Seagate ST2000DX001 Handbuch PDF herunterladen (Seite 19)

Desktop SSHD Product Manual, Rev. A 19

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Drive Specifications

2.9.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum

operating shock of 80 Gs based on half-sine shock pulses of 2 ms during read operations. Shocks should not be

repeated more than two times per second.

2.9.5.2 Non-operating shock

2TB model

The non-operating shock level that the drive can experience without incurring physical damage or degradation in

performance when subsequently put into operation is 300 Gs based on a non-repetitive half-sine shock pulse of

2 ms in duration.

1TB model

The non-operating shock level that the drive can experience without incurring physical damage or degradation in

performance when subsequently put into operation is 350 Gs based on a non-repetitive half-sine shock pulse of

2 ms in duration.

2.9.5.3 Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards specified

in this document are specified below.

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive

mounting screws. Vibration may be applied in the X, Y or Z axis. Throughput may vary if improperly mounted.

2.9.6 Non-operating vibration

The maximum non-operating vibration levels that the drive may experience without incurring physical damage or

degradation in performance when subsequently put into operation are specified below.

2.10 Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All

measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially

free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

2Hz to 22Hz 0.25 Gs (Limited displacement)

22Hz to 350Hz 0.50 Gs

350Hz to 500Hz 0.25 Gs

5Hz to 22Hz 3.0 Gs (Limited displacement)

22Hz to 350Hz 3.0 Gs

350Hz to 500Hz 3.0 Gs

Note

For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the

following equation:

(Number of seeks per second = 0.4 / (average latency + average access time

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Seagate ST2000DX001 Handbuch Seite 19