Seagate ST32122A Product Manual - Page 22

14 Medalist 4342, 3232, 2122, 1722 and 1012 Product Manual 1.8.6.2 Nonoperating vibration The following 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 22-350 Hz 0.2-inch displacement to 5.0 Gs 5.0 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. Mode Idle Read/Write Typical sound power (bels) 3.7 4.3 Maximum sound power (bels) 4.1 4.6 1.10 Electromagnetic susceptibility The drive operates without errors when subjected to the following: Radiated noise* Electrostatic discharge* Magnetic field strength ≤ 3 volt/meter, 30 Hz to 1 GHz ≤ 10 KVolts ≤ 5 Gauss * Electrostatic discharge and radiated noise susceptibility are 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 Mean time between failures 1 per 1014 bits read, max 300,000 power-on hours (nominal power, 25°C ambient temperature)