Table 1 Server front panel component descriptions
Item Description
1 NVRAM battery backup pack
2 Hard disk drive A (top)
3 Hard disk drive B (bottom)
4 Disk B status LED
5 Disk A status LED
6 Fan 1
7 Fan 2
8 Power status LED
9 Server status LED
10 NVRAM battery backup pack status LED
11 Fan 1 status LED
12 Fan 2 status LED
LED status indicators
The LEDs (light emitting diodes) on the front of the chassis indicate the overall status of
the server, as well as the status of some of the individual components. The NVRAM
backup battery pack, each of the hard disk drives, and each of the fan assemblies has a
status LED.
LED status indicators
Chapter 4: Hitachi NAS Platform server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 34