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Power Supply Current
SATA, 6TB, Block Size 4k, 6Gb/sec
Model: SATA @ 6Gb/sec
6TB Model
Block size: 4k
Current
Current
Power
IO/Sec
+5V Amp
+12V Amp
Watts
Start up Peak DC [1]
0.32
1.53
Start up Peak AC
0.59
2.07
Idle_0, Avg
0.21
0.40
5.9
Idle Ripple
0.13
0.29
Random Peak [4]
0.52
1.85
Random RW 8kB Qd=1 Avg
40
0.23
0.49
7.0
Random RW 4kB Qd=1 Avg
138
0.23
0.59
8.2
Random RW 4kB Qd=4 Avg
202
0.24
0.81
11.0
Random R 4kB Qd=8 Avg [5]
230
0.24
0.81
10.9
Sequential Read Peak [4]
0.62
Sequential Read Avg [2]
0.52
0.42
7.6
Sequential Write Peak [4]
0.48
Sequential Write Avg [2]
0.42
0.46
7.6
Recovery [1]
Power Save Modes
Current
Power
Power
Saved
12V AC
(PHY state: Active)
+5V Amp
+12V Amp
Watts
Watts[3]
12V DC
Peak
Peak
Idle_A
0.21
0.40
5.9
0.0
Idle_B
0.12
0.34
4.7
1.2
Idle_C
0.12
0.25
3.6
2.3
1.00
1.17
Standby_Y
0.12
0.25
3.6
2.3
1.00
1.17
Sleep, Standby_Z
0.11
0.005
0.6
5.3
1.56
1.78
PHY power condition
Partial
0.2
Slumber
0.2
Notes
Sample size
10 HDD per model
Temperature
DE temperature = 40°C (25°C for Spin up)
Write Cache Enable
Off
Bandwidth
All measurements are bandwidth limited to 20MHz
PHY
Single port, 6Gb/s
[1] 200ms windowed average
[2] Max transfer rate
[3] Power saved compared to Idle_0
[4] Maximum single peak in test samples
[5] Maximum power workload
Table 15 SATA Power Consumption, 6TB, 4k
36
Western Digital Ultrastar DC HC310 SATA Product Manual