CHAPTER 1: Introduction

Drive carrier module

The drive carrier module comprises a hard disk mounted in a carrier. Each drive bay houses a single, low profile, 1.0-inch high, 3.5-inch form-factor disk drive in its carrier. The carrier has mounting locations for SAS or SATA drives.

The front cap also supports an ergonomic handle which provides the following functions:

•Inserting the carriers into the drive bays

•Removing the carriers from drive bays

•Positive “spring loading” of the drive/backplane connector

•An anti-tamper lock operated by a torx-socket type key

Drive status indicators

Each drive carrier has two LEDs, an upper (green) and lower (orange). In normal operation the green indicator is ON and flickers as the drive operates. The orange indicator is only ON if there is a drive fault. If the green LED is OFF when the orange LED is ON, a power control circuit failure is indicated.

Power On & OK

Module Fault

Status

(Green)

(Orange)

 

 

 

 

On

Off

Normal operation

 

 

 

On

On

Drive fault

 

 

 

Off

On

A power control circuit failure

Anti-tamper locks

Anti-tamper locks are installed in the drive carrier handles and are accessed through the small cutout in the latch section of the handle. These locks are provided to disable the normal “pinch” latch action of the carrier handle.

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