Seagate Archive HDD Product Manual, Rev. C 7
www.seagate.com
* 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.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating
speed.
• Operating Read/Write power and current
Sequential read/write - 128 block transfer, QD=16, minimum 10 data points
Random read/write - 8 block transfer, QD=16, minimum 10 data points
Typical DC - average of average operating currents
Maximum DC - average of max operating currents
• Average Idle Current
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in
a random track location.
• EPC Idle/Standby/Sleep mode
The current is measured in the desired EPC idle/standby state.
Table 2: 5TB Drive DC power requirements
6.0Gb mode
Voltage
+5V +12V
Regulation
±5% ±5%
Avg Idle Current *
0.12 0.21
Advanced Idle Current *
Idle_A 0.11 0.21
Idle_B 0.12 0.21
Idle_C 0.12 0.21
Standby 0.11 0.005
Average Sleep Current
0.104 0.006
Maximum Start Current
DC (peak DC) 3 0.3 1.21
AC (peak DC) 3 0.49 2.01
Peak operating current (random read):
Typical DC 0.21 0.38
Maximum DC 3 0.21 0.39
Peak operating current (random write)
Typical DC 0.44 0.28
Maximum DC 3 0.45 0.29
Peak operating current (sequential read)
Typical DC 0.38 0.29
Maximum DC 3 0.44 0.31
Peak operating current (sequential write)
Typical DC 0.34 0.30
Maximum DC 3 0.35 0.31
