Seagate 810 manual Nonoperating vibration, Drive acoustics, Reliability, Mode Typical

12 Marathon 810 (ST9816AG) Product Manual, August 1995

1.8.6.2Nonoperating 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 1013 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