Seagate ST31500541AS Barracuda LP Series SATA Product Manual - Page 12

Drive specifications summary

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Table 1: Drive specifications summary for 2000 and 1500GB models Drive specification Formatted capacity (512 bytes/sector)* Guaranteed sectors Heads Disk Bytes per sector Default sectors per track Default read/write heads Default cylinders Recording density (max.) Track density (avg.) Areal density (avg.) Spindle speed Internal data transfer rate (max.) Sustained data transfer rate OD (max.) I/O data-transfer rate (max.) ATA data-transfer modes supported Cache buffer Height (max) Width (max) Length (max) Weight (typical) Average latency Power-on to ready (typical) Standby to ready (typical) Track-to-track seek time (typical) Average read (typical) Average write (typical) Startup current (typical) 12V (peak) Voltage tolerance (including noise) Operating temperature (Drive Case temperature) Nonoperating temperature (Ambient) Temperature gradient (max) Relative humidity Relative humidity gradient (max.) Wet bulb temperature (max.) Altitude, operating Altitude, nonoperating (below mean sea level, max) ST32000542AS 2000GB 3,907,029,168 8 4 512 63 16 16,383 1417kb/in 236 ktracks/in 341.5 Gbits/in2 5900 RPM 1285Mb/s 95MB/s 300MB/s PIO modes: 0 to 4 Multiword DMA modes: 0 to 2 Ultra DMA modes: 0 to 6 32MB 26.1mm / 1.028 in 101.85mm / 4.010 in 146.99mm / 5.787 in 655g / 1.444 lb 5.1ms

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4
Barracuda LP Series SATA Product Manual, Rev. D
Table 1:
Drive specifications summary
for 2000 and 1500GB models
Drive specification
ST32000542AS
ST31500541AS
Formatted capacity
(512 bytes/sector)*
2000GB
1500GB
Guaranteed sectors
3,907,029,168
2,930,277,168
Heads
8
Disk
4
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.)
341.5 Gbits/in
2
Spindle speed
5900 RPM
Internal data transfer rate (max.)
1285Mb/s
Sustained data transfer rate OD (max.)
95MB/s
I/O data-transfer rate (max.)
300MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes: 0 to 6
Cache buffer
32MB
Height (max)
26.1mm / 1.028 in
Width (max)
101.85mm /
4.010 in
Length (max)
146.99mm / 5.787 in
Weight (typical)
655g /
1.444 lb
Average latency
5.1ms
Power-on to ready (typical)
<13s
Standby to ready (typical)
<12s
Track-to-track seek time (typical)
<1.0ms (read)
<1.2ms
(write)
Average read (typical)
Average write (typical)
<16.0ms
<16.0ms
Startup current (typical) 12V (peak)
2.0A
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 (max.)
30% per hour
Wet bulb temperature (max.)
37.7°C
(operating)
40.0°C (nonoperating)
Altitude, operating
–60.96m to 3,048m
(–200 ft to 10,000+ ft)
Altitude, nonoperating
(below mean sea level, max)
–60.96m to 12,192m
(–200 ft to 40,000+ ft)