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    Checking for Power Supply Alarms

    To check for power supply alarms:

    1. Displaying Current Power Supply Alarms
    2. Display Power Supply Error Messages in the System Log File
    3. Display Power Supply Error Messages in the Chassis Daemon Log File

    Displaying Current Power Supply Alarms

    Purpose

    To determine the details of the current power supply alarms.

    Action

    To display power supply alarms, use the following command:

    user@host> show chassis alarms

    Sample Output

    user@host> show chassis alarms
    4 alarms currently active
    Alarm time               Class  Description
    2002-04-08 15:25:12 PDT  Major  Power Supply A 2.5 volt output failed
    2002-04-08 15:25:12 PDT  Major  Power Supply A 5 volt output failed
    2002-04-08 15:25:12 PDT  Major  Power Supply A 3.3 volt output failed
    2002-04-08 15:25:12 PDT  Major  Power Supply A fan failed
    

    Meaning

    The command output displays the alarm date, time, severity level, and description. Table 1 shows the power supply alarm descriptions that you see on the craft interface LCD and the alarms that you see at the CLI. For information about conditions that trigger power supply alarms, see Gather Component Alarm Information.

    Table 1: Power Supply Alarms

    Power Supplies

    Craft Interface LCD
    Short Version

    CLI Long Version

    M5 and M10

    N/A

    Power supply x not providing power

    M7i and M10i

    N/A

    Power supply x not providing power

    M20

    N/A

    Power supply x not providing power

    N/A

    Power supply x 3.3V failed

    N/A

    Power supply x 5V failed

    N/A

    Power supply x 2.5V failed

    M40

    Supply x FAIL

    Power supply x not providing power

    Supply x 3V FAIL

    Power supply x 3.3V failed

    Supply x 5V FAIL

    Power supply x 5V failed

    Supply x 2V FAIL

    Power supply x 2.5V failed

    M40e

    PEM pem-ID Removed

    YELLOW ALARM - PEM pem-ID Removed

    PEM pem-ID High Temp

    RED ALARM - PEM pem-ID High Temperature

    PEM pem-ID Output Fail

    RED ALARM - PEM pem-ID Output Failure

    PEM pem-ID Input Fail

    RED ALARM - PEM pem-ID Input Failure

    M120

    N/A

    YELLOW ALARM - PEM pem-number Removed

    N/A

    RED ALARM - PEM pem-number High Temperature

    N/A

    RED ALARM - PEM pem-number Output Failure

    N/A

    RED ALARM - PEM pem-number Input Failure

    M160

    PEM pem-number Removed

    YELLOW ALARM - PEM pem-number Removed

    PEM pem-number High Temp

    RED ALARM - PEM pem-number High Temperature

    PEM pem-number Output Fail

    RED ALARM - PEM pem-number Output Failure

    PEM pem-number Input Fail

    RED ALARM - PEM pem-number Input Failure

    T320

    PEM pem-number Removed

    YELLOW ALARM - PEM pem-number Removed

    PEM pem-number Over Temp

    RED ALARM - PEM pem-number Over Temperature

    PEM pem-number Output Fail

    RED ALARM - PEM pem-number Output Failure

    PEM pem-number Input Fail

    RED ALARM - PEM pem-number Input Failure

    T640 and T1600

    PEM pem-number Removed

    YELLOW ALARMPEM pem-number Removed

    PEM pem-number Over Temp

    RED ALARMPEM pem-number Over Temperature

    PEM pem-number Output Fail

    RED ALARMPEM pem-number Output Failure

    PEM pem-number Input Fail

    RED ALARMPEM pem-number Input Failure

    TX Matrix and TX Matrix Plus

    PEM pem-number Removed

    YELLOW ALARMPEM pem-number Removed

    PEM pem-number Over Temp

    RED ALARMPEM pem-number Over Temperature

    PEM pem-number Output Fail

    RED ALARMPEM pem-number Output Failure

    PEM pem-number Input Fail

    RED ALARMPEM pem-number Input Failure

    For information about what conditions trigger power supply alarms and their remedy for each router type, see Display the Current Router Alarms.

    To display current power supply alarms and the alarm indicator states, use the following command:

    user@host> show chassis craft-interface

    Sample Output

    user@host> show chassis craft-interface
    Red alarm:     LED on, relay on
    Yellow alarm:  LED off, relay off
    Host OK LED:   On
    Host fail LED: Off
    
    FPCs     0  1  2  3
    -------------------
    Green    *  *  *  *
    Red      .  .  .  .
    
    LCD screen:
         +--------------------+
         |myrouter            |
         |4 Alarms active     |
         |R: Supply A 2v FAIL |
         |R: Supply A 5v FAIL |
         +--------------------+
    

    The command output displays the alarm indicator status and the alarms that display on the craft interface LCD display.

