Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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SPARC T3-4 LEDs

The SPARC T3-4 server provides the following LED groupings:

Front Panel & Processor Module LEDs Disk Drive LEDs
Power LEDs Rear I/O Module LEDs

SPARC T3-4 Front Panel & Processor Module LEDs


 

LED Name LED color Description
Locator LED and Locator button
White Enables you to identify a particular server. The LED is controlled using one of the following methods:
  • Issuing the ILOM command /SYS/LOCATE value=Fast_Blink
  • Pressing the Locator button
    This LED provides the following indications:
  • Off - Normal operating state.
  • Fast Blink - The server received a signal as a result of one of the preceding methods and is indicating here I am.
    		•
    Service Action Required LED Amber The service required LED will illuminate when any of the following conditions occur:
  • A fault is detected by the system diagnostics, such as POST or ILOM
  • When a FRU fails, such as a power supply
    • Power/OK LED Off Indicates the system is not running in its normal state. System power might be off or in standby mode. The service processor might be running.
    Green - Steady On Normal operating state, no service action is required
    Green - Slow Blink Indicates that a normal transitory activity is taking place. This could indicate the system diagnostics are running, or that the system is booting.
    Green - Fast Blink Indicates the system is running at a minimum level in standby and is ready to be quickly returned to full function. The service processor is running.
    Power on/off Button Turns the system on and off.
    • If the system is powered off, press once to power on.
    • If the system is powered on, press once to initiate a graceful system shutdown.
    • If the system is powered on, press and hold for 4 seconds to initiate an emergency shutdown.
    System Overtemperature LED Amber - Off Indicates a steady state, no service action is required.
    Amber - Steady On Indicates a temperature failure event has been acknowledged and a service action is required.
    Rear Fan Fault LED Amber - Off Indicates a steady state, no service action is required.
    Amber - Steady On Indicates a fan failure event has been acknowledged and a service action is required on at least one of the fan modules.
    Rear Express Module Fault LED Amber - Off Indicates a steady state, no service action is required.
    Amber - Steady On Indicates a temperature failure event has been acknowledged and a service action is required on at least one of the express modules

     

     

    SPARC T3-4 Disk Drive LEDs

    LED Name Description
    Ready to Remove (Blue) This LED is lit to indicate that a hard drive can be removed safely during a hot-plug operation.
    Service Required (Amber) This LED is lit when the system is running and the hard drive is faulty.
    OK/Activity (Green) On: Read or write activity is in progress
    Off: Drive is idle and available for use

     

     

    SPARC T3-4 Power LEDs

    LED Name Description
    Power Supply Fault LED Lights when power supply is faulty
    Note: - The front and rear panel Service Required LEDs are also lit if the system detects a power supply fault
    Power Supply Power OK LED Lights when power supply DC voltage from the PSU to the server is within tolerance
    Power Supply AC Present LED Lights when AC voltage is applied to power supply
    AC Power Connector LED Lights to indicate that the power cord connected is also plugged into an AC wall socket and is supplying power.
    Note: - This LED will light only after a minimum of two power cords are supplying power to the AC power connectors

     

    SPARC T3-4 Rear I/O Module LEDs

    LED Name Description
    System Locator LED & Button Enables you to identify a particular server. The LED is controlled using one of the following methods:
    • Issuing the ILOM command /SYS/LOCATE value=Fast_Blink
    • Pressing the Locator button
      This LED provides the following indications:
    • Off - Normal operating state.
    • Fast Blink - The server received a signal as a result of one of the preceding methods and is indicating here I am.
    Service Action Required LED The service required LED will illuminate when a fault is detected by the system diagnostics, such as POST or ILOM
    Power OK LED Off: - Indicates the system is not running in its normal state. System power might be off or in standby mode. The service processor might be running.
    Steady On: - Normal operating state
    Slow Blink: - Indicates that a normal transitory activity is taking place. This could indicate the system diagnostics are running, or that the system is booting.
    Fast Blink: - Indicates the system is running at a minimum level in standby and is ready to be quickly returned to full function. The service processor is running.
    Service Processor LED Off: - Indicates AC power might have been connected to the power supplies
    Steady On Green: - Service processor is running in its normal operating state. No service actions required.
    Blink Green: - Service processor is initializing the ILOM software
    Steady On Amber: - A service processor error has occurred and service is required
    Overtemp LED Off: - Indicates a steady state, no service action is required.
    Steady On: - Indicates a temperature failure event has been acknowledged and a service action is required.

     

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