Vibration And Shock; Operating Vibration; Figure 31. Random Vibration Psd Profile Breakpoints (Operating); Figure 32. Swept Sine Vibration - IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications

6.6 Vibration and shock

All vibration and shock measurements in this section are for hard disk drives without mounting attach-
ments for the 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 specified in
C-S 1-9711-002 (1990-03) as V5L. The vibration test level for V5L is 0.67 G RMS (Root Mean Square).
Hz
5
17
45
48
62
65
150
200
500

Figure 31. Random vibration PSD profile breakpoints (operating)

6.6.1.2 Swept sine vibration
Model
48 GB model
All other models

Figure 32. Swept sine vibration

2
G /Hz
2.0 x 10
1.1 x 10
1.1 x 10
8.0 x 10
8.0 x 10
1.0 x 10
1.0 x 10
5.0 x 10
5.0 x 10
Swept sine vibration (zero to
peak 5 to 500 to 5 Hz sine wave)
1 G (5–300 Hz)
1 G (300 Hz) – 0.33 G (350 Hz)
0.33 G (350–500 Hz)
1 G (5–500 Hz)
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
5
3
3
3
3
3
3
4
4
37
Sweep rate
(oct/min)
2.0
2.0