NEC HX4500 manual Hard Disk Drives

Hard Disk Drives

The following paragraphs provide procedures for installing an additional disk drive, removing a disk drive, or swapping out a faulty disk drive from one of the three hot- swap drive cages. 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 carrier.

Note: To order a carrier, contact your sales representative or dealer.

If installing new drives, follow an installation scheme starting with the bottom

Tleft drive. Fill the cages left to right.

If an individual SCSI drive fault LED (yellow light) is on steadily, this indicates that the drive below it has been flagged as faulty. Follow the procedure described in this section to remove the faulty drive and swap in a good one.

Note: Swap SCSI drives without turning off power. This is one of the few system procedures that is safe to do with the system power left on. This is true only if a Redundant Array of Independent Disks (RAID) controller module is installed and only for the drive/carrier assemblies in the hot-swap cages, not for drives in any other bays.

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.

4-38 Upgrading Your System