Hitachi 7K100 Hard Drive Specifications - Page 45
Nonoperating vibration, Operating shock, Nonoperating shock
UPC - 683728198671
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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. Table 20: Random Vibration PSD Profile Breakpoints (nonoperating) Hz (m2/sec4)/Hz 2.5 0.096 5 2.88 40 1.73 500 1.73 Note: Overall RMS (root mean square) level of vibration is 29.50 m/sec2 (3.01 G). 6.5.2.2 Swept sine vibration • 49 m/sec2 (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 Table 21: Operating shock Duration of 1 ms 1568 m/sec2 (160 G) Duration of 2 ms 2940 m/sec (300 G) Duration of 11 ms 147 m/sec2 (15 G) 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 22: Nonoperating shock Duration of 1 ms 9800 m/sec2 (1000 G) Duration of 11 ms 1470 m/sec2 (150 G) Travelstar 7K100 Hard Disk Drive Specification 31