Seagate ST31000322CS ユーザーズマニュアル

8

Pipeline HD.2 Series SATA Product Manual, Rev. G 

Formatted capacity

 

(512 bytes/sector)*

250GB

160GB

Guaranteed sectors

488,397,168

312,581,808

Heads

1

Disks

1

Bytes per sector

512

Default sectors per track

63

Default read/write heads

16

Default cylinders

16,383

Recording density (max.)

1417kb/in 

Track density (avg.)

236  ktracks/in 

Areal density (avg.)

341.5Gb/in

2 

Spindle speed

5900 RPM

Internal data transfer rate (max.)

1285Mb/s 

Sustained data transfer rate (max.)

120MB/s 

I/O data-transfer rate (max.)

300MB/s

ATA data-transfer modes supported

PIO modes 0–4

 

Multiword DMA modes 0–2

 

Ultra DMA modes 0–6

Cache buffer

16MB

8MB

Height (max.)

20.20mm / 0.795 in

Width (max.)

101.85mm / 4.010 in

Length (max.)

146.99mm / 5.787 in

Weight (typical)

395g / 0.871 lb

Average latency

5.1ms

Power-on to ready (typical)

<6s

Standby to ready (typical)

<6s

Track-to-track seek time (typical)

<1.0ms (read)

 

<1.2ms (write)

Average seek (typical)

<14.0ms (read)
<15.0ms (write)

Startup current (typical) 12V (peak)

2.0A

Voltage tolerance (including noise)

5V ± 5%

 

12V ± 10%

Operating temperature

 

(drive case temperature)

0° to 75°C

Non-operating temperature (ambient)

–40° to 70°C

Temperature gradient (max.)

20°C per hour (operating)

 

30°C per hour (non-operating)

Relative humidity

5% to 90% (operating)

 

5% to 95% (non-operating)

Relative humidity gradient (max.)

30% per hour 

Wet bulb temperature (max.)

37.7°C (operating)

 

40.0°C (non-operating)

Altitude, operating

–60.96m to 3,048m

 

(–200 ft  to 10,000+ ft)

Altitude, non-operating 

 

(below mean sea level, max.)

–60.96m to 12,192m

 

(–200 ft  to 40,000+ ft)