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1.8.6.2 Nonoperating vibration
The following table lists the maximum nonoperating vibration that the
drive may experience without incurring physical damage or degradation
in performance when put into operation.
5–22 Hz 0.162-inch displacement (double amplitude)
22–450 Hz 4 Gs acceleration (peak)
450–22 Hz 4 Gs acceleration (peak)
22–5 Hz 0.162-inch displacement (double amplitude)
1.9 Drive acoustics
Drive acoustics are measured as sound pressure 1 meter from the drive.
Mode Typical Maximum
Idle mode (dBA) 26 30
Seek (dBA) 29 33
1.10 Reliability
Nonrecoverable read errors 1 per 10
13
bits read
Mean time between failures 300,000 power-on hours
(nominal power, at sea level,
25°C ambient temperature)
Contact start-stop cycles 50,000 cycles
(at nominal voltage and temperature,
with 60 cycles per hour and a 50%
duty cycle)
Preventive maintenance None required
Service life 5 years
12 Marathon 810 (ST9816AG) Product Manual, August 1995