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Seagate ST3000DM001 Barracuda 7200.11 SATA Product Manual - Page 17

Physical characteristics, Seek time - benchmark

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2.4 Physical characteristics Maximum height 1500, 1000 and 640 GB models 320 and 160 GB models Maximum width Maximum length Typical weight 1500 GB models 1000 GB models 640 GB models 320 GB models 160 GB models Cache buffer ST31500341AS, ST31000333AS and ST3640323AS ST3640623AS and ST3320613AS ST3320813AS and ST3160813AS 26.1 mm (1.028 inches) 20.17 mm (0.794 inches) 101.6 mm (4.000 +/- 0.010 inches) 146.99 mm (5.787 inches) 720 grams (1.587 lbs) 677 grams (1.493 lbs) 543 grams (1.199 lbs) 405 grams (0.893 lbs) 390 grams (0.860 lbs) 32 Mbytes (32,768 kbytes) 16 Mbytes (16,384 kbytes) 8 Mbytes (8,192 kbytes) 2.5 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead. Typical seek times (msec) Track-to-track Average* (1500, 1000 and 640 GB models) Average** (320 and 160 GB models) Average latency: *Measured in performance mode. **Measured in quiet mode. Read

Section	Page
1.0 Introduction 1	3
1.1 About the Serial ATA interface 2	3
2.0 Drive specifications 3	3
2.1 Formatted capacity 10	3
2.1.1 LBA mode 10	3
2.2 Default logical geometry 10	3
2.3 Recording and interface technology 10	3
2.4 Physical characteristics 11	3
2.5 Seek time 11	3
2.6 Start/stop times 12	3
2.7 Power specifications 12	3
2.7.1 Power consumption 12	3
2.7.2 Conducted noise 14	3
2.7.3 Voltage tolerance 14	3
2.7.4 Power-management modes 14	3
2.8 Environmental specifications 15	3
2.8.1 Ambient temperature 15	3
2.8.2 Temperature gradient 15	3
2.8.3 Humidity 15	3
2.8.4 Altitude 15	3
2.8.5 Shock 15	3
2.8.6 Vibration 16	3
2.9 Acoustics 17	3
2.9.1 Test for Prominent Discrete Tones (PDTs) 17	3
2.10 Electromagnetic immunity 17	3
2.11 Reliability 18	3
2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) 18	3
2.12 Agency certification 18	3
2.12.1 Safety certification 18	3
2.12.2 Electromagnetic compatibility 18	3
2.12.3 FCC verification 19	3
2.13 Environmental protection 20	3
2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive 20	3
2.14 Corrosive environment 20	3
3.0 Configuring and mounting the drive 21	3
3.1 Handling and static-discharge precautions 21	3
3.2 Configuring the drive 22	3
3.3 Serial ATA cables and connectors 23	3
3.4 Drive mounting 24	3
4.0 Serial ATA (SATA) interface 27	3
4.1 Hot-Plug compatibility 27	3
4.2 Serial ATA device plug connector pin definitions 28	3
4.3 Supported ATA commands 29	3
4.3.1 Identify Device command 31	3
4.3.2 Set Features command 35	3
4.3.3 S.M.A.R.T. commands 36	3
5.0 Seagate Technology support services 37	3
Figure 1. Serial ATA connectors 22	5
Figure 2. Attaching SATA cabling 23	5
Figure 3. Mounting dimensions (1500, 1000 and 640 GB models) 24	5
Figure 4. Mounting dimensions (320 and 160 GB models) 25	5
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Formatted capacity	16
2.1.1 LBA mode	16
2.2 Default logical geometry	16
2.3 Recording and interface technology	16
2.4 Physical characteristics	17
2.5 Seek time	17
2.6 Start/stop times	18
2.7 Power specifications	18
2.7.1 Power consumption	18
2.7.2 Conducted noise	20
2.7.3 Voltage tolerance	20
2.7.4 Power-management modes	20
2.8 Environmental specifications	21
2.8.1 Ambient temperature	21
2.8.2 Temperature gradient	21
2.8.3 Humidity	21
2.8.3.1 Relative humidity	21
2.8.3.2 Wet bulb temperature	21
2.8.4 Altitude	21
2.8.5 Shock	21
2.8.5.1 Operating shock	21
2.8.5.2 Nonoperating shock	22
2.8.6 Vibration	22
2.8.6.1 Operating vibration	22
2.8.6.2 Nonoperating vibration	22
2.9 Acoustics	23
2.9.1 Test for Prominent Discrete Tones (PDTs)	23
2.10 Electromagnetic immunity	23
2.11 Reliability	24
2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	24
2.12 Agency certification	24
2.12.1 Safety certification	24
2.12.2 Electromagnetic compatibility	24
2.12.3 FCC verification	25
2.13 Environmental protection	26
2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive	26
2.14 Corrosive environment	26
3.0 Configuring and mounting the drive	27
3.1 Handling and static-discharge precautions	27
3.2 Configuring the drive	28
3.3 Serial ATA cables and connectors	29
3.4 Drive mounting	30
4.0 Serial ATA (SATA) interface	33
4.1 Hot-Plug compatibility	33
4.2 Serial ATA device plug connector pin definitions	34
4.3 Supported ATA commands	35
4.3.1 Identify Device command	37
4.3.2 Set Features command	41
4.3.3 S.M.A.R.T. commands	42
5.0 Seagate Technology support services	43
Index	45
A	45
B	45
C	45
D	45
E	45
F	45
G	45
H	45
I	46
K	46
L	46
M	46
N	46
O	46
P	46
Q	46
R	46
S	47
T	47
U	47
V	47