NEC Express5800 series User Manual page 39

General Description 2-13
Hard Disk Drive
A single hard disk drive includes one lamp.
DISK ACCESS lamp
The lamp lights while the hard disk drive is being accessed (however, if the hard disk drive is
operated in the array configuration using HostRAID, the lamp operates only in the OS boot status).
The lamp lights amber if a hard disk drive cannot be interfaced with the CPU blade correctly due to
a hardware fault in the CPU blade or another failure.
In the disk array configuration, the lamp blinks green or amber alternately while the disk array is
being rebuilt (this does not indicate an error). Once it is rebuilt, the lamp returns to the normal
indication. If the rebuilding fails, the lamp lights amber.