Fan speed cannot be adjusted

SupperRobin · Created Oct 27, 2018 08:03:45

To view information about built-in fans, run the display fan command. A device has no fan subcard but has built-in fans if both of the following situations occur:

    No fan information is displayed when you run the display device command.
    The Online field displays Present when you run the display fan command.

The following is an example of the command output.

<HUAWEI> display device
S5700-52P-LI-AC's Device status:
Slot Sub Type                Online    Power      Register     Status   Role
-------------------------------------------------------------------------------
0    -    S5700-52P-LI        Present   PowerOn    Registered   Normal   Master

<HUAWEI> display fan
-------------------------------------------------------------------------
Slot FanID   Online    Status    Speed     Mode     Airflow
-------------------------------------------------------------------------
0     1       Present   Normal    40%       AUTO     Side-to-Side This post was last edited by SupperRobin at 2018-10-31 06:12.

Torrent · Created Oct 27, 2018 08:03:46

The fan or fans must operate at full speed when temperature alarms exist. Sometimes, temperature alarms appear due to other reasons and you need to remove the abnormal alarms. After that, the fan speed becomes normal. To be honest it is very difficult to find out this kind of issue, but you did. thanks for sharing us such a good example, I love you! Fan speed cannot be adjusted-2787491-1

This post was last edited by Torrent at 2018-10-31 06:14.

GongXiaochuan · Created Oct 27, 2018 08:04:04

the temperature alarms need to figure out the reason ,otherwise will cause more issue

This post was last edited by GongXiaochuan at 2018-10-30 06:55.

Skay · Created Oct 27, 2018 08:04:16

Thanks for you sharing , about the key information .
1. The slave main board in slot 5 is configured with an incorrect board type. As a result, the configuration file of the CBUS is incorrect and temperature alarms appear.
2. When temperature alarms exist, the fan operates at full speed and the rotating speed cannot be adjusted manually.
3. Set the board type to the correct one and reset the CBUS. After that, temperature alarms disappear and the fan speed is adjusted automatically.

No.9527 · Created Oct 27, 2018 08:06:20

The fast growth of network technologies brings challenges to network security and Quality of Service (QoS). ACL is a security policy that is enforced on networks to prevent the following problems:

To prevent information leaks and unauthorized access of resources on key servers of an enterprise network
To prevent viruses on the Internet from entering and spreading on the enterprise intranet
To prevent random services from occupying network bandwidth, thereby guaranteeing bandwidth for delay-sensitive services such as voice and video

This post was last edited by No.9527 at 2018-10-31 03:50.

littlestone · Created Oct 27, 2018 08:06:30

• check the configuration of the DHCP server and the associated device port to see if it is configured correctly. And check the steps as following:

whether the connection between AP and AC is good;

whether the APs have created management VLANs on each device that is connected to the AC;

This post was last edited by littlestone at 2018-10-30 01:41.

faysalji · Created Oct 27, 2018 17:31:32

Thanks for sharing the issue

faysalji · Created Oct 27, 2018 17:32:10

It's now easy to handle this issue

Mysterious.color · Created Oct 28, 2018 05:00:47

it's noisy problem when you have high temp alarm for other reasons

Fan speed cannot be adjusted

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Fan speed cannot be adjusted

Issue Description

Alarm Information

Handling Process

Root Cause

Suggestions

Third Party’s Trade Secret

My Followers