7.4.4.2Vibration a. Operating—normal
The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding
10 – 300 Hz | 1.0 G RMS (0 to peak) |
301– 500 Hz | 0.5 G RMS (0 to peak) |
Vibration may be applied in the X, Y, or Z axis.
b.
Equipment as installed for normal operation shall not incur physical damage while subjected to periodic vibration not exceeding:
15 minutes of duration at major resonant frequency
Vibration occurring at these levels may degrade operational performance during the abnormal vibration period. Specified operational performance will continue when normal operating vibration levels are resumed. This assumes system recovery routines are available.
Operating abnormal translational random flat profile
5 – 500 Hz | 0.75 G (0 to peak) |
10 - 300 Hz | 0.0029 G2/Hz |
c.
The limits of
The drive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding
5 – 22 Hz | 0.25 G (0 to peak, linear, swept sine, 0.5 octive/min) |
22 - 350 Hz | 3 G (0 to peak, linear, swept sine, 0.5 octive/min) |
350 - 500 Hz | 1 G (0 to peak, linear, swept sine, 0.5 octive/min) |
Vibration may be applied in the X, Y, or Z axis.
7.4.5Acoustics
Sound power during idle mode shall be 3.4 bels typical when measured to ISO 7779 specification. Sound power while operating shall be 3.8 bels typical when measured to ISO 7779 specification.
There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea- sured according to Seagate specification
7.4.6Air cleanliness
The drive is designed to operate in a typical office environment with minimal environmental control.
Cheetah 15K.7 FC Product Manual, Rev. C | 33 |
