Environmental Specifications; Shock; Vibration - Seagate BARRACUDA COMPUTE ST4000DMZ04 Product Manual

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.
Table 5: Environmental specifications
Parameters Operating
Ambient temperature 0° to 60°C (32° to 140°F)
Temperature gradient 20°C per hour (68°F per hour) max, without condensation
Humidity 5% to 95% non-condensing (30% per hour)
Wet bulb 37.7°C (99.8°F) max
Altitude -304.8m to 3048m
(-1000ft to 10,000ft)
The recommended storage period:
• 1 year under controlled conditions of 34°C 90%RH or less
Note
• 90 days in uncontrolled storage conditions
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 subjected 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 subsequently
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 performance standards specified in this document are specified
below.
10-500 Hz, Sequential
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.
5-500 Hz, Random
Seagate BarraCuda Product Manual, Rev. J
0.7 Grms
2.2 Grms
Non-Operating
-40° to 70°C (-40° to 158°F)
35°C per hour (95°F per hour) max, without condensation
5% to 95% non-condensing (30% per hour)
40°C (104°F) max
-304.8m to 12,192m
(-1000ft to 40,000ft)
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