Troubleshooting Using the Server Front and Rear 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:
-
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 1 Server System-Level status Indicators
|
|
|
|
Locator LED and button
|
|
White
|
Indicates the location of the servers.
|
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.
|
Rear Power Supply Fault
|
REAR
|
Amber
|
Indicates that one of the server power supplies has
failed.
|
System Over Temperature Warning
|
|
Amber
|
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.
|
|
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
|
|
|
|
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 3 Server Front Storage Drive Indicators
|
|
|
|
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
|
|
OK to Remove
|
|
Blue
|
|
|
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
|
|
|
|
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 5 Network Management Port Status Indicators
|
|
|
|
Activity
|
Top left
|
Green
|
|
Link speed
|
Top right
|
Green
|
|
|
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
|
|
|
|
Activity
|
Top left
|
Green
|
|
Link speed
|
Top right
|
Bicolored: Amber/Green
|
|
|
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.