg-C
sensor C Temperature Readings:
Current temperature : 30.5 deg-C
sensor D Temperature Readings:
Current temperature : 27.5 deg-C
stacking card Temperature Readings:
Current temperature : 69.0 deg-C
Warning level.......: 84.0 deg-C
Shutdown level......: 87.0 deg-C
Boot Prom MAC : 609c.9f44.dd96

The stack unit 4 chassis info:

Power supply 1 not present
Power supply 2 (AC - PoE) present, status ok
Model Number: 23-0000142-02
Serial Number: RGN
Firmware Ver: C
--More--, next page: Space, next line: Return key, quit: Control-c                                                                  Power supply 2 Fan Air Flow Direction: Front to Back

Fan 1 ok, speed (auto): [[1]]<->2
Fan 2 not present

Fan controlled temperature: 67.0 deg-C

Fan speed switching temperature thresholds:
Speed 1: NM<----->78 deg-C
Speed 2: 73<-----> 87 deg-C (shutdown)

Fan 1 Air Flow Direction:Front to Back
MAC 1 Temperature Readings:
Current temperature : 54.0 deg-C
CPU Temperature Readings:
Current temperature : 43.0 deg-C
sensor A Temperature Readings:
Current temperature : 30.5 deg-C
sensor B Temperature Readings:
Current temperature : 38.5 deg-C
sensor C Temperature Readings:
Current temperature : 29.0 deg-C
sensor D Temperature Readings:
Current temperature : 25.5 deg-C
stacking card Temperature Readings:
Current temperature : 67.0 deg-C
Warning level.......: 84.0 deg-C
Shutdown level......: 87.0 deg-C
Boot Prom MAC : 609c.9f44.de9a

 

 

=-=-=

this is the error from console logging

 

STACK System:Stack unit 2 Fan speed changed automatically to 2 

 

 

thanks

uma

Brocade Moderator
Posts: 102
Registered: ‎02-04-2015

Re: Stack Standy Switch - Fan Noise Intermittent

Hi Uma,

 

Thanks for sharing the logs.

 

Looking at the output of show chassis and logs, Things seem to be normal. The fan has 2 speed settings "1 & 2" , and the system toggles between them automatically based on the temperature as per below

 

Fan speed switching temperature thresholds:
Speed 1: NM<----->73 deg-C
Speed 2: 68<-----> 90 deg-C (shutdown)

 

So when the temperature goes above 73 deg, the system switches to the higher speed to bring the temp down to 68 or below. Once achieved, the fan moves back to Speed 1.

 

Giving that the current temp of unit 2 is 73.0 deg, any slight increase will cause the switch to increase the fan speed to bring the temp down.

 

stacking card Temperature Readings:
Current temperature : 73.0 deg-C
Warning level.......: 87.0 deg-C
Shutdown level......: 90.0 deg-C

 

This is a quite normal behavior and don't think you need to worry about it.

 

Hope this helps addressing your concern

 

Regards,

Os

Any and all information provided by me is not reviewed, approved or endorsed by Brocade and is provided solely as a convenience for Brocade customers.

All systems and all networks are different and unique. If you have a service affecting network problem, please open a TAC service request for service through Brocade, or through your OEM equipment provider. If this provided you with a solution to this issue, please mark it with the button at the bottom "Accept as solution" .

Join the Community

Get quick and easy access to valuable resource designed to help you manage your Brocade Network.

Click to Register
Download FREE NVMe eBook