Seagate BarraCuda Product Manual, Rev. E (Draft 2) 12
2.9 Environmental Specifications
This section provides the temperature, humidity, shock, and vibration specifications for Seagate BarraCuda drives.
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
2.9.1 Shock
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.
2.9.1.1 Operating shock
These drives comply with the performance levels specified in this document when subjec
ted to a maximum operating shock of 300 Gs based on
half-sine shock pulses of 2 ms. Shocks should not be repeated more than one time per axis.
Shocks should not be repeated more than one time per axis. There must be a minimum delay of 3 seconds between pulses.
2.9.1.2 Non-operating shock
The non-operating shock level that the drive can experience without incurring physical damage or degradation in performance when subseq
uently
put into operation is 650 Gs based on a non-repetitive half-sine shock pulse of 1 ms duration.
2.9.2 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.
2.9.2.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the pe
rformance standards specified in this document are specified
below.
2.9.2.2 Non-operating vibration
The maximum non-operating vibration levels that the drive may experience without incurring physical damage or degradation in performance
when subsequently put into operation are specified below.
Table 5: Environmental specifications
Parameters Operating
Non-Operating
Ambient temperature 0° to 60°C (32° to 140°F) -40° to 70°C (-40° to 158°F)
Temperature gradient 20°C per hour (68°F per hour) max, without condensation 35°C per hour (95°F per hour) max, without condensation
Humidity 5% to 95% non-condensing (30% per hour) 5% to 95% non-condensing (30% per hour)
Wet bulb 37.7°C (99.8°F) max 40°C (104°F) max
Altitude -304.8m to 3048m
(-1000ft to 10,000ft)
-304.8m to 12,192m
(-1000ft to 40,000ft)
Note
The recommended storage period:
• 1 year under controlled conditions of 34°C 90%RH or less
• 90 days in uncontrolled storage conditions
5-500 Hz, Sequential 0.7 Grms
5-500 Hz, Random 3.52 Grms
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