Optical Disk Access Led; Uid Led (Id); Led On A Hard Disk Drive - NEC Express5800/R120d-2E User Manual

Chapter 1 General Description
4.7.5

Optical disk access LED

The access LED for optical disk drive at the front of the server flashes when a CD or DVD is being accessed.
4.7.6

UID LED (ID)

The UID LED is provided one each at the front and rear of the server. If you press the UID switch provided at
the front or rear of the server, the light turns on. If you press it again, the light turns off. It flashes when
commands from software are received. This LED is used to identify the target server among multiple servers
installed in a rack. Especially when performing maintenance from behind the server, lighting the LED will
help you to identify which server to work with.
On (blue)
Off
4.7.7

LED on a hard disk drive

DISK LED on a hard disk drive to be installed in the drive bay indicates different states
DISK Access LED pattern
On(green)
On (amber)
Flashing (green and amber
alternately)
Off
46
UID LED pattern
Tips
You can turn on or flashing an LED using remote management software.
DISK LED
3.5-inch hard disk drive
This indicates a hard disk drive is being accessed
This indicates a hard disk drive is failing.
This indicates that a hard disk drive is being rebuilt (not a defect).
In a RAID system, the hard disk drive is automatically rebuilt upon replacing a
failed hard disk drive (auto rebuild feature).
Hard disk drive is halted.
Important
Observe the following precautions whenever you use the auto rebuild feature.
• Do not turn off or reboot the server while a hard disk drive is being rebuilt.
• Wait at least 90 seconds before installing a hard disk drive after removing one.
• Do not replace a hard disk drive while another hard disk drive is being rebuilt.
Express5800/R120d-2E User's Guide
Explanation
The UID switch is pressed (ON).
The UID switch is not pressed (OFF).
DISK LED
2.5-inch hard disk drive
Explanation
4. Names and Functions of Parts