7 start/stop times, 8 power specifications, 1 power consumption – Seagate BARRACUDA GREEN ST2000DL003 User Manual

Page 15: Start/stop times, Power specifications 2.8.1, Power consumption

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Barracuda Green SATA Product Manual, Rev. B

15

www.seagate.com

Drive Specifications

2.7

Start/stop times

2.8

Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. (Refer to

Figure 3

).

2.8.1 Power consumption

Power requirements for the drives are listed in

Table 2 on page 15

. 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.

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

* During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power

to operational levels.

†5W IDLE, Standby and Sleep,with DIPLM Enabled

Start/stop times @ 25°C

2000 and 1500GB models

Power-on to ready (max)

<17.0s

Standby to ready (max)

<17.0s

Ready to spindle stop (max)

10.0s

Table 2 DC power requirements

Power dissipation (3/2-disk values shown)

Avg (watts 25°C)

Avg 5V typ amps

Avg 12V typ amps

Spinup

2.0

Idle* †

4.5

0.151

0.303

Operating

5.8

0.440

0.300

Standby

0.50

0.085

0.01

Sleep

0.50

0.085

0.01

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