About Indicators and Buttons

Indicator LEDs are provided throughout the chassis to help you identify the operational states of various components. Locator and Power buttons are also provided on the chassis that enable you to initiate a specific action. Indicators may exhibit one of five states: Off, Steady On, Slow Blink (on/off cycle at 1 Hz), Fast Blink (on/off cycle at 4 Hz), and Standby Blink (0.1 second on, 2.9 seconds off). Note that not all indicators use all states.

Indicators and buttons are located on these components:

The buttons and indicators for each component are discussed in more detail in related topics.

Button and Indicator Features

Button or Indicator

Color

Description

Locator indicator (chassis and blade)

White

This LED provides these indications:

  • Fast Blink – Helps you locate a specific system in a data center.

  • Off – Normal operating state.

You can illuminate the Locator indicator either by executing a software command on the CMM, or by momentarily pressing the associated Locator button.

Locator button (chassis and blade)

This button provides these functions:

  • Quick press – Lights the Locator indicator.

  • Four second or more press of the Front or Rear Indicator Module (FIM/RIM) Locator button – CMM enacts a chassis-wide Lamp Test, which causes the indicators on all replaceable components (FRUs and CRUs), front and rear, to light as long as the Locator button is pressed. Once the Locator button is released, all component indicators return to their previous state.

Service Action Required indicator (chassis, blade, FRU/CRU)

Amber

This LED provides these indications:

  • Steady On – Indicates that the FRU or CRU, or a FRU or CRU that a module contains, is broken and needs to be replaced. The LED remains Steady On as long as any Service Action Required indicator on any FRU or CRU in the chassis is lit.On the FIM or RIM, this LED provides a summary of all other Service Action Required FRU and CRU indicators in the chassis.

  • Off – Service is not required.

OK indicator (chassis, blade, FRU/CRU)

Green

This LED provides these indications:

  • Slow Blink – Indicates that the unit is changing state (for example, booting).

  • Standby Blink – Indicates that the unit is being managed. The unit is not operational, but it is ready to be activated. On the FIM or RIM, this LED indicates that the CMM has begun initialization. When the CMM has completed its initialization and has begun to actively manage the chassis, the OK indicator transitions to the Standby Blink state. At this state, only the chassis summary indicators and CMM indicators are active.

  • Steady On – Indicates that the unit is operating normally.

  • Off – Remains off before the chassis has powered on and before the chassis has reached the Standby Blink state.

Ready-to-Remove indicator (blade, FRU/CRU)

Blue

This LED provides these indications:

  • Steady On – The unit has been prepared properly with software commands and is ready to remove from the chassis.

  • Off – The unit is not ready to remove from the chassis.

Power button (chassis)

Located on the FIM and RIM, this button powers on the chassis that is in the standby state, as indicated by the OK indicator being in the Standby Blink state.

The chassis powers on by default when AC power is applied. The only time you will need to press the Power button is if the Administrator has specifically disabled the automatic power-on feature, or if the chassis has been powered off. Therefore, it is unlikely that you will find the OK LED in the Standby Blink state.

The chassis cannot be turned off by pressing the Power button. Only an authorized Administrator, logged in to the active CMM, can turn off the chassis by issuing a CMM software command.

Power button (blade)

Located on the front of the blade, this button provides these functions:

  • In a powered-on blade, when pressed and immediately released, the button invokes a graceful (OS aware) shutdown of the blade. If you press and immediately release the button again, the OS will be restarted.

  • In a powered-on blade, when pressed and held for four seconds, the button invokes a forced shutdown of the blade with no OS notification. If you press and immediately release the button again, the OS will be restarted.

  • In a powered-off blade, when pressed and immediately released, the blade is brought online and the OS is started.

Attention button (NEM) (EM; Sun Blade 8000 Chassis only)

Located on the Network Express Module and ExpressModule (Sun Blade 8000 Chassis only), this button enables you to activate (if inserting) or prepare to remove (if removing) a NEM or EM during a hot-plug operation.

DC-OK (power supply module)

Green

Located on the power supply module, this LED provides these indications:

  • Steady On – Lights when the power supply is delivering regulated 48-volt power to the midplane.

  • Off – Indicates that DC power is off (for example, this LED is off when the chassis power is off).

AC-OK (power supply module)

Green

Located on the power supply module, this LED provides these indications:

  • Steady On – Lights when the power supply is receiving the proper 220-volts AC line voltage.

  • Off – Indicates that there is no power to the power supply module (for example, this LED is off when a power cord is not plugged in).

Active (CMM)

Green

Located on the CMM, this LED provides these indications:

  • Steady On – Lights when the associated CMM is the active CMM.

  • Off – Indicates that this CMM is the standby CMM.

Ethernet Link (CMM)

Green

Located on the CMM, this LED provides these indications:

  • Steady On – Lights when the external Ethernet connection is active.

  • Off – Indicates that there is no external Ethernet connection.

Ethernet Activity (CMM)

Amber

Blink – Indicates that there is Ethernet activity.