9.6
Vibration and shock
All vibration and shock measurements in this section are for the disk drive without the mounting
attachments for specific systems. The input level requirements for all vibration and shock measurements
in this specification mandates that mounting be applied to the normal drive mounting points.
9.6.1 Operating vibration
9.6.1.1 Random vibration
The hard disk drive meets IBM Standard C-S 1-9711-002 (1990-03) for the V5L applied to the horizontal
direction and V4 applied to the vertical direction. The test consists of 30 minutes of random vibration
using the power spectral density (PSD) levels shown in the following table. The test is applied in each of
three mutually perpendicular axes. The disk drive will operate without non-recoverable errors when
subjected to the above random vibration levels.
0.560.080.081.01.08.08.01.11.10.02
Vertical
x10
-3
(G
2
/Hz)
0.670.50.51.01.08.08.01.11.10.02
Horizontal
x10
-3
(G
2
/Hz)
Direction
RMS
(G)
50020015065624845175Frequency (Hz)
Figure 53. Random vibration PSD profile break points—operating
The overall RMS (Root mean square) level is 0.67 G for horizontal vibration and 0.56 G for vertical.
9.6.1.2 Swept sine vibration
The hard disk drive will meet the criteria shown below while operating in the specified conditions:
y
No errors
occur with 0.5 G 0–peak, 5–300–5 Hz sine wave, 0.5 oct/min sweep rate with 3-minute
dwells at 2 major resonances.
y
No data loss
occurs with 1 G 0–peak, 5–300–5 Hz sine wave, 0.5 oct/min sweep rate with 3-minute
dwells at 2 major resonances.
9.6.2 Nonoperating vibration
The drive will not sustain permanent damage or loss of previously recorded data after being subjected to
the following environmental conditions.
Deskstar 60 GXP Hard disk drive specification
54
To Next Page
Loading...