    (For M7i router) Check the red and yellow alarm LEDs on the FIC. Power supply failure or removal triggers an alarm that causes one or both of the LEDs to light.

    Display Power Supply Error Messages in the System Log File

    Purpose

    To determine the details of the power supply error messages in the system log file.

    Action

    To display power supply error messages that are generated in the system log file, use the following command:

    user@host> show log messages | match “power supply”

    Sample Output

    user@host> show log messages | match “power supply”
    Apr  8 14:00:15 myrouter scb CM: ALARM SET: (Major) Power Supply A fan failed
    Apr  8 14:00:15 myrouter alarmd[584]: Alarm cleared: Pwr supply color=RED, class=CHASSIS, myrouter=Power Supply A fan failed
    Apr  8 14:00:18 myrouter scb CM: ALARM CLEAR: Power Supply A fan failed
    Apr  8 14:00:21 myrouter alarmd[584]: Alarm set: Pwr supply color=RED, class=CHASSIS, reason=Power Supply A fan failed
    Apr  8 14:00:23 myrouter scb CM: ALARM SET: (Major) Power Supply A fan failed
    Apr  8 14:05:16 myrouter alarmd[584]: Alarm set: Pwr supply color=RED, class=CHASSIS, reason=Power Supply A fan failed
    

    Meaning

    The messages system log file records the time the failure or event occurred, the severity level, a code, and a message description. Use the show log messages | match “power supply” command to view only power supply error messages. Use this information to diagnose a power supply problem and to let the Juniper Networks Technical Assistance Center (JTAC) know what error messages were generated and the router events prior to the problem. For more information about system log messages, see the Junos OS System Log Messages Reference.

    Display Power Supply Error Messages in the Chassis Daemon Log File

    Purpose

    To determine the details of the power supply error messages in the chassis daemon log file.

    Action

    To display power supply error messages in the chassisd log file, use the following command:

    user@host> show log chassisd | match pem

    Sample Output

    user@host> show log chassisd | match pem
    Jul 15 11:18:59 CMB cmd to PEM#0 [0xf8], Amber LED Off [0x18]
    Jul 15 11:18:59 PEM#0 - Amber LED Off
    Jul 15 11:18:59 CMB cmd to PEM#0 [0xf8], Green LED Off [0x1a]
    Jul 15 11:18:59 PEM#0 - Green LED Off
    Jul 15 11:18:59 CMB cmd to PEM#0 [0xf8], Blue LED Off [0x16]
    Jul 15 11:18:59 PEM#0 - Blue LED Off
    Jul 15 11:18:59 CMB cmd to PEM#1 [0xf9], Amber LED Off [0x18]
    Jul 15 11:18:59 PEM#1 - Amber LED Off
    Jul 15 11:18:59 CMB cmd to PEM#1 [0xf9], Green LED Off [0x1a]
    Jul 15 11:18:59 PEM#1 - Green LED Off
    Jul 15 11:18:59 CMB cmd to PEM#1 [0xf9], Blue LED Off [0x16]
    Jul 15 11:18:59 PEM#1 - Blue LED Off
    Jul 15 11:19:02 PEM#0 added
    Jul 15 11:19:02 reading PEM 0 initial state
    Jul 15 11:19:02 PEM#1 added
    Jul 15 11:19:02 reading PEM 1 initial state
    Jul 15 11:19:18 CHASSISD_PEM_INPUT_BAD: PEM 1 - INPUT FAIL, status bits: 0xf2, check breaker
    Jul 15 11:19:18 CHASSISD_SNMP_TRAP: SNMP trap: FRU failure: jnxFruContentsIndex 2, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName PEM 1, jnxFruType 7, jnxFruSlot 2, jnxFruOfflineReason 2, jnxFruLastPowerOff 0, jnxFruLastPowerOn 
    26221491, jnxFruPowerUpTime 1484
    Jul 15 11:19:23 CHASSISD_PEM_INPUT_BAD: PEM 1 - INPUT FAIL, status bits: 0xf2, check breaker
    Jul 15 11:19:28 CHASSISD_PEM_INPUT_BAD: PEM 1 - INPUT FAIL, status bits: 0xf2, check breaker
    Jul 15 11:19:33 CHASSISD_PEM_INPUT_BAD: PEM 1 - INPUT FAIL, status bits: 0xf2, check breaker
    Jul 15 11:19:38 CHASSISD_PEM_INPUT_BAD: PEM 1 - INPUT FAIL, status bits: 0xf2, check breaker
    

    Meaning

    The chassisd database provides the date, time, and a component status message. The chassisd database is dynamic. It is initialized at router startup and is updated when components are added or removed.

     

    Related Documentation

     

    Published: 2012-08-20