IBM DJSA-205, Specifications

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6.6 Vibration and shock
All vibration and shock measurements in this section are for hard disk drives without mounting attach-
ments for systems. The input level shall be applied to the normal drive mounting points.
Vibration tests and shock tests are to be conducted by mounting the drive to a table using the bottom four
mounting holes.
6.6.1 Operating vibration
The disk drive will operate without a hard error while being subjected to the following vibration levels.
6.6.1.1 Random vibration
The test will be 30 minutes of random vibration using the power spectral density (PSD) levels below. The
vibration test level is 0.67 G RMS
(Root Mean Square).
5.0 x E–4 500
5.0 x E–4 200
1.0 x E–3 150
1.0 x E–3 65
8.0 x E–3 62
8.0 x E–3 48
1.1 x E–3 45
1.1 x E–3 17
2.0 x E–5 5
m x 10
n
G
2
/Hz
Hz
DJSA-205/210/220/230/232
Random vibration PSD profile Breakpoint
Figure 26. Random vibration PSD profile breakpoints (operating)
6.6.1.2 Swept sine vibration
2.0 1 G (5-300 Hz)
1 G (300 Hz) - 0.33 G (350 Hz)
0.33 G (350-500 Hz)
DJSA-232
2.0 1 G (5-500 Hz) DJSA-205/210/220/230
Sweep rate (oct/min)
Swept sine vibration (zero to
peak 5 to 500 to 5 Hz sine wave)
Figure 27. Swept sine vibration
Travelstar 32GH/30GT/20GN hard disk drive specifications
34