Troubleshooting Using the Server Front and Rear Status Indicators

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The following sections describe the operation of the server status indicators.

Related Information

Server Boot Process and Normal Operating State Indicators

A normal server boot process involves two indicators, the service processor (SP) OK/Fault LED indicator and the Power/OK LED indicator.

When AC power is connected to the server, the server boots into standby power mode:

The SP OK LED blinks slowly (0.5 seconds on, 0.5 seconds off) while the SP is starting, and the main Power/OK LED remains off until the SP is ready.
After a few minutes, the main Power/OK LED flashes the standby blink pattern (0.1 seconds on, 2.9 seconds off), indicating that the SP (and Oracle ILOM) is ready for use. In standby power mode, the server is not initialized or fully powered on at this point.

When powering on the server (either by the Power button or Oracle ILOM), the server boots to full power mode:

The Power/OK LED blinks slowly (0.5 seconds on, 0.5 seconds off), and the SP OK LED remains lit (no blinking).
When the server has successfully booted, the Power/OK LED remains lit. When the Power/OK LED and the SP OK/Fault LED indicators remain lit, the server is in full power mode.

Note - The green Power/OK LED indicator and the green SP OK/Fault indicator remain lit (no blinking) when the server is in a normal operating state.

Server System-Level Status Indicators

There are seven, system-level status indicators (LEDs), some of which are located on both the server front panel and the server back panel. The following table describes these indicators.

Table 25 Server System-Level status Indicators

Status Indicator Name	Icon	Colors	State and Meaning
Locator LED and button		White	Indicates the location of the servers. OFF – Server is operating normally. FAST BLINK – Use Oracle ILOM to activate this LED to enable you to locate a particular system quickly and easily. Pressing the Locate button will toggle the LED fast blink on or off.
Service Required		Amber	Indicates the fault state of the server. OFF – The server is operating normally. STEADY ON – A fault is present on the server. This LED indicator lights whenever a fault indicator lights for a replaceable component on the server. Note - When this indicator is lit, a system console message might appear that includes a recommended service action.
Power/OK		Green	Indicates the operational state of the chassis. OFF – AC power is not present or the Oracle ILOM boot is not complete. Standby BLINK – Standby power is on, but the chassis power is off and the Oracle ILOM SP is running. SLOW BLINK – Startup sequence has been initiated on the host. This pattern should begin soon after you power on the server. This status indicates either: Power-on self-test (POST) code checkpoint tests are running on the server host system, or the host is transitioning from the powered-on state to the standby state on shutdown. STEADY ON – The server is powered on, and all host POST code checkpoint tests are complete. The server is in one of the following states: the server host is booting the operating system (OS), or the server host is running the OS.
SP OK		Green	Indicates the state of the service processor. OFF – Service processor (SP) is not running. SLOW BLINK – SP is booting. STEADY ON – SP is fully operational.
Top Fan	TOP	Amber	Indicates that one or more of the internal fan modules have failed. OFF – Indicates steady state; no service is required. STEADY ON – Indicates service required.
Rear Power Supply Fault	REAR	Amber	Indicates that one of the server power supplies has failed. OFF – Indicates steady state; no service is required. STEADY ON – Indicates service required; service the power supply.
System Over Temperature Warning		Amber	Indicates a warning for an over temperature condition. OFF – Normal operation; no service is required. STEADY ON – The system is experiencing an overtemperature warning condition. Note - This is a warning indication, not a fatal overtemperature. Failure to correct this might result in the system overheating and shutting down unexpectedly.

Server Fan Status Indicators

Each fan module has one status indicator (LED). The LEDs are located on the chassis mid-wall adjacent to and aligned with the fan modules and are visible when the top cover fan door is open.

Table 26 Server Fan Status Indicators

Status Indicator Name	Icon	Color	State and Meaning
Fan Status		Amber	Off – The fan module is correctly installed and operating within specification. Amber – The fan module is faulty. The front TOP FAN LED and the front and rear panel Service Required LEDs are also lit if the system detects a fan module fault.

Storage Drive Status Indicators

There are three status indicators (LEDs) on each drive.

