Seagate ST32000641AS Barracuda XT Series SATA Product Manual - Page 11

Barracuda XT Series SATA Product Manual, Rev. C

5

2.1

Formatted capacity

Model

Formatted

capacity*

Guaranteed

sectors

Bytes per sector

ST32000641AS

2000GB

3,907,029,168

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 48-bit address-

ing support of drives with capacities over 137GB.

2.2

Default logical geometry

Cylinders

Read/write heads

Sectors per track

16,383

16

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

.

2.3

Recording and interface technology

Interface

Serial ATA (SATA)

Recording method

Perpendicular

Recording density (kbits/inch max)

1421kb/in

Track density (ktracks/inch avg)

240 ktracks/in

Areal density (Gbits/inch

2

avg)

347Gb/in

2

Spindle speed (RPM)

7200 +

0.2%

Internal data transfer rate (Mb/s max)

1300Mb/s

Sustained data transfer rate (MB/s max)

138MB/s

I/O data-transfer rate (MB/s max)

600MB/s

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Formatted capacity	11
2.1.1 LBA mode	11
2.2 Default logical geometry	11
2.3 Recording and interface technology	11
2.4 Physical characteristics	12
2.5 Start/stop times	12
2.6 Power specifications	13
2.6.1 Power consumption	13
2.6.1.1 Typical current profiles	14
2.6.2 Conducted noise	15
2.6.3 Voltage tolerance	15
2.6.4 Power management modes	15
2.7 Environmental specifications	16
2.7.1 Ambient temperature	16
2.7.2 Temperature gradient	16
2.7.3 Humidity	16
2.7.3.1 Relative humidity	16
2.7.3.2 Wet bulb temperature	16
2.7.4 Altitude	16
2.7.5 Shock	17
2.7.5.1 Operating shock	17
2.7.5.2 Nonoperating shock	17
2.7.6 Vibration	17
2.7.6.1 Operating vibration	17
2.7.6.2 Nonoperating vibration	17
2.8 Acoustics	18
2.8.1 Test for Prominent Discrete Tones (PDTs)	18
2.9 Electromagnetic immunity	18
2.10 Warranty	19
2.11 Agency certification	19
2.11.1 Safety certification	19
2.11.2 Electromagnetic Compatibility (EMC)	19
2.11.3 FCC verification	20
2.12 Environmental protection	21
2.12.1 European Union Restriction of Hazardous Substances (RoHS) Directive	21
2.12.2 China Restriction of Hazardous Substances (RoHS) Directive	21
2.13 Corrosive environment	21
3.0 Configuring and mounting the drive	22
3.1 Handling and static-discharge precautions	22
3.2 Configuring the drive	23
3.3 Serial ATA cables and connectors	23
3.4 Drive mounting	24
4.0 Serial ATA (SATA) interface	25
4.1 Hot-Plug compatibility	25
4.2 Serial ATA device plug connector pin definitions	26
4.3 Supported ATA commands	27
4.3.1 Identify Device command	29
4.3.2 Set Features command	33
4.3.3 S.M.A.R.T. commands	34
5.0 Seagate Technology support services	35
Index	37
A	37
B	37
C	37
D	37
E	37
F	37
G	37
H	37
I	37
K	38
L	38
M	38
N	38
O	38
P	38
Q	38
R	38
S	38
T	39
U	39
V	39

Seagate ST32000641AS Barracuda XT Series SATA Product Manual - Page 11

Formatted capacity, Default logical geometry, Recording and interface technology - sata 2

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