1.3 Using LEDs to Identify the State of Devices

The server provides the following groups of LEDs:

• Front and Rear Panel LEDs

• Hard Drive LEDs

• Power Supply LEDs

• Ethernet Port LEDs

These LEDs provide a quick visual check of the state of the system.

1.3.1 Front and Rear Panel LEDs

The seven front panel LEDs (Location of the Bezel Server Status and Alarm Status Indicators) are located in the upper left corner of the server chassis. Three of these LEDs are also provided on the rear panel (Rear Panel Connectors, LEDs, and Features on the Sun Netra T5440 Server).

Figure 1-2  Location of the Bezel Server Status and Alarm Status Indicators

Figure Legend

1 Locator LED and Button

2Fault LED

3Activity LED

4Power OK LED

5User (amber) Alarm Status Indicator

6Minor (amber) Alarm Status Indicator

7Major (red) Alarm Status Indicator

8Critical (red) Alarm Status Indicator

Figure 1-3  Rear Panel Connectors, LEDs, and Features on the Sun Netra T5440 Server

Figure Legend

1 PCI Slots 0-3: left to right: PCI-X Slot 0 (25 W maximum load), PCI-X Slot 1 (25 W maximum load), PCIe Slot 2 (25 W maximum load), PCIe Slot 3 (25 W maximum load)

2PCI (or XAUI) Slots 4-9: left to right: PCIe or XAUI Slot 4 (15 W maximum load), PCIe or XAUI Slot 5 (15 W maximum load), PCIe Slot 6 (15 W maximum load), PCIe Slot 7 (15 W maximum load), PCIe Slot 8 (15 W maximum load), PCIe Slot 9 (15 W maximum load)

3Service Processor Serial Management Port

4Service Processor Network Management Port

5Gigabit Ethernet Ports left to right: NET0, NET1, NET2, NET3

6Power Supply 0 LEDs top to bottom: Output On LED (green), Service Required LED (yellow), Input Power OK LED (green)

7Power Supplies (PSs): left to right: PS 0, PS 1, PS 2, PS 3

8Rear left and right USB ports

9TTYA Serial Port

Front and Rear Panel LEDs  lists and describes the front and rear panel LEDs.

Table 1-2  Front and Rear Panel LEDs 

LED Location Color Description Locator LED and Butto n Front upper left and rear center White Enables you to identify a particular server. The LED is activated using one of the following methods: Issuing the setlocator on or off command. Pressing the button to toggle the indicator on or off. 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. F ault LED Front upper left and rear center Amber If on, indicates that service is required. The ALOM CMT CLI showfaults command provides details about any faults that cause this indicator to be lit. A ctivity LED Front upper left Green On – Drives are receiving power. Solidly lit if drive is idle. Flashing – Drives are processing a command. Off – Power is off. Power Button Front upper left Turns the host system on and off. This button is recessed to prevent accidental server power-off. Use the tip of a pen to operate this button. Ala rm:Critical LED Front left Red Indicates a critical alarm. Refer to the server administration guide for a description of alarm states. Alarm:Major LED Front left Red Indicates a major alarm. Alarm:Minor LED Front left Amber Indicates a minor alarm. Alarm :User LED Front left Amber Indicates a user alarm. Power OK LED Rear center Green The LED provides the following indications: Off – The system is unavailable. Either the system has no power or ILOM is not running. Steady on – Indicates that the system is powered on and is running it its normal operating state. Standby blink – Indicates that the service processor is running while the system is running at a minimum level in Standby mode, and is ready to be returned to its normal operating state. Slow blink – Indicates that a normal transitory activity is taking place. The system diagnostics might be running, or that the system might be booting.

1.3.2 Hard Drive LEDs

The hard drive LEDs (Hard Drive LEDs and Hard Drive LEDs ) are located on the front of each hard drive that is installed in the server chassis.

Figure 1-4  Hard Drive LEDs

Figure Legend

1 OK to Remove

2Fault

3Activity

Table 1-3  Hard Drive LEDs 

LED Color Description OK to Remove Blue On – The drive is ready for hot-plug removal. Off – Normal operation. Faul t Amber On – The drive has a fault and requires attention. Off – Normal operation. Activity Green On – The drive is receiving power. Solidly lit if drive is idle. Flashing – The drive is processing a command. Off – Power is off.

1.3.3 Power Supply LEDs

The power supply LEDs (Power Supply LEDs and Power Supply LEDs ) are located on the rear of each power supply.

Figure 1-5  Power Supply LEDs

Figure Legend

1 Power OK power supply LED

2Fault power supply LED

3Input OK power supply LED

Table 1-4  Power Supply LEDs 

LED Color Description Power OK Green On – Normal operation. DC output voltage is within normal limits. Off – Power is off. Fault Amber On – Power supply has detected a failure. Off – Normal operation. Input OK Green On – Normal operation. Input power is within normal limits. Off – No input voltage, or input voltage is below limits.

1.3.4 Ethernet Port LEDs

The ILOM management Ethernet port and the four 10/100/1000 Mbps Ethernet ports each have two LEDs, as shown in Ethernet Port LEDs and described in Ethernet Port LEDs .

Figure 1-6  Ethernet Port LEDs

Figure Legend

1 Link/Activity indicator LED (Same location for all Ethernet ports)

2Speed indicator LED (Same location for all Ethernet ports)

Table 1-5  Ethernet Port LEDs 

LED Color Description Left LED Green Link/Activity indicator: Steady On – a link is established. Blinking – there is activity on this port. Off – No link is established. Right LED Amber or Green Speed indicator: Amber On – The link is operating as a Gigabit connection (1000-Mbps) Green On – The link is operating as a 100-Mbps connection. Off – The link is operating as a 10/100-Mbps connection.