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22 Savvio 10K.5 SAS Product Manual, Rev. D
Table 2: 900GB standard drive DC power requirements
Notes
3.0Gb mode 6.0Gb mode
(Amps) (Amps) (Amps) (Amps)
Voltage +5V +12V [2] +5V +12V [2]
Regulation [6] ±5% ±5% [2] ±5% ±5% [2]
Avg idle current DC [1] [8] 0.35 0.22 0.35 0.22
Advanced Idle Current
Idle_A 3σ 0.40 0.24 0.40 0.24
Idle_B 3σ 0.27 0.20 0.27 0.21
Idle_C 3σ 0.27 0.11 0.27 0.11
Standby 3σ 0.26 0.06 0.27 0.06
Transition Current
Idle_A 3σ 1.34 1.62 1.34 1.63
Idle_B 3σ 0.94 1.66 0.85 1.65
Idle_C 3σ 0.91 1.56 0.90 1.56
Standby 3σ 0.93 1.61 0.89 1.64
Maximum starting current
(peak DC) DC 3σ [3] 0.62 1.00 0.63 1.00
(peak AC) AC 3σ [3] 1.06 1.67 0.98 1.67
Delayed motor start (max) DC 3σ [1] [5] 0.45 0.09 0.46 0.07
Peak operating current (random read):
Typical DC [1] [7] 0.45 0.48 0.46 0.48
Maximum DC 3σ [1] 0.52 0.51 0.51 0.48
Maximum (peak) DC 3σ 1.33 1.54 1.33 1.53
Peak operating current (random write)
Typical DC
[1]
0.53 0.45 0.53 0.45
Maximum DC 3σ [1] 0.60 0.48 0.60 0.48
Maximum (peak) DC 3σ 1.19 1.60 1.13 1.54
Peak operating current (sequential read)
Typical DC
[1]
0.82 0.24 0.82 0.24
Maximum DC 3σ [1] 0.91 0.25 0.91 0.25
Maximum (peak) DC 3σ 1.18 0.49 1.25 0.46
Peak operating current (sequential write)
Typical DC
[1]
0.89 0.24 0.89 0.24
Maximum DC 3σ [1] 0.97 0.25 0.96 0.25
Maximum (peak) DC 3σ 1.25 0.40 1.17 0.42