Optical Disk Access Led; Uid Led (Id); Led On A Hard Disk Drive - NEC R120d-1E N8100-1955F 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.
UID LED pattern
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)
Flashing (amber)
Flashing (green and amber
alternately)
Off
The UID switch is pressed (ON).
The UID switch is not pressed (OFF).
Tips
You can turn on or flashing an LED using remote management software.
DISK LED
3.5-inch hard disk drive
This indicates the hard disk drive is being accessed.
When logical drives are configured in the RAID system, this indicates the installed
hard disk drive is broken.
In RAID system having data redundancy (RAID1, RAID5, RAID6, RAID10,
RAID50, or RAID60), the server can continue operation even if one (or two hard
disk drives in RAID6 or RAID60) of the hard disk drives fails.
However, replace the hard disk drive as soon as possible, and perform
reconstruction (rebuild) processing. (The failing hard disk drive can be replaced in
hot swap mode.)
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 broken hard
disk drive (auto rebuild feature). The LED flashes green and amber alternately
while the hard disk drive is being rebuilt.
The LED goes off when rebuilding completes. If rebuilding fails, the LED flashes
amber.
Hard disk drive is halted.
Express5800/R120d-1E User's Guide
4. Names and Functions of Parts
Explanation
DISK LED
2.5-inch hard disk drive
Explanation
43