Seagate ST34321A Product Manual - Page 21

Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B 13 1.8.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 15.0 Gs (based on half-sine shock pulses of 11 msec). Shocks are not to be repeated more than two times per second. 1.8.5.2 Nonoperating shock The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 75 Gs (based on nonrepetitive half-sine shock pulses of 11 msec duration) or 200 Gs (based on nonrepetitive half-sine shock pulses of 2 msec duration). Shock pulses are defined by MIL-STD-202F. 1.8.6 Vibration All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. Vibration may be applied in the X, Y or Z axis. 1.8.6.1 Operating vibration The following table lists the maximum vibration levels that the drive may experience while meeting the performance standards specified in this document. 5-22 Hz 22-350 Hz 0.02-inch displacement (peak to peak) 0.50 Gs acceleration (zero to peak) 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 22-350 Hz 0.08-inch displacement (peak to peak) 5.0 Gs acceleration (zero to peak)