Seagate ST31000520AS ユーザーズマニュアル

4

Barracuda LP Series SATA Product Manual, Rev. A

Formatted capacity

 

 (512 bytes/sector)*

2000 Gbytes

1500 Gbytes

1000 Gbytes

Guaranteed sectors

3,907,029,168

2,930,277,168

1,953,525,168

Heads

8

4

Discs

4

2

Bytes per sector

512

Default sectors per track

63

Default read/write heads

16

Default cylinders

16,383

Recording density

1417 kbits/in max

Track density

236 ktracks/in avg

Areal density

341.5 Gbits/in

2 

avg

Spindle speed

5,900 RPM

Internal data transfer rate

1285 Mbits/sec max

Sustained data transfer rate OD

95 Mbytes/sec max

I/O data-transfer rate

300 Mbytes/sec max

ATA data-transfer modes supported

PIO modes 0–4

 

Multiword DMA modes 0–2

 

Ultra DMA modes 0–6

Cache buffer

32 Mbytes

Height (max)

26.1 mm (1.028 inches)

Width (max)

101.85 mm (4.010 inches)

Length (max)

146.99 mm (5.787 inches)

Weight (typical)

655 grams (1.444 lb.)

622 grams (1.371 lb.)

Average latency

5.1 msec

Power-on to ready

<13 sec typical

<8 sec typical

Standby to ready

<8 sec typical

<6 sec typical

Track-to-track seek time

<1.0 msec typical read;

 

<1.2 msec typical write

Average read

<16.0 msec typical

Average write

<16.0 msec typical

Startup current 12V (peak)

2.8 amps

2.0 amps

Voltage tolerance (including noise)

5V ± 5%

 

12V ± 10%

Operating temperature

 

(Drive Case temperature)

0° to 60°C

Nonoperating temperature (Ambient)

–40° to 70°C

Temperature gradient (max)

20°C per hour max (operating)

 

30°C per hour max (nonoperating)

Relative humidity

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max

Wet bulb temperature (max)

37.7°C max (operating)

 

40.0°C max (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.)