Dell PowerEdge 2850 Manual del usuario - Página 9
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Indicator, Button,
Icon
Description
or Connector
blue system status
Does not operate when the optional bezel is removed. The LCD display indicates the status.
indicator
amber system
Does not operate when the optional bezel is removed. The LCD display indicates the status.
status indicator
LCD display
Provides system ID, status information, and system error messages.
The LCD display lights during normal system operation. Both the systems management software and the identification
buttons located on the front and back of the system can cause the LCD to flash blue to identify a particular system.
The LCD display lights amber when the system needs attention due to a problem with power supplies, fans, system
temperature, or hard drives.
NOTE:
whether the system has been powered on.
power-on indicator,
The power-on indicator lights when the system power is on. The power-on indicator blinks when power is available to the
power button
system, but the system is not powered on.
The power button controls the DC power supply output to the system.
NOTE:
system performs a graceful shutdown before the power is turned off. If the system is not running an ACPI-compliant
operating system, the power is turned off immediately after the power button is pressed.
system
The identification buttons on the front and back panels can be used to locate a particular system within a rack. When one of
identification button
these buttons is pushed, the blue system status indicator on the front and back blinks until one of the buttons is pushed
again.
USB connectors
Connects USB 2.0-compliant devices to the system.
NMI button
Used to troubleshoot software and device driver errors when using certain operating systems. This button can be pressed
using the end of a paper clip.
Use this button only if directed to do so by qualified support personnel or by the operating system's documentation.
video connector
Connects a monitor to the system.
SCSI Hard-Drive Indicator Codes
If RAID is activated, two indicators on each of the hard-drive carriers provide information on the status of the SCSI hard drives. RAID can be enabled either by
using ROMB on the riser card or by using a RAID card connected to the backplane. See
drive power-on/fault indicator.
Figure 1-2. SCSI Hard-Drive Indicators
Table 1-3
lists the drive indicator patterns. Different patterns are displayed as drive events occur in the system. For example, if a hard-drive fails, the "drive
failed" pattern appears. After the drive is selected for removal, the "drive being prepared for removal" pattern appears, followed by the "drive ready for
insertion or removal" pattern. After the replacement drive is installed, the "drive being prepared for operation" pattern appears, followed by the "drive online"
pattern.
NOTE:
If RAID is not activated, only the "drive online" indicator pattern appears. The drive-activity indicator also blinks when the drive is being accessed.
Table 1-3. Hard-Drive Indicator Patterns
If the system is connected to AC power and an error has been detected, the LCD display flashes amber regardless of
If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the
Figure 1-2
and Table 1-3. The SCSI backplane firmware controls the