Drive specification | ST930817AM |
| ST930818AM | ST930817SM |
| ST930818SM |
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| (Rugged) | (Extreme) |
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Temperature gradient | 20°C/hour (operating) |
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(noncondensing) | 30°C/hour (nonoperating) |
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Relative humidity (noncondensing) | 5% to 90% (operating) |
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| 5% to 95% (nonoperating) |
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Relative humidity gradient (noncondensing) | 30% per hour max |
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Wet bulb temperature | 30°C (operating, max) |
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| 40°C (nonoperating, max) |
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Altitude, operating (Extreme models: |
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Altitude, operating (Rugged models: |
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Altitude, nonoperating (below mean sea level, max) |
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Shock, operating |
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at 2 msec | 300 Gs max |
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at 11 msec | 150 Gs max |
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Shock, nonoperating |
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at 2 msec | 800 Gs max |
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at 1 msec | 900 Gs max |
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at 0.5 msec | 400 Gs max |
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Vibration, operating (linear swept sine) | 2.0 Gs (0 to peak, |
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(max displacement may apply below 10 hz) |
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Vibration, nonoperating (linear swept sine) | 5.0 Gs (0 to peak, |
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(max displacement may apply below 22 hz) |
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Vibration, operating (linear random) | .003 G2/hz |
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Vibration, nonoperating (linear random) | .025 G2/Hz, 3.5 Grms | |||||
Drive acoustics, sound power |
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Idle** | 1.7 Bels (typical) |
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| 1.9 Bels (max) |
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Seek | 1.9 Bels (typical) |
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| 2.1 Bels (max) |
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Nonrecoverable read errors | 1 per 1014 bits read |
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Mean Time Before Failure (MTBF) | 1,000,000 |
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| At 8,760 POH (Power On Hours) per year |
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| Max ambient air temperature: 25°C. |
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Load/Unload (U/UL) cycles |
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25°C, 50% relative humidity | 1,200,000 |
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| 100,000 hard power on/off cycles |
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300,000 |
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85°C, 20% relative humidity (extreme models) | 100,000 hard power on/off cycles |
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300,000 |
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75°C, 20% relative humidity (rugged models) | 100,000 hard power on/off cycles |
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Service life | 10 years (form, fit, and function replacement) |
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Warranty | To determine the warranty for a specific drive, use a web browser to | |||||
| access the |
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| support.seagate.com/customer/warranty_validation.jsp |
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| You will be asked to provide the drive serial number, model number (or | |||||
| part number) and country of purchase. |
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| After submitting this information, the system will display the warranty | |||||
| information for your drive. |
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*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
**During periods of drive idle, some offline activity may occur, according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
***Typical host systems will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.
EE25.2 Series Product Manual, Rev. E | 11 |