Seagate ST98823SB ユーザーズマニュアル

4

Momentus 5400.2 SATA Blade Server Product Manual, Rev. B

Track-to-track seek time 

 

(msec typical)

1.0 (read), 1.5 (write)

Average seek, read (msec typical)

12.5

Average seek, write (msec typical)

14.5

Seek power (typical)

2.20 watts

Read/write power (typical)

Read: 1.90 watts; Write: 2.30 watts

Idle mode, low power (typical)

0.80 watts

Standby mode (typical)

0.28 watts**

Sleep mode (typical)

0.28 watts**

Voltage tolerance (including noise)

+5.0V ± 5%

Ambient temperature 

5° to 55°C (operating), –40° to 70°C (nonoperating)

Temperature gradient

 

(°C per hour max)

20°C (operating)

 

30°C (nonoperating)

Relative humidity

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max

Wet bulb temperature

 

(°C max)

30 (operating)

 

40 (nonoperating)

Altitude, operating

–304.8 m to 3,048 m

 

(–1000 ft to 10,000

+ 

ft)

Altitude, nonoperating 

 

(meters below mean sea level, max)

–304.8 m to 12,192 m

 

(–1000 ft to 40,000

+ 

ft)

Shock, operating (Gs max at 2 msec)

250

Shock, nonoperating (Gs max at 2 msec)

800

Shock, nonoperating (Gs max at 1 msec)

900

Shock, nonoperating (Gs max at 0.5 msec)

400

Vibration, operating

1.0 G (0 to peak, 5–500 Hz)

Vibration, nonoperating

5 Gs (0 to peak, 5–500 Hz)

Drive acoustics, sound power (bels)

Idle***

2.4 (typical)

 

2.6 (max)

Performance seek

2.9 (typical)

 

3.1 (max)

Nonrecoverable read errors

1 per 10

14 

bits read

Annualized Failure Rate (AFR)

1.74% at maximum case temperature of 40°C and 8,760 power on hours (POH).

Service life

5 Years

Warranty

5 years on distribution units.
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 pro-
vide the drive serial number, model number (or part number) and country of pur-
chase. The system will display the warranty information for your drive.

Load/Unload (U/UL) cycles

 

 

25°C, 50% relative humidity

 

 

32°C, 80% relative humidity 

 

5°C, 80% relative humidity 

 

5°C, 10% relative humidity 

 

55°C, 16% relative humidity 

 

 

600,000 software-controlled power on/off cycles

 

20,000 hard power on/off cycles

 

 

600,000 software-controlled power on/off cycles

 

20,000 hard power on/off cycles

 

Supports Hotplug operation per SATA II specification

Yes (requires COMPRESET from host after a hotplug event)