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Seagate ST94811A Product Manual - Page 11

Introduction - interface

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate® Momentus™ 54 drives: • ST94011A • ST94811A • ST92011A • ST92811A These drives provide the following key features: • 5,400-RPM spindle speed and 2-Mbyte buffer (8 Mbytes on ST94811A and ST92811A models) combine for superior performance. • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5. • Giant magnetoresistive (GMR) recording heads and EPRML technology, which provide the drives with increased areal density. • State-of-the-art cache and on-the-fly error-correction algorithms. • Full-track multiple-sector transfer capability without local processor intervention. • 800 Gs nonoperating shock, and 225 Gs 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. • Support for autodetection of master/slave drives that use cable select (CSEL). Figure 1. Momentus 54 disc drive Momentus Product Manual, Rev. E 1

Section	Page
1.0 Introduction 1	7
2.0 Drive specifications 3	7
2.1 Specification summary 3	7
2.2 Formatted capacity 5	7
2.3 Default logical geometry 5	7
2.4 Physical organization 5	7
2.5 Recording and interface technology 6	7
2.6 Physical characteristics 6	7
2.7 Seek time 7	7
2.8 Time to ready 7	7
2.9 Power specifications 8	7
2.9.1 Power consumption 8	7
2.9.2 Conducted noise 9	7
2.9.3 Voltage tolerance 9	7
2.9.4 Power-management modes 10	7
2.10 Environmental specifications 11	7
2.10.1 Ambient temperature 11	7
2.10.2 Temperature gradient 11	7
2.10.3 Humidity 11	7
2.10.4 Altitude 11	7
2.10.5 Shock 12	7
2.10.6 Vibration 12	7
2.11 Acoustics 13	7
2.12 Electromagnetic immunity 13	7
2.13 Reliability 14	7
2.14 Agency certification 14	7
2.14.1 Safety certification 14	7
2.14.2 Electromagnetic compatibility 14	7
2.14.3 FCC verification 15	7
3.0 Configuring and mounting the drive 17	7
3.1 Handling and static discharge precautions 17	7
3.2 Jumper settings 17	7
3.2.1 Master/slave configuration 17	7
3.2.2 Cable-select option 18	7
3.3 Drive mounting 18	7
4.0 ATA interface 19	7
4.1 ATA interface signals and connector pins 19	7
4.1.1 Supported ATA commands 20	7
4.1.2 Identify Device command 23	7
4.1.3 Set Features command 26	7
4.1.4 S.M.A.R.T. commands 27	7
5.0 Compatibility summary 29	7
5.1 Installation considerations 29	7
5.2 BIOS versions tested 30	7
5.3 Operating system versions tested 30	7
5.4 Compatibility test configurations 31	7
5.5 Software utilities 31	7
5.6 Other certification 31	7
6.0 Seagate Technology support services 33	7
Figure 1. Momentus disc drive 1	9
Figure 2. Typical 5V startup and operation current profile 9	9
Figure 3. Jumper settings 17	9
Figure 4. Mounting dimensions-top, side and end view 18	9
1.0 Introduction	11
2.0 Drive specifications	13
2.1 Specification summary	13
2.2 Formatted capacity	15
2.3 Default logical geometry	15
2.4 Physical organization	15
2.5 Recording and interface technology	16
2.6 Physical characteristics	16
2.7 Seek time	17
2.8 Time to ready	17
2.9 Power specifications	18
2.9.1 Power consumption	18
2.9.1.1 Typical current profile	19
2.9.2 Conducted noise	19
2.9.3 Voltage tolerance	19
2.9.4 Power-management modes	20
2.10 Environmental specifications	21
2.10.1 Ambient temperature	21
2.10.2 Temperature gradient	21
2.10.3 Humidity	21
2.10.3.1 Relative humidity	21
2.10.3.2 Wet bulb temperature	21
2.10.4 Altitude	21
2.10.5 Shock	22
2.10.5.1 Operating shock	22
2.10.5.2 Nonoperating shock	22
2.10.6 Vibration	22
2.10.6.1 Operating vibration	22
2.10.6.2 Nonoperating vibration	22
2.11 Acoustics	23
2.12 Electromagnetic immunity	23
2.13 Reliability	24
2.14 Agency certification	24
2.14.1 Safety certification	24
2.14.2 Electromagnetic compatibility	24
2.14.3 FCC verification	25
3.0 Configuring and mounting the drive	27
3.1 Handling and static discharge precautions	27
3.2 Jumper settings	27
3.2.1 Master/slave configuration	27
3.2.2 Cable-select option	28
3.3 Drive mounting	28
4.0 ATA interface	29
4.1 ATA interface signals and connector pins	29
4.1.1 Supported ATA commands	30
4.1.2 Identify Device command	33
4.1.3 Set Features command	36
4.1.4 S.M.A.R.T. commands	37
5.0 Compatibility summary	39
5.1 Installation considerations	39
5.2 BIOS versions tested	40
5.3 Operating system versions tested	40
5.4 Compatibility test configurations	41
5.5 Software utilities	41
5.6 Other certification	41
6.0 Seagate Technology support services	43
Index	47
Numerics	47
A	47
B	47
C	47
D	47
E	47
F	47
G	47
H	47
I	47
J	48
K	48
L	48
M	48
N	48
O	48
P	48
R	48
S	48
T	49
U	49
V	49