These sections describe the status indicators (LEDs) located on the front and rear of the server, including those found on components and ports. This section includes the following topics:
A normal server boot process involves two indicators, the service processor SP OK 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 slowly 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 LED indicators remain lit, the server is in full power mode.
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.
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.
There are three status indicators (LEDs) on each drive.
There are two status indicators (LEDs) on each power supply. These indicators are visible from the rear of the server.
The server has one 10/100/1000BASE-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.
The server has four Gigabit Ethernet ports (NET 3, NET 2, NET 1, and NET 0). There are two status indicators on each port. These indicators (LEDs) are visible from the rear of the server.
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 I/O card 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 I/O card 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 motherboard near the rear of the server. This LED lights to inform a 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.