Seagate BARRACUDA ST31000524AS User Manual
Page 12
12
Barracuda SATA Product Manual, Rev. A
Drive Specifications
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and
formatting.
**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.
Voltage tolerance (including noise)
5V +10% / -7.5%
12V +10% / -7.5%
5V +10% / -7.5%
12V +10% / -7.5%
Ambient temperature
0° to 60°C (operating)
–40° to 70°C (non-operating)
0° to 60°C (operating)
–40° to 70°C (non-operating)
Temperature gradient
20°C per hour max (operating)
30°C per hour max (non-operating)
20°C per hour max (operating)
30°C per hour max (non-operating)
Relative humidity
5% to 95% (operating)
5% to 95% (non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max.)
30% per hour
30% per hour
Wet bulb temperature (max.)
37.7°C max (operating)
40.0°C max (non-operating)
37.7°C max (operating)
40.0°C max (non-operating)
Altitude, operating
–304.8m to 3,048m
(–1000 ft to 10,000+ ft)
–304.8m to 3,048m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
Operational Shock (max)
70 Gs at 2ms
70 Gs at 2ms
Non-Operational Shock (max)
300 Gs at 2ms
300 Gs at 2ms
Vibration, operating
2Hz to 22Hz: 0.25 Gs, Limited displace-
ment
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
2Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
Vibration, non-operating
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle**
2.6 bels (typical)
2.7 bels (max)
2.6 bels (typical)
2.7 bels (max)
Seek
2.8 bels (typical)
3.0 bels (max)
2.8 bels (typical)
3.0 bels (max)
Non-recoverable read errors
1 per 10
14
bits read
1 per 10
14
bits read
Warranty
To determine the warranty for a specific drive, use a web browser to access the following web
From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive
serial number, model number (or part number) and country of purchase. The system will display
the warranty information for your drive.
Contact start-stop cycles
50,000 at 25°C, 50% rel. humidity
50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
Serial ATA Revision 2.5 specification
Yes
Yes
Table 2 Drive specifications summary for 500GB and 320 models
Drive specification
ST3500413AS ST3320413AS
Formatted capacity (512 bytes/sector)*
500GB
320GB
Guaranteed sectors
976,773,168
625,142,448
Heads
2
2
Disks
1
1
Bytes per sector
512
512
Default sectors per track
63
63
Default read/write heads
16
16
Default cylinders
16,383
16,383
Recording density (max.)
1413kb/in
1413kb/in
Track density (avg.)
236 ktracks/in
236 ktracks/in
Table 1 Drive specifications summary for 1000 and 750 models (continued)
Drive specification
ST31000524AS
ST3750525AS