Seagate ST9900805SS Savvio 10K.4 SAS Product Manual - Page 30

Table 2, DC power requirements

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Table 2: 600GB standard drive DC power requirements Voltage Regulation Avg idle current DC Advanced Idle Current Idle_A Idle_B Idle_C Standby Transition Current Idle_A - Active Idle_B - Active Idle_C - Active Standby - Active Maximum starting current (peak DC) DC (peak AC) AC Delayed motor start (max) DC Peak operating current (random read): Typical DC Maximum DC Maximum (peak) DC Peak operatig current (random write) Typical DC Maximum DC Maximum (peak) DC Peak operating current (sequential read) Typical DC Maximum DC Maximum (peak) DC Peak operating current (sequential write) Typical DC Maximum DC Maximum (peak) DC Notes [6] [1] [8] 600GB standard model 3.0Gb mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.33 0.24 3σ 0.32 0.24 3σ 0.23 0.21 3σ 0.23 0.11 3σ 0.23 0.06 3σ 0.72 1.58 3σ 0.68 1.53 3σ 0.64 1.53 3σ 0.64 1.61 3σ [3] 0.51 0.87 3σ [3] 0.75 1.63 3σ [1] [5] 0.46 0.07 [1] [7] 0.43 0.51 3σ [1] 0.44 0.52 3σ 1.06 1.54 0.48 0.42 3σ 0.49 0.44 3σ 1.02 1.54 0.82 0.26 3σ 0.86 0.27 3σ 1.12 0.42 0.80 0.25 3σ 0.82 0.27 3σ 1.02 0.66 600 GB standard model 6.0Gb mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.34 0.24 0.33 0.24 0.24 0.21 0.24 0.10 0.24 0.05 0.70 1.42 0.66 1.51 0.66 1.51 0.68 1.61 0.53 0.87 0.86 1.65 0.47 0.07 0.44 0.51 0.46 0.52 1.10 1.52 0.50 0.42 0.50 0.44 1.04 1.56 0.84 0.27 0.88 0.27 1.16 0.42 0.81 0.25 0.83 0.27 1.04 0.76 22 Savvio 10K.4 SAS Product Manual, Rev. C

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22
Savvio 10K.4 SAS Product Manual, Rev. C
Table 2:
600GB standard drive
DC power requirements
Notes
600GB standard model
3.0Gb mode
600 GB standard model
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]
0.33
0.24
0.34
0.24
Advanced Idle Current
Idle_A
3
σ
0.32
0.24
0.33
0.24
Idle_B
3
σ
0.23
0.21
0.24
0.21
Idle_C
3
σ
0.23
0.11
0.24
0.10
Standby
3
σ
0.23
0.06
0.24
0.05
Transition Current
Idle_A - Active
3
σ
0.72
1.58
0.70
1.42
Idle_B - Active
3
σ
0.68
1.53
0.66
1.51
Idle_C - Active
3
σ
0.64
1.53
0.66
1.51
Standby - Active
3
σ
0.64
1.61
0.68
1.61
Maximum starting current
(peak DC) DC
3
σ
[3]
0.51
0.87
0.53
0.87
(peak AC) AC
3
σ
[3]
0.75
1.63
0.86
1.65
Delayed motor start (max) DC
3
σ
[1] [5]
0.46
0.07
0.47
0.07
Peak operating current (random read):
Typical DC
[1] [7]
0.43
0.51
0.44
0.51
Maximum DC
3
σ
[1]
0.44
0.52
0.46
0.52
Maximum (peak) DC
3
σ
1.06
1.54
1.10
1.52
Peak operatig current (random write)
Typical DC
0.48
0.42
0.50
0.42
Maximum DC
3
σ
0.49
0.44
0.50
0.44
Maximum (peak) DC
3
σ
1.02
1.54
1.04
1.56
Peak operating current (sequential read)
Typical DC
0.82
0.26
0.84
0.27
Maximum DC
3
σ
0.86
0.27
0.88
0.27
Maximum (peak) DC
3
σ
1.12
0.42
1.16
0.42
Peak operating current (sequential write)
Typical DC
0.80
0.25
0.81
0.25
Maximum DC
3
σ
0.82
0.27
0.83
0.27
Maximum (peak) DC
3
σ
1.02
0.66
1.04
0.76