Western Digital Ultrastar DC HC310 - 2 General Features

Table of Contents
1 General ........................................................................................................................................... 1
1.1 Introduction.......................................................................................................................... 1
1.2 Glossary ............................................................................................................................... 2
1.3 General Caution ................................................................................................................... 2
1.4 References ............................................................................................................................ 2
2 General Features .............................................................................................................................. 3
Part 1. Functional Specification ............................................................................................................. 4
3 Fixed Disk Subsystem Description ....................................................................................................... 5
3.1 Control Electronics ............................................................................................................... 5
3.2 Head Disk Assembly ............................................................................................................. 5
3.3 Actuator ............................................................................................................................... 5
4 Drive Characteristics.......................................................................................................................... 6
4.1 Default Logical Drive Parameters ......................................................................................... 6
4.2 Data Sheet............................................................................................................................ 7
4.3 World Wide Name Assignment .............................................................................................. 7
4.4 Drive Organization ............................................................................................................... 8
4.4.1 Drive Format ................................................................................................................. 8
4.4.2 Cylinder Allocation ......................................................................................................... 8
4.5 Performance Characteristics ................................................................................................. 9
4.5.1 Mechanical Positioning................................................................................................... 9
4.5.2 Drive Ready Time..........................................................................................................10
4.5.3 Operating Modes ...........................................................................................................10
5 Defect Flagging Strategy ...................................................................................................................12
5.1 Shipped Format ...................................................................................................................12
6 Specification....................................................................................................................................13
6.1 Electrical Interface ..............................................................................................................13
6.1.1 Connector Location........................................................................................................13
6.1.2 Signal Definition (SATA) ...............................................................................................15
6.1.3 Out of Band Signaling (SATA) .......................................................................................16
6.1.4 Voltage and Ground Signals...........................................................................................16
6.1.5 Ready LED Output........................................................................................................16
6.2 Environment........................................................................................................................17
6.2.1 Temperature and Humidity ...........................................................................................17
6.2.2 Storage Requirements ...................................................................................................18
6.2.3 Corrosion Test ...............................................................................................................18
6.2.4 Atmospheric Condition ..................................................................................................18
6.3 DC Power Requirements ......................................................................................................19
6.3.1 Input Voltage ................................................................................................................19
6.3.2 Power Supply Current ...................................................................................................21
6.3.3 Power Line Noise Limits................................................................................................24
6.3.4 Power Consumption Efficiency.......................................................................................24
6.4 Reliability ............................................................................................................................25
6.4.1 Data Integrity ...............................................................................................................25
6.4.2 Cable Noise Interference ...............................................................................................25
6.4.3 Load/Unload..................................................................................................................25
6.4.4 Start/Stop Cycles ...........................................................................................................25
6.4.5 Preventive Maintenance ................................................................................................25
6.4.6 Data Reliability .............................................................................................................25
6.5 Mechanical Specifications ....................................................................................................26
6.5.1 Physical Dimensions......................................................................................................26
6.5.2 Drive Mounting .............................................................................................................27