Seagate ST3450856FC ユーザーズマニュアル

Cheetah 15K.6 FC Product Manual, Rev. A

35

a. Operating—normal

The drive as installed for normal operation, shall comply with the complete specified performance while 
subjected to continuous vibration not exceeding

10–500 Hz @ 0.5 G (zero to peak)

Vibration may be applied in the X, Y, or Z axis.

Operating normal translational random flat profile

10–500 Hz

0.4 g RMS

b. Operating—abnormal

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

10–500 Hz @ 0.75 G (X, Y, or Z axis)

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

10–500 Hz

1.2 g RMS

c. Non-operating

The limits of non-operating vibration shall apply to all conditions of handling and transportation. This 
includes both isolated drives and integrated drives.

The drive shall not incur physical damage or degraded performance as a result of continuous vibration not 
exceeding

5–500 Hz at 3G

 

Amplitudes above 1.0 G in the frequency range of 5-20 Hz may be limited due to shaker equipment stroke 
limitations.

Vibration may be applied in the X, Y, or Z axis.

Non-operating translational random flat profile

10–500 Hz

1.2 g RMS

Sound power during idle mode shall be 3.5 bels typical when measured to ISO 7779 specification. Sound 
power while operating shall be 3.7 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 30553-001. There will not be any tones more than 24 dB above the 
masking noise on any drive.

The drive is designed to operate in a typical office environment with minimal environmental control.

Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to 
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM 
B845. However, this accelerated testing cannot duplicate every potential application environment.