Seagate ST5000AS0011 ユーザーズマニュアル
Seagate Archive HDD Product Manual, Rev. C
7
* 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