Seagate ST91000642NS Effective altitude sea level, Shock, Operating shock, Nonoperating shock

3.9.3Effective altitude (sea level)

a.Operating

-200 to +10,000 feet (-61 to +3,048 meters)

b.Non-operating

-200 to +40,000 feet (-61 to +12,210 meters)

3.9.4Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis.

3.9.4.1Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of Read 70 Gs and Write 40 Gs based on half-sine shock pulses of 2ms. Shocks should not be repeated more than once every 2 seconds.

3.9.4.2Nonoperating shock

The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 400 Gs based on a nonrepetitive half-sine shock pulse of 2ms duration.

18 Constellation.2 Serial ATA Product Manual, Rev. B