Инструкция LFF (3.5") Серверный HDD WD Ultrastar DC HC310 HUS726T4TAL5204

Table of Contents

General ....................................................................................................................................................... 15

Introduction ..................................................................................................................................... 15

Glossary ........................................................................................................................................... 16

General Caution .............................................................................................................................. 16

References ........................................................................................................................................ 16

General Features ....................................................................................................................................... 17
Part 1. Functional Specification ....................................................................................................................... 18

Fixed Disk Subsystem Description ........................................................................................................... 19

Control Electronics ......................................................................................................................... 19

Head Disk Assembly ....................................................................................................................... 19

Actuator ........................................................................................................................................... 19

Drive Characteristics ................................................................................................................................. 20

Default Logical Drive Parameters ................................................................................................. 20

Data Sheet ....................................................................................................................................... 21

World Wide Name Assignment ...................................................................................................... 21

Drive Organization ......................................................................................................................... 22

Drive Format ............................................................................................................................ 22

Cylinder Allocation .................................................................................................................. 22

Performance Characteristics .......................................................................................................... 23

Mechanical Positioning ........................................................................................................... 23

Drive Ready Time .................................................................................................................... 24

Operating Modes ...................................................................................................................... 24

Defect Flagging Strategy ........................................................................................................................... 26

Shipped Format ............................................................................................................................... 26

Specification ............................................................................................................................................... 27

Electrical Interface ......................................................................................................................... 27

Connector Location .................................................................................................................. 27

Signal Definition (SATA) ......................................................................................................... 29

Out-of-Band Signaling (SATA)................................................................................................ 30

Voltage and Ground Signals ................................................................................................... 30

Ready LED Output .................................................................................................................. 30

Environment .................................................................................................................................... 31

Temperature and Humidity .................................................................................................... 31

Storage Requirements ............................................................................................................. 32

Corrosion Test .......................................................................................................................... 32

Atmospheric Condition ............................................................................................................ 33

DC Power Requirements ................................................................................................................ 34

Input Voltage ............................................................................................................................ 34

Power Supply Current ............................................................................................................. 36

Power Line Noise Limits ......................................................................................................... 39

Power Consumption Efficiency ............................................................................................... 39

Reliability ........................................................................................................................................ 40

Data Integrity .......................................................................................................................... 40

Cable Noise Interference ......................................................................................................... 40

Load/Unload ............................................................................................................................. 40

Start/Stop Cycles ..................................................................................................................... 40

Preventive Maintenance ......................................................................................................... 40

Data Reliability ........................................................................................................................ 40

Mechanical Specifications .............................................................................................................. 41

Physical Dimensions................................................................................................................ 41

Drive Mounting ........................................................................................................................ 42

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