HGST HUS724040ALS640 User Manual

HGST Ultrastar 7K4000 (SAS) Hard Disk Drive Specification
Table of Contents
1.0 General............................................................................................................................1
1.1 Introduction................................................................................................................1
1.2 Glossary .....................................................................................................................2
1.3 Caution.......................................................................................................................2
1.4 References..................................................................................................................2
2.0 Outline of the Drive .......................................................................................................3
3.0 Fixed-disk Subsystem Description ...............................................................................5
3.1 Control Electronics ....................................................................................................5
3.2 Head Disk Assembly .................................................................................................5
3.3 Actuator .....................................................................................................................5
4.0 Drive Characteristics.....................................................................................................7
4.1 Formatted Capacity....................................................................................................7
4.2 Data Sheet..................................................................................................................7
4.3 Inquiry Information....................................................................................................8
4.3.1 Product ID.........................................................................................................8
4.3.2 World Wide ID - Block Assignment ................................................................8
4.4 Performance characteristics.......................................................................................9
4.4.1 Mechanical positioning.....................................................................................9
4.4.2 Drive ready time ...............................................................................................10
4.4.3 Data transfer speed: ..........................................................................................11
4.4.4 Buffering operation (read ahead/write cache)...................................................11
5.0 Data Integrity.................................................................................................................13
5.1 Equipment Status.......................................................................................................13
5.2 Error Recovery Procedure..........................................................................................13
6.0 Physical Format .............................................................................................................15
6.1 Shipped Format (P-List) ............................................................................................15
6.2 Reassigned Format (G-List).......................................................................................15
7.0 Electrical Interface.........................................................................................................17
7.1 SAS Connector ..........................................................................................................17
7.1.1 29 pin Serial Attached SCSI (SAS) Connector Definition...............................17
7.1.2 Voltage and Ground Signals.............................................................................18
7.1.3 Ready LED output ............................................................................................18
8.0 Environment...................................................................................................................19
8.1 Temperature and humidity.........................................................................................19
8.2 Storage requirements .................................................................................................20
8.2.1 Packaging..........................................................................................................20
8.2.2 Storage time......................................................................................................20
8.3 Corrosion test.............................................................................................................20
8.4 Cooling requirements.................................................................................................21
9.0 DC Power Requirements...............................................................................................23
9.1 Power Supply Current, Average and Peak.................................................................23
9.2 Ripple Voltage...........................................................................................................25
9.3 Power Consumption Efficiency Index.......................................................................26
10.0 Reliability......................................................................................................................27

HGST HUS724040ALS640 Specifications

General

Brand	HGST
Model	HUS724040ALS640
Category	Storage
Language	English