Seagate 7200.7 Plus Manuale Utente

4

Barracuda 7200.7 Product Manual, Rev. E

*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.

Average latency (msec)

4.16

Power-on to ready (sec typical)

10 sec

Standby to ready (sec typical)

10 sec

Startup current (typical) 12V (peak)

2.8 amps

Track-to-track seek time (msec typical)

<1.0 (read), <1.2 (write)

Average seek time (msec typical)

8.5

Average seek, read (msec typical)

8.5

Average seek, write (msec typical)

9.5

Seek power (typical)

12.5 watts

Read/write power (typical)

12.0 watts

Idle mode (typical)

7.5 watts

Standby mode (typical)

0.9 watts

Sleep mode (typical)

0.9 watts

Voltage tolerance (including noise)

5V ± 5% 

 

12V ± 10%

Ambient temperature

0° to 60°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)

33 (operating)

 

40 (nonoperating)

Altitude, operating

–60.96 m to 3,048 m

 

(–200 ft to 10,000+ ft)

Altitude, nonoperating (below mean sea 
level, max)

–60.96 m to 12,192 m

 

(–200 ft to 40,000+ ft)

Shock, operating (Gs max at 2 msec)

63 

Shock, nonoperating (Gs max at 2 msec)

350 Gs

Vibration, operating

1.0 G (0 to peak, 5–350 Hz)

Vibration, nonoperating

5.0 Gs (0 to peak, 22–350 Hz)

Drive acoustics Sound power (bels)

Idle*

<2.5 (typical)

 

  2.7 (max)

<2.2 (typ)

 

  2.4 (max)

Quiet seek

2.8 (typical)

 

3.0 (max)

2.5 (typ)

 

2.7 (max)

Performance seek

3.4 (typical)

 

3.7 (max)

3.1 (typ)

 

3.5 (max)

Nonrecoverable read errors

1 per 10

14 

bits read

Mean time between failures

 

(power-on hours)

600,000

Service life

5 Years

Contact start-stop cycles

 

(25°C, 40% rel. humidity)

50,000