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Drive specifications
2.6
Environmental limits
Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive
part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C).
NOTE
To maintain optimal performance drives should be run at nominal drive temperatures
and humidity.
See Section 2.9, "Reliability" for rated MTBF device operating condition requirements.
2.6.1
Temperature
a. Operating
41°F to 140°F (5°C Ambient to 60°C drive reported) temperature range with a maximum temperature gradient of 36°F (20°C) per
hour as reported by the drive.
The maximum allowable drive reported temperature is 140°F (60°C).
Air flow may be required to achieve consistent nominal drive temperature values (see Section 3.4). To confirm that the required
cooling is provided for the electronics and HDA, place the drive in its final mechanical configuration, and perform random write/read
operations. After the temperatures stabilize, monitor the current drive temperature using the SMART temperature attribute 194 or
Device Statistics log 04h page 5.
b. Non-operating
–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the
drive is packaged in the shipping container designed by Seagate for use with drive.
2.6.2
Humidity
The values below assume that no condensation on the drive occurs. Maximum wet bulb temperature is 84.2°F (29°C).
2.6.2.1
Relative humidity
Operating:
5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
Nonoperating:
5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
2.6.3
Effective Altitude (sea level)
Operating:
–304.8 m to 3048 m (–1000 ft. to 10,000+ ft.)
Nonoperating:
–304.8 m to 12,192 m (–1000 ft. to 40,000+ ft.)
2.6.4
Shock and Vibration
Shock and vibration measurements specified in this document are made directly on the drive itself and applied in the X, Y,
and Z axis at the drive mounting point locations.
2.6.4.1
Shock
a. Operating
The drive will operate without error while subjected to intermittent shock pulses not exceeding 40 Gs typical at a 2ms duration limited
by Z-axis, shown in Figure 2.
b. Non-operating
The drive will operate without non-recoverable errors after being subjected to shock pulses not exceeding 200g at a duration of 2ms.
Seagate Exos X24 SATA Product Manual, Rev. C
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