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Seagate ST31000528AS Barracuda 7200.12 SATA Product Manual - Page 16

Formatted capacity, Default logical geometry - ata device

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2.1 Formatted capacity Model ST31000528AS ST3750528AS ST3500418AS ST3500410AS ST3320418AS ST3250318AS ST3160318AS Formatted capacity* 1000GB 750GB 500GB 320GB 250GB 160GB Guaranteed sectors 1,953,525,168 1,465,149,168 976,773,168 625,142,448 488,397,168 312,581,808 Bytes per sector 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 2.1.1 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n-1, where n is the number of guaranteed sectors as defined above. See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137GB. 2.2 Default logical geometry Cylinders 16,383 Read/write heads 16 Sectors per track 63 LBA mode When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n-1, where n is the number of guaranteed sectors as defined above. 10 Barracuda 7200.12 Serial ATA Product Manual, Rev. G

Section	Page
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	17
2.4 Physical characteristics	17
2.5 Seek time	18
2.6 Start/stop times	18
2.7 Power specifications	19
2.7.1 Power consumption	19
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	22
2.8.5.1 Operating shock	22
2.8.5.2 Non-operating shock	22
2.8.6 Vibration	22
2.8.6.1 Operating vibration	22
2.8.6.2 Non-operating vibration	22
2.9 Acoustics	23
2.9.1 Test for Prominent Discrete Tones (PDTs)	23
2.10 Electromagnetic immunity	23
2.11 Warranty	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
2.13.2 China 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	28
3.4 Drive mounting	29
4.0 Serial ATA (SATA) interface	31
4.1 Hot-Plug compatibility	31
4.2 Serial ATA device plug connector pin definitions	32
4.3 Supported ATA commands	33
4.3.1 Identify Device command	35
4.3.2 Set Features command	39
4.3.3 S.M.A.R.T. commands	40
5.0 Seagate Technology support services	41
Index	43
A	43
B	43
C	43
D	43
E	43
F	43
G	43
H	43
I	43
K	44
L	44
M	44
N	44
O	44
P	44
Q	44
R	44
S	44
T	45
U	45
V	45