Seagate EE25.2 ユーザーズマニュアル

EE25.2 Series Product Manual, Rev. B

5

*

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 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

Relative humidity (noncondensing)

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

15% per hour max

Wet bulb temperature

30°C (operating, max)

 

40°C (nonoperating, max)

Altitude, operating (-30°C to 85°C) 

–304.8 m to 5,000 m (–1000 ft to 16,400 ft)

Altitude, nonoperating (below mean sea level, max)

–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)

Shock, operating

 

     at 2 msec

 

     at 11 msec

 

300 Gs max

 

150 Gs max

Shock, nonoperating

 

     at 2 msec

 

     at 1 msec

 

     at 0.5 msec

 

800 Gs max

 

900 Gs max

 

400 Gs max

Vibration, operating (swept sine)

 

(max displacement may apply below 10 hz)

2.0 G (5 - 500 Hz)

 

Vibration, nonoperating

 

(max displacement may apply below 22 hz)

5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis 0, 22, 45° angles)

Drive acoustics, sound power

     Idle**

2.2 Bels (typical)

 

2.4 Bels (max)

     Normal seek

2.5 Bels (typical)

 

2.7 Bels (max)

     Performance seek

2.9 Bels (typical)

 

3.1 Bels (max)

Nonrecoverable read errors

1 per 10

14

 bits read

Mean Time Before Failure (MTBF)

1,000,000 power-on hours

 

At 8,760 POH (Power On Hours) per year

 

Max ambient air temperature: 25°C.

Load/Unload (U/UL) cycles

 

 

25°C, 50% relative humidity

 

 

 

32°C, 80% relative humidity 

 

5°C, 80% relative humidity 

 

5°C, 20% relative humidity 

 

60°C, 20% relative humidity

 

-30°C, 0% relative humidity

 

 

 

1,200,000 software-controlled power on/off cycles

 

100,000 hard power on/off cycles

 

 

600,000 software-controlled power on/off cycles

 

20,000 hard power on/off cycles

 

 

 

300,000 software-controlled

 

100,000 hard power on/off cycles

Service life

10 years (form, fit, and function replacement)

Warranty

1 year standard (up to 5 years max with additional warranty purchase).
To determine the warranty for a specific drive, use a web browser to access the 
following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to 
provide the drive serial number, model number (or part number) and country of 
purchase. The system will display the warranty information for your drive.