Seagate SurveiSRS HDD Product Manual, Rev. D
11
www.seagate.com
2.7
Start/stop times
Start/stop times @ 25
°
C
Power-on to ready (max)
Standby to ready (max)
Ready to spindle stop (max)
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 3 on page 12
. 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 (CE profile)
Operating power is measured by simulating a typical PVR operating environment, using a 50% write, 50%
read algorithm.
• 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.
3TB & 2TB model
1TB model
<17.0s
< 6.0s
<17.0s
< 6.0s
10.0s
10.0s
