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Power specifications

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2.8 Power specifications The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector. 2.8.1 Power consumption Power requirements for the drives are listed in the table on page 25. Typical power measurements are based on an average of drives tested, under nominal conditions, using +5.0V and +12.0V input voltage at 25°C ambient temperature. • Spinup power Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed. • Seek mode During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does not execute a read or write operation. Servo electronics are active. Seek mode power represents the worstcase power consumption, using only random seeks with read or write latency time. This mode is not typical and is provided for worst-case information. • Read/write power and current Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay. • Operating power and current Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive idle mode. • Idle mode power Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a random track location. • Standby mode During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/ write electronics are in power-down mode. Barracuda 7200.9 PATA Product Manual, Rev. F 23

Section	Page
1.0 Introduction 1	3
2.0 Drive specifications 3	3
2.1 Specification summary table 3	3
2.2 Formatted capacity 20	3
2.2.1 LBA mode 20	3
2.3 Default logical geometry 20	3
2.4 Recording and interface technology 21	3
2.5 Physical characteristics 22	3
2.6 Seek time 22	3
2.7 Start/stop times 22	3
2.8 Power specifications 23	3
2.8.1 Power consumption 23	3
2.8.2 Conducted noise 26	3
2.8.3 Voltage tolerance 26	3
2.8.4 Power-management modes 26	3
2.9 Environmental specifications 27	3
2.9.1 Ambient temperature 27	3
2.9.2 Temperature gradient 27	3
2.9.3 Humidity 27	3
2.9.4 Altitude 27	3
2.9.5 Shock 28	3
2.9.6 Vibration 28	3
2.10 Acoustics 29	3
2.11 Electromagnetic immunity 30	3
2.12 Reliability 31	3
2.13 Agency certification 31	3
2.13.1 Safety certification 31	3
2.13.2 Electromagnetic compatibility 31	3
2.13.3 FCC verification 32	3
2.14 Environmental protection 33	3
2.14.1 European Union Restriction of Hazardous Substances (RoHS) 33	3
2.15 Corrosive environment 33	3
3.0 Configuring and mounting the drive 35	3
3.1 Handling and static discharge precautions 35	3
3.2 Breather filter hole precautions 36	3
3.3 Jumper settings 37	3
3.3.1 Master/slave configuration 37	3
3.3.2 Cable-select option 37	3
3.3.3 Alternate capacity jumper 37	3
3.3.4 Ultra ATA/100 cable 38	3
3.4 Drive mounting 38	3
4.0 ATA interface 41	3
4.1 ATA interface signals and connector pins 41	3
4.1.1 Supported ATA commands 42	3
4.1.2 Identify Device command 44	3
4.1.3 Set Features command 48	3
4.1.4 S.M.A.R.T. commands 49	3
5.0 Seagate Technology support services 51	3
1.0 Introduction	7
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	26
2.2.1 LBA mode	26
2.3 Default logical geometry	26
2.4 Recording and interface technology	27
2.5 Physical characteristics	28
2.6 Seek time	28
2.7 Start/stop times	28
2.8 Power specifications	29
2.8.1 Power consumption	29
2.8.1.1 Typical current profile	31
2.8.2 Conducted noise	32
2.8.3 Voltage tolerance	32
2.8.4 Power-management modes	32
2.9 Environmental specifications	33
2.9.1 Ambient temperature	33
2.9.2 Temperature gradient	33
2.9.3 Humidity	33
2.9.3.1 Relative humidity	33
2.9.3.2 Wet bulb temperature	33
2.9.4 Altitude	33
2.9.5 Shock	34
2.9.5.1 Operating shock	34
2.9.5.2 Nonoperating shock	34
2.9.6 Vibration	34
2.9.6.1 Operating vibration	34
2.9.6.2 Nonoperating vibration	34
2.10 Acoustics	35
2.11 Electromagnetic immunity	36
2.12 Reliability	36
2.13 Agency certification	37
2.13.1 Safety certification	37
2.13.2 Electromagnetic compatibility	37
2.13.3 FCC verification	38
2.14 Environmental protection	38
2.14.1 European Union Restriction of Hazardous Substances (RoHS)	38
2.15 Corrosive environment	39
3.0 Configuring and mounting the drive	41
3.1 Handling and static discharge precautions	41
3.2 Breather filter hole precautions	42
3.3 Jumper settings	43
3.3.1 Master/slave configuration	43
3.3.2 Cable-select option	43
3.3.3 Alternate capacity jumper	43
3.3.4 Ultra ATA/100 cable	44
3.4 Drive mounting	44
4.0 ATA interface	47
4.1 ATA interface signals and connector pins	47
4.1.1 Supported ATA commands	48
4.1.2 Identify Device command	50
4.1.3 Set Features command	54
4.1.4 S.M.A.R.T. commands	55
5.0 Seagate Technology support services	57
Index	59
A	59
B	59
C	59
D	59
E	59
F	59
G	59
H	59
I	59
J	60
K	60
L	60
M	60
N	60
O	60
P	60
R	60
S	60
T	61
U	61
V	61

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Barracuda 7200.9 PATA Product Manual, Rev. F

2.8

Power specifications

The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.

2.8.1

Power consumption

Power requirements for the drives are listed in the table on page 25. Typical power measurements are based

on an average of drives tested, under nominal conditions, using +5.0V and +12.0V input voltage at 25°C ambi-

ent temperature.

•

Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.

•

Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does

not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-

case power consumption, using only random seeks with read or write latency time. This mode is not typical

and is provided for worst-case information.

•

Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec

delay, then a 16-sector read followed by a 32-msec delay.

•

Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each

10 reads) and 20 percent drive idle mode.

•

Idle mode power

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in

a random track location.

•

Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/

write electronics are in power-down mode.