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Seagate ST98823AS Momentus 5400.2 SATA Product Manual - Page 7

Introduction - momentus 5400 2

UPC - 000000098823

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus® 5400.2 SATA model drives: • ST9120821AS • ST9100824AS • ST98823AS • ST96812AS • ST94813AS • ST93811AS These drives provide the following key features: • 5,400 RPM spindle speed. • 8 Mbyte buffer. • High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second). • Tunneling Magnetoresistive (TMR) recording heads. • State-of-the-art cache and on-the-fly error-correction algorithms. • Full-track multiple-sector transfer capability without local processor intervention. • Quiet operation. • 800 Gs nonoperating shock and 250 Gs of operating shock. • SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns. • The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industry's most comprehensive protection for disc drives. • Support for S.M.A.R.T. drive monitoring and reporting. • Support for Read Multiple and Write Multiple commands. Figure 1. Momentus 5400.2 SATA disc drive Momentus 5400.2 SATA Product Manual, Rev. C 1

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	11
2.2.1 LBA mode	11
2.3 Default logical geometry	11
2.4 Physical organization	12
2.5 Recording and interface technology	12
2.6 Physical characteristics	12
2.7 Seek time	13
2.8 Start/stop times	13
2.9 Power specifications	14
2.9.1 Power consumption	14
2.9.2 Deferred spinup	15
2.9.3 Conducted noise	16
2.9.4 Voltage tolerance	16
2.9.5 Power-management modes	16
2.10 Environmental specifications	17
2.10.1 Ambient temperature	17
2.10.2 Temperature gradient	17
2.10.3 Humidity	17
2.10.3.1 Relative humidity	17
2.10.3.2 Wet bulb temperature	17
2.10.4 Altitude	17
2.10.5 Shock	18
2.10.5.1 Operating shock	18
2.10.5.2 Nonoperating shock	18
2.10.6 Vibration	18
2.10.6.1 Operating vibration	18
2.10.6.2 Nonoperating vibration	18
2.11 Acoustics	19
2.12 Electromagnetic immunity	19
2.13 Reliability	20
2.14 Agency certification	20
2.14.1 Safety certification	20
2.14.2 Electromagnetic compatibility	20
2.14.3 FCC verification	21
2.15 Environmental protection	22
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	22
2.16 Corrosive environment	22
3.0 Configuring and mounting the drive	23
3.1 Handling and static-discharge precautions	23
3.2 Configuring the drive	24
3.3 Serial ATA cables and connectors	24
3.4 Drive mounting	25
4.0 Serial ATA (SATA) interface	27
4.1 Hot-Plug compatibility	27
4.2 Serial ATA device plug connector pin definitions	27
4.3 Supported ATA commands	29
4.3.1 Identify Device command	32
4.3.2 Set Features command	35
4.3.3 S.M.A.R.T. commands	36
5.0 Seagate Technology support services	37
A	39
B	39
C	39
D	39
E	39
F	39
G	39
H	40
I	40
K	40
L	40
M	40
N	40
O	40
P	40
Q	40
R	40
S	41
T	41
U	41
V	41