Seagate ST3320613AS ユーザーズマニュアル
4
Barracuda 7200.11 Serial ATA Product Manual, Rev. C
Table 1:
Drive specifications summary
for 1500 and 1000 Gbyte models
Drive specification
ST31500341AS
ST31000333AS
Formatted capacity (512 bytes/sector)*
1500 Gbytes
1000 Gbytes
Guaranteed sectors
2,930,277,168
1,953,525,168
Heads
8
6
Discs
4
3
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density
1462 kbits/in max
1300 kbits/in max
Track density
190 ktracks/in avg
182 ktracks/in avg
Areal density
277 Gbits/in
2
avg
228 Gbits/in
2
avg
Spindle speed
7,200 RPM
Internal data transfer rate
1709 Mbits/sec max
1520 Mbits/sec max
Sustained data transfer rate OD
135 Mbytes/sec max
120 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)
101.6 mm (4.000 inches) +/- 0.010 inches
Length (max)
146.99 mm (5.787 inches)
Weight (typical)
720 grams (1.587 lb.)
630 grams ( 1.389 lb.)
Average latency
4.16 msec
Power-on to ready
20 sec max
Standby to ready
15 sec max
Track-to-track seek time
<0.8 msec typical read;
<1.0 msec typical write
Average seek, read
<8.5 msec typical
Average seek, write
<10.0 msec typical
Startup current (typical) 12V (peak)
2.8 amps
Voltage tolerance (including noise)
5V +10% / -7.5%
12V +10% / -7.5%
Ambient temperature
0° to 60°C (operating)
–40° to 70°C (nonoperating)
Temperature gradient
20°C per hour max (operating)
30°C per hour max (nonoperating)
Relative humidity
5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient
30% per hour max
Wet bulb temperature
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.)
Operational Shock
70 Gs max at 2 msec
Non-Operational Shock
300 Gs max at 2 msec