Travelstar 4K120 Hard Disk Drive Specification
35
6.5.2 Nonoperating vibration
The disk drive withstands the vibration levels described below without any loss or permanent damage.
6.5.2.1 Random vibration
The test consists of a random vibration applied in each of three mutually perpendicular axes for a duration of
15 minutes per axis. The PSD levels for the test simulating the shipping and relocation environment is shown
below.
Note:
Overall RMS (root mean square) level of vibration is 29.50 m/sec
2
(3.01 G).
6.5.2.2 Swept sine vibration
•
49 m/sec
2
(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
6.5.3 Operating shock
The hard disk drive meets the criteria in the table below while operating under these conditions:
•
The shock test consists of 10 shock inputs in each axis and direction for a total of 60.
•
There must be a minimum delay of 3 seconds between shock pulses.
•
The disk drive will operate without a hard error while subjected to the following half-sine shock pulse
The input level shall be applied to the normal disk drive subsystem mounting points used to secure the drive in a
normal system.
6.5.4 Nonoperating shock
The drive withstands the following half-sine shock pulse without any data loss or permanent damage.
Table 24: Random Vibration PSD Profile Breakpoints (nonoperating)
Hz
(m2/sec4)/Hz
2.5
0.096
5
2.88
40
1.73
500
1.73
Table 25: Operating shock
Duration of 1 ms
Duration of 2 ms
Duration of 11 ms
1568 m/sec
2
(160 G)
2940 m/sec
2
(300 G)
147 m/sec
2
(15 G)
Table 26: Nonoperating shock
Duration of 1 ms
Duration of 11 ms
9800 m/sec
2
(1000 G)
1470 m/sec
2
(150 G)
Содержание HTS421210H9AT00
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