NEC MC2400 - Manual (Page 107)

Upgrading Your System 4-25
Installing or Swapping a Hard Disk Drive in a Hot-swap Bay
This procedure describes installing a new drive or swapping out a faulty drive
from one of the seven hot-swap SCSI disk drive bays. The 3 1/2-inch SCSI
drives must use the industry standard 80-pin Single Connector Attachment
(SCA) connector. Each drive must be installed in a drive carrier.
Note: To order a disk with a carrier, contact your sales
representative or dealer.
! If installing new drives, follow an installation scheme starting with the
bottom drive. Fill the bays bottom to top.
! If an individual SCSI drive fault LED (yellow light) is on steadily, this
indicates that the drive has been flagged as faulty by the RAID host
controller. Follow the procedure described in this section to remove the
faulty drive and swap in a good one.
Note: ESD can damage disk drives, boards, and other
parts. This system can withstand normal levels of
environmental ESD while you are hot-swapping SCSI hard
drives. However, we recommend that you do all procedures
in this chapter only at an ESD workstation or provide some
ESD protection by wearing an antistatic wrist strap attached
to chassis ground
 any unpainted metal surface  on your
system when handling parts.
! CAUTION
D rive manufacturer's caution against moving a disk drive
that is still spinning because of possible damage to the drive.
After you determine which drive has been flagged as faulty, the procedure is the
same to swap a drive or to install one for the first time.