NEC D3 - Hardware Component Features; Array Front View

Hardware Component Features
This section describes and illustrates a few of important components that are accessible from the front and rear
of the base unit.
Array Front View
This section describes the array components accessible from the front.
Figure 3. Array Front View (with bezel removed)
Disk Drives and Dummy Trays
Base units and disk enclosures have 12 disk drive slots. To maintain proper airflow and thermal conditions,
each slot is filled with either a disk drive or dummy tray.
Figure 3, above, shows the drive numbering sequence for the slots.
Service LED and Power LED
The Service and Power indicators illuminate to indicate different operating conditions as follows.
Power LED Service LED Description
ON OFF Normal operating condition
ON ON Indicates that a maintenance request or maintenance task is in process
ON Blinking
Depending on controller LED status (which is located at the rear of the unit),
this can indicate that a power-on sequence, online download sequence, or
automatic download sequence is in progress
ON
ON 5 Seconds
OFF 7 Seconds
Indicates that a condition may exist that requires immediate technical
support from NEC
Blinking OFF Cache flushed, okay to power down if desired
OFF OFF Powered off
Table 2. Power LED and Service LED Status Conditions
Active/Fault LEDs
There is a single Active/Fault LED for each disk drive slot. These indicators use different color/blinking
indicators to signal different operating conditions for each respective drive as follows:
Active/Fault LED Status
Green Steady ON Normal status (Ready)
Green Blinking Normal status (Accessing)
Green/Orange Alternating Performing RAID rebuild
Orange Blinking HDD low power condition
Orange Steady ON Abnormal status
Table 2. Active/Fault LED Status Conditions
NEC D3/D4 Quick Start Guide 4
Service LED Power LED
A
ctivit
y
/Fault LEDDisk Drive or Tra
y
00 02 03
04
08
05
01
06
0A 09
07
0B