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    Display HCM Status and Mastership

    By default, the HCM in the slot labeled HCM0 is the master.

    To display the redundant HCM status and mastership:

    1. Check the HCM LEDs
    2. Check the HCM Environmental Status

    Check the HCM LEDs

    Purpose

    To determine HCM mastership by checking the HCM LEDs.

    Action

    To see which HCM is functioning as master, look at the LEDs on the HCM faceplate. On the HCM faceplate, two LEDs indicate HCM status—a green PWR LED and a blue MSTR LED. Table 1 describes the LED states.

    Table 1: HCM LEDs

    Label

    Color

    State

    Description

    PWR

    Green

    On steadily

    HCM is functioning normally.

      

    Blinking

    HCM is starting up.

    MSTR

    Blue

    On steadily

    HCM is master.

    Check the HCM Environmental Status

    Purpose

    To determine HCM mastership by checking the HCM environmental status.

    Action

    To check the HCM environmental status and view which HCM is functioning as master, use the following command:

    user@host>show chassis environment hcm

    Sample Output

    user@host> show chassis environment hcm
    HCM 0 status:
    			 State 																		Online Master
    			 FPGA Revision 														 27
    		  HCM 1 status:
    			 State 																		Online Standby
    			 FPGA Revision 														 27
    

    Meaning

    The command output shows that both HCMs (HCM0 and HCM1) are online. HCM0 is functioning as master, and HCM1 is functioning as standby. The command output also gives the Field Programmable Gate Array (FPGA) revision level. The FPGA is a gate on the chip used in the HCM.

     

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    Published: 2012-08-20