Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    FanSpeedLowTh

    Table 1: Alarm Details

    Parameter

    Description

    Code

    fanSpeedLowTh

    Description

    Fan Speed Below Threshold: The fan speed of the cooling module is below the low threshold. For information, see Fan-speed thresholds.

    Entities Affected

    Equipment (see respective table below).

    Possible Cause

    • The cooling module is faulty.
    • The power entry module is faulty.

    Default Severity

    Major

    Service Affecting

    Yes (true).

    Alarm Clearing

    See Clearing a FanSpeedLowTh alarm.

    Related Fault Hierarchy

    Table 2: Equipment

    Entity Name

     

    Fault Indicator

    Equipment

    Indicator

    Status

    fan:<chassis>/<slot>

    Cooling module

    See cooling module specifications in the BTI7800 Series Hardware Overview and Installation Guide.

    Clearing a FanSpeedLowTh Alarm

    Note: Follow all applicable safety requirements as described in the BTI7800 Series Hardware Overview and Installation Guide.

    Note: Refer to the BTI7800 Series Hardware Overview and Installation Guide before reseating (removing and reinstalling) or replacing equipment.

    1. Retrieve fan-speed information for the cooling modules installed in the chassis:
      show environment fanspeed
    2. Ensure that the ambient temperature is within the specified range for chassis operation.

      Note: See the BTI7800 Series Hardware Overview and Installation Guide for information about environmental site requirements.

    3. Check for and clear alarms raised against each PEM, and then check for alarms on the cooling module.
      • If the alarm has cleared, you have completed this procedure.
      • If the alarm does not clear, go to the next step.
    4. Reseat the cooling module, and then check for alarms.
      • If the alarm has cleared, you have completed this procedure.
      • If the alarm does not clear, go to the next step.
    5. Replace the cooling module, and then check for alarms.
      • If the alarm has cleared, you have completed this procedure.
      • If the alarm does not clear, contact your next level of support.

    Modified: 2017-07-06