Operating Shock; Non-Operating Shock - IBM IC35L036UWDY10 - Ultrastar 36.7 GB Hard Drive Specifications

Overall RMS (Root Mean Square) level of vibration is 1.04G (RMS).
The disk drive does not sustain permanent hardware damage or loss of previously recorded data after
being subjected to the environment described above.
7.8.2.2 Swept sine vibration
! 2 G (Zero to peak), 5 to 500 to 5 Hz sine wave
! 0.5 oct/min sweep rate

7.8.3 Operating shock

The drive meets the following criteria:
! No data loss with 10G, 11 ms half-sine shock pulse
! No data loss with 45G, 2 ms half-sine shock pulse
The shock pulses of each level are applied to the drive, ten pulses for each direction and for all three
axes. There must be a minimum of 30 seconds delay between shock pulses. The input level is applied to
a base plate where the drive is attached with four screws.

7.8.4 Non-operating shock

The drive withstands the following square shock pulse with no permanent damage:
! Accelerating level of 50 G
! Duration time of 11 ms
! Rise and fall time of 1 ms
! Minimum velocity change of 4.23 ms
The drive withstands the following half-sine shock pulse:
! No data loss with 75G, 11 ms
! No data loss with 225G, 2 ms (146-GB model)
! No data loss with 300G, 2 ms (all other models)
The shocks are applied in each direction of the drive for three mutually perpendicular axes and one axis at
a time. Input levels are measured on a base plate where the drive is attached with four screws.
The drive withstands the following Rotational Shock:
! No data loss with Rotational Shock 30000rad/s
NOTE: Actuator is automatically locked at power-off to keep the heads on a landing zone.
2
, 1 ms applied around the axis of actuator pivot.
Ultrastar 146Z10 hard disk drive specifications
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