Table 27 Server Front Storage Drive Indicators

Status Indicator Name	Color	State and Meaning
OK/Activity	Green	OFF – Power is off or the installed drive is not recognized by the system. STEADY ON – The drive is engaged and is receiving power. Random BLINK – There is disk activity. The indicator blinks on and off to indicate activity.
Service Required	Amber	OFF – The storage drive is operating normally. STEADY ON – The system has detected a fault with the storage drive.
OK to Remove	Blue	STEADY ON – The storage drive can be removed safely during a hot-plug operation. OFF – The storage drive has not been prepared for removal.

Power Supply Status Indicators

There are two status indicators (LEDs) on each power supply. These indicators are visible from the rear of the server.

Table 28 Server Power Supply Indicators

Status Indicator Name	Icon	Color	State and Meaning
AC OK/DC OK		Green	OFF – No AC power is present. SLOW BLINK – Normal operation. Input power is within specification. DC output voltage is not enabled. STEADY ON – Normal operation. Input AC power and DC output voltage are within specification.
Service Required		Amber	OFF – Normal operation. No service action is required. STEADY ON – The power supply (PS) has detected a PS fan failure, PS overtemperature, PS over current, or PS over or under voltage.

Network Management Port Status Indicators

The server has one 10/100/1000 BASE-T Ethernet management domain interface, labeled NET MGT. There are two status indicators (LEDs) on this port. These indicators are visible from the rear of the server.

Table 29 Network Management Port Status Indicators

Status Indicator Name	Location	Color	State and Meaning
Activity	Top left	Green	ON – Link up. OFF – No link or down link. FLASHING – Packet activity.
Link speed	Top right	Green	Green ON – 1000BASE-T link. OFF – 10/100BASE-T link.

Ethernet Ports Status Indicators

The server has four Gigabit Ethernet ports (NET 3, NET 2, NET 1, and NET 0). There are two status indicators (LEDs) on each port. These indicators are visible from the rear of the server.

Note - Ethernet ports NET 2 and NET 3 are nonfunctional in single-processor systems.

Table 30 Gigabit Ethernet Port Status Indicators

Status Indicator Name	Location	Color	State and Meaning
Activity	Top left	Green	ON – No function. OFF– No activity. FLASHING – Packet activity.
Link speed	Top right	Bicolored: Amber/Green	OFF – 100BASE-T link. Amber ON – 1000BASE-T link. Green ON – 10GBBASE-T link. FLASHING – No function.

Motherboard Status Indicators

The motherboard contains the following status indicators (LEDs).

DIMM Fault Status Indicators - Each of the 24 DIMM sockets on the motherboard has an amber fault status indicator (LED) associated with it. If Oracle ILOM determines that a DIMM is faulty, pressing the Fault Remind button on the motherboard signals the service processor to light the fault LED associated with the failed DIMM. For more information on DIMM fault status indicators and the location of the Fault Remind Button, see Servicing the DIMMs (CRU).
Processor Fault Status Indicators: The motherboard includes a fault status indicator (LED) adjacent to each of the two processor sockets. These LEDs indicate when a processor fails. Pressing the Fault Remind button on the motherboard signals the service processor to light the fault status indicators associated with the failed processors. For more information on processor fault status indicators and the location of the Fault Remind Button, see Servicing Processors (FRU).
Fault Remind Status Indicator: This status indicator (LED) is located next to the Fault Remind button and is powered from the super capacitor that powers the fault LEDs on the motherboard. This LED lights to indicate that the fault remind circuitry is working properly in cases where no components have failed and, as a result, none of the component fault LEDs illuminate. For more information on the fault remind status indicator and the location of the Fault Remind Button, see Using the Server Fault Remind Button.
STBY PWRGD Status Indicator - This green status indicator (LED) is labeled STBY PWRGD and is located on the rear of the server near PCIe slot 2. This LED lights to inform the service technician that the motherboard is receiving standby power from at least one of the power supplies. This LED is provided to help prevent service actions on the server internal components while the AC power cords are installed and power is being supplied to the server.

Note - If a PCIe card is installed in PCIe slot 2, this LED might not be visible.

Note - The service instructions for all server internal components require that all AC power be removed from the power supplies prior to removing the server top cover.