Seagate 3240 Nonoperating vibration, Drive acoustics, Electromagnetic susceptibility, Reliability

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 13

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 subsequently put into operation.

5–22 Hz	0.081-inch displacement (peak to peak)
22–350 Hz	5 Gs acceleration (zero to peak)

1.9 Drive acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are generally consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

	Typical sound	Maximum sound
Mode	power (bels)	power (bels)
Idle	3.7	4.1
Read/Write	4.3	4.5

1.10 Electromagnetic susceptibility

The drive operates without errors when subjected to the following:

Radiated noise	≤ 3 volt/meter, 30 Hz to 1 GHz
Electrostatic discharge*	≤ 10 KVolts
Magnetic field strength	≤ 5 Gauss

*Electrostatic discharge susceptibility is measured with the drive mounted in a representative computer system (mounted to a ground plane with earth grounding). Discharges are applied to the bezel or other external surfaces on the ground plane.

1.11 Reliability

Nonrecoverable read errors	1 per 1014 bits read, max
Mean time between failures	300,000 power-on hours
	(nominal power, 25°C ambient
	temperature)