Troubleshooting Using the Server Front and Rear Panel Status Indicators
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:
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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.
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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:
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The Power/OK LED blinks slowly (0.5 seconds on, 0.5 seconds off), and the SP OK LED remains
lit (no blinking).
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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 1 Server System-Level status Indicators
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Locator LED and button
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White
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Indicates the location of the servers.
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Service Required
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Amber
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Indicates the fault state of the server.
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OFF – The server is operating normally.
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STEADY ON – A fault is present on the server. This LED indicator
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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.
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Power/OK
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Green
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Indicates
the operational state of the chassis.
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OFF – AC power is not present or the Oracle ILOM boot is not complete.
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Standby BLINK – Standby power is on, but the chassis power is off and the Oracle ILOM SP
is running.
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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.
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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.
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SP OK
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Green
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Indicates the state of the service processor.
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OFF – Service processor (SP) is not running.
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SLOW BLINK – SP is booting.
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STEADY ON – SP is fully operational.
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Top Fan
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TOP
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Amber
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Indicates that one or more of the internal fan modules have failed.
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Rear Power Supply Fault
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REAR
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Amber
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Indicates that one of the server power supplies has failed.
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System Over Temperature Warning
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Amber
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Indicates a warning for an over temperature 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.
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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 2 Server Fan Status Indicators
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Fan Status
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Amber
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-
Off – The fan module is correctly installed and operating within specification.
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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.
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Storage Drive Status Indicators
There are three status indicators (LEDs) on
each drive.
Table 3 Server Front Storage Drive Indicators
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Green
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OFF – Power is off or the installed drive is not recognized by the system.
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STEADY ON – The drive is engaged and is receiving power.
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Random BLINK – There is disk activity. The indicator blinks on and off to indicate
activity.
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Service Required
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Amber
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OK to Remove
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Blue
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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 4 Server Power Supply Indicators
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AC OK/DC OK
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Green
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OFF – No AC power is present.
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SLOW BLINK – Normal operation. Input power is within specification. DC output voltage is
not enabled.
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STEADY ON – Normal operation. Input AC power and DC output voltage are within
specification.
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Service Required
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Amber
|
-
OFF – Normal operation. No service action is required.
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STEADY ON – The power supply (PS) has detected a PS fan failure, PS overtemperature, PS
over current, or PS over or under voltage.
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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 5 Network Management Port Status Indicators
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Activity
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Top right
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Green
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Link speed
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Top left
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Green
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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 6 Gigabit Ethernet Port Status Indicators
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Activity
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Top left
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Green
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Link speed
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Top right
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Bicolored: Amber/Green
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Motherboard Status Indicators
The motherboard contains the following status indicators (LEDs).
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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).
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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).
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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.
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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.