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3 current requirements, Spin-up mode, Idle mode – Quantum 10K II User Manual

Page 63: Ecma seek mode

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Specifications

4-8

Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives

4.5.3.3 Current Requirements

Typical currents are at nominal supply voltages.

Spin-Up Mode

Typical / Maximum Current

9.2 GB

18.4 GB

36.7 GB

73.4 GB

5 Vdc Supply, Avg.

740.2 / 810* mA

686.0 / 820* mA

731.8 / 820* mA

719.5 / 820* mA

12 Vdc Supply, Avg.

2524.5 / 2850 mA,

peak

2475.1 / 2860 mA,

peak

2507.4 / 2860 mA,

peak

3221.5 / 3740 mA,

peak

* This value achieved during calibration.

Idle Mode

Maximum

9.2 GB

18.4 GB

36.7 GB

73.4 GB

5 Vdc Supply, Avg.

570 mA

580 mA

580 mA

570 mA

12 Vdc Supply, Avg.

490 mA

610 mA

610 mA

1030 mA

ECMA Seek Mode

Maximum

(ECMA Seeking)

9.2 GB

18.4 GB

36.7 GB

73.4 GB

5 Vdc Supply, Avg.

600 mA

610 mA

610 mA

590 mA

12 Vdc Supply, Avg.

960 mA

1080 mA

1080 mA

1450 mA

NOTE

ECMA Seek Rate is defined in ECMA standard 74. It corresponds to 52
random seeks per second.