Seagate ST240FP0021 ユーザーズマニュアル

S

EAGATE 

600 P

RO 

SSD P

RODUCT 

M

ANUAL

, R

EV

. A

  7

  

Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of 
drives tested, under nominal conditions, at 35°C ambient temperature.
• Startup power

Startup power is measured from the time of power-on to the time that the drive reaches operating condition and can pro-
cess media access commands.

During peak operating mode, the drive is tested in various read and write access patterns to simulate the worst-case 
power consumption.

Idle mode power is measured with the drive powered up and ready for media access commands, with no media access 
commands having been received from the host.

During Standby mode, the drive accepts commands, but not be able to immediately access the media because the drive 
electronics are in a partial power-down mode.

Average Idle Current

0.44

2.21

Average Sleep Current

0.09

0.47

Maximum Start Current

DC (Peak DC)

0.54

2.72

AC (Peak AC)

0.99

4.97

Delayed Motor Start (DC max)

0.10

0.48

Peak Operating Current (random read):

Typical DC

0.38

1.92

Maximum DC

0.39

1.96

Maximum DC (peak)

1.02

5.10

Peak Operating Current (random write):

Typical DC

0.55

2.76

Maximum DC

0.57

2.84

Maximum DC (peak)

1.44

7.20

Peak Operating Current (sequential read):

Typical DC

0.48

2.39

Maximum DC

0.49

2.43

Maximum DC (peak)

1.00

5.00

Peak Operating Current (sequential write):

Typical DC

0.62

3.12

Maximum DC

0.63

3.17

Maximum DC (peak)

1.38

6.90

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