Seagate ST3285N, Product Manual

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You can pre-empt the automatic compensation by issuing a Rezero Unit
command (01
H
). The drive performs the thermal calibration and then sets
a timer and waits 2 minutes before performing the calibration again.
Thermal compensation increases the execution time of the command
during which it is performed by 100 msec (typ) to 350 msec (max).
1.8 Environmental
This section specifies acceptable environmental conditions for the drive.
The operating specifications assume that the drive is powered up. The
nonoperating specifications assume that the drive is packaged as it was
shipped from the factory.
1.8.1 Ambient temperature
Operating 5°C to 55°C (41°F to 131°F)
Nonoperating –40°C to 70°C (–40°F to 158°F)
1.8.2 Temperature gradient
Operating 20°C per hour (36°F per hour)
Nonoperating 30°C per hour (54°F per hour)
1.8.3 Relative humidity
Operating 8% to 80% noncondensing
Maximum wet bulb 26°C (79°F)
Operating gradient, max 10% per hour
Nonoperating 5% to 95% noncondensing
Maximum wet bulb 26°C (79°F)
1.8.4 Altitude
Operating –1,000 ft to 10,000 ft (–305 m to 3,048 m)
Nonoperating –1,000 ft to 40,000 ft (–305 m to 12,192 m)
4 ST3655 Family SCSI Drives Product Manual, Rev. A