IBM DJSA-210 Hard Drive Specifications - Page 49

Nonoperating vibration, 6.3 Operating shock, 6.2.1 Random vibration, 6.2.2 Swept sine vibration

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6.6.2 Nonoperating vibration The disk drive withstands the following vibration levels without any loss or permanent damage. 6.6.2.1 Random vibration The test consists of a random vibration applied in each of three mutually perpendicular axes with the time duration of 15 minutes per axis. The PSD levels for the test simulating the shipping and relocation environment is shown below. Hz 2.5 5 40 500 Note: Overall RMS level of vibration is 3.01 G. G2/Hz 0 0.03 0.02 0.02 Figure 28. Random Vibration PSD Profile Breakpoints (nonoperating) 6.6.2.2 Swept sine vibration ! 5 G (zero-to-peak), 5 to 500 to 10 Hz sine wave ! 0.5 oct/min sweep rate ! 25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz 6.6.3 Operating shock The hard disk drive meets the following criteria while operating in the conditions described below. The shock test consists of ten shock inputs in each axis and direction for a total of 60. There must be a minimum 3 seconds delay between shock pulses. The disk drive will operate without a hard error while being subjected to the following half-sine shock pulse. Model DJSA-232 DJSA-230/220/210/205 Duration of 2 ms 150 G 175 G Duration of 11 ms 15 G 15 G Figure 29. Operating shock The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a normal system. Travelstar 32GH/30GT/20GN hard disk drive specifications 35

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6.6.2 Nonoperating vibration
The disk drive withstands the following vibration levels without any loss or permanent damage.
6.6.2.1 Random vibration
The test consists of a random vibration applied in each of three mutually perpendicular axes with the time
duration of 15 minutes per axis. The PSD levels for the test simulating the shipping and relocation envi-
ronment is shown below.
0.02
500
0.02
40
0.03
5
0
2.5
G
2
/Hz
Hz
Note: Overall RMS level of vibration is 3.01 G.
Figure 28. Random Vibration PSD Profile Breakpoints (nonoperating)
6.6.2.2 Swept sine vibration
!
5 G (zero-to-peak), 5 to 500 to 10 Hz sine wave
!
0.5 oct/min sweep rate
!
25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz
6.6.3 Operating shock
The hard disk drive meets the following criteria while operating in the conditions described below.
The shock test consists of ten shock inputs in each axis and direction for a total of 60.
There must be a minimum 3 seconds delay between shock pulses.
The disk drive will operate without a hard error while being subjected to the following half-sine shock
pulse.
15 G
175 G
DJSA-230/220/210/205
15 G
150 G
DJSA-232
Duration of 11 ms
Duration of 2 ms
Model
Figure 29. Operating shock
The input level shall be applied to the normal disk drive subsystem mounting points used to secure the
drive in a normal system.
Travelstar 32GH/30GT/20GN hard disk drive specifications
35