Seagate BARRACUDA ST3750525AS User Manual

Product Manual  
Barracuda  
ST31000524AS  
ST3750525AS  
ST3500413AS  
ST3320413AS  
ST3250312AS  
ST3160316AS  
100636864  
Rev. B  
March 2011  
Contents  
4.3.3  
Barracuda SATA Product Manual, Rev. B  
Barracuda SATA Product Manual, Rev. B  
Barracuda SATA Product Manual, Rev. B  
Seagate Technology Support Services  
contact_us/  
Available services include:  
Presales & Technical support  
Global Support Services telephone numbers & business hours  
Authorized Service Centers  
For information regarding Warranty Support, visit  
http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance  
Barracuda SATA Product Manual, Rev. B  
7
 
8
Barracuda SATA Product Manual, Rev. B  
1.0 Introduction  
This manual describes the functional, mechanical and interface specifications for the following Seagate  
Barracuda® model drives:  
ST31000524AS  
ST3750525AS  
ST3500413AS  
ST3320413AS  
ST3250312AS  
ST3160316AS  
These drives provide the following key features:  
• 7200 RPM spindle speed.  
• High instantaneous (burst) data-transfer rates (up to 600MB per second).  
• Perpendicular recording technology provides the drives with increased areal density.  
• State-of-the-art cache and on-the-fly error-correction algorithms.  
• Native Command Queueing with command ordering to increase performance in demanding applications.  
• Full-track multiple-sector transfer capability without local processor intervention.  
• Quiet operation.  
• Compliant with RoHS requirements in China and Europe.  
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.  
• Support for S.M.A.R.T. drive monitoring and reporting.  
• Supports latching SATA cables and connectors.  
• Worldwide Name (WWN) capability uniquely identifies the drive.  
1.1 About the Serial ATA interface  
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary  
advantages include:  
• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jumpers  
or other configuration options.  
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.  
• Scalability to higher performance levels.  
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial  
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disk drive in your current system  
and expect all of your existing applications to work as normal.  
The Serial ATA interface connects each disk drive in a point-to-point configuration with the Serial ATA host  
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives  
are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both  
“masters” on two separate ports. This essentially means both drives behave as if they are Device 0 (master)  
devices.  
The host adapter may, optionally, emulate a master/slave environment to host software where two  
devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and  
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a  
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA  
environment.  
Note  
Barracuda SATA Product Manual, Rev. B  
9
               
Introduction  
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide  
backward compatibility with existing host systems and software. The Command and Control Block registers, PIO  
and DMA data transfers, resets, and interrupts are all emulated.  
The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device registers,  
referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional  
information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial  
10  
Barracuda SATA Product Manual, Rev. B  
2.0 Drive Specifications  
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power.  
For convenience, the phrases the drive and this drive are used throughout this manual to indicate the following  
drive models:  
ST31000524AS  
ST3750525AS  
ST3500413AS  
ST3320413AS  
ST3250312AS  
ST3160316AS  
2.1 Specification summary tables  
The specifications listed in the following tables are for quick reference. For details on specification measurement  
or definition, see the appropriate section of this manual.  
Table 1 Drive specifications summary for 1000 and 750 models  
Drive Specification  
ST31000524AS  
ST3750525AS  
Formatted capacity (512 bytes/sector)*  
Guaranteed sectors  
1000GB  
1,953,525,168  
4
750GB  
1,465,149,168  
3
Heads  
Disks  
2
2
Bytes per sector  
512  
512  
Default sectors per track  
Default read/write heads  
Default cylinders  
63  
63  
16  
16  
16,383  
16,383  
1413kb/in  
236 ktracks/in  
329Gb/in2  
7200 RPM  
1695Mb/s  
125MB/s  
600MB/s  
Recording density (max)  
Track density (avg)  
1413kb/in  
236 ktracks/in  
329Gb/in2  
7200 RPM  
1695Mb/s  
125MB/s  
600MB/s  
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  
PIO modes: 0 to 4  
Multiword DMA modes: 0 to 2  
Ultra DMA modes: 0 to 6  
Cache buffer  
32MB  
32MB  
Height (max.)  
26.1mm / 1.028 in  
101.6mm /4.0 in (+ 0.010 in)  
146.99mm / 5.787 in  
622g /1.371 lb  
4.16ms  
26.1mm / 1.028 in  
Width (max.)  
101.6mm /4.0 in (+ 0.010 in)  
Length (max.)  
146.99mm / 5.787 in  
622g /1.371 lb  
4.16ms  
Weight (typical)  
Average latency  
Power-on to ready (max.)  
Standby to ready (max.)  
Track-to-track seek time (typical)  
<10.0s  
<10.0s  
<10.0s  
<10.0s  
<1.0ms read  
<1.2ms write  
<1.0ms read  
<1.2ms write  
Average seek, read (typical)  
Average seek, write (typical)  
<8.5ms typical  
<9.5ms typical  
<8.5ms typical  
<9.5ms typical  
Barracuda SATA Product Manual, Rev. B  
11  
       
Drive Specifications  
Table 1 Drive specifications summary for 1000 and 750 models (continued)  
Drive Specification  
ST31000524AS  
ST3750525AS  
Startup current (typical) 12V (peak)  
Voltage tolerance (including noise)  
2.0A  
2.0A  
5V +10% / -7.5%  
12V +10% / -7.5%  
5V +10% / -7.5%  
12V +10% / -7.5%  
Ambient temperature  
Temperature gradient  
Relative humidity  
0° to 60°C (operating)  
–40° to 70°C (non-operating)  
0° to 60°C (operating)  
–40° to 70°C (non-operating)  
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)  
5% to 95% (operating)  
5% to 95% (non-operating)  
5% to 95% (operating)  
5% to 95% (non-operating)  
Relative humidity gradient (max.)  
Wet bulb temperature (max.)  
30% per hour  
30% per hour  
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)  
Non-Operational Shock (max)  
Vibration, operating  
70 Gs at 2ms  
300 Gs at 2ms  
70 Gs at 2ms  
300 Gs at 2ms  
2Hz to 22Hz: 0.25 Gs, Limited displace-  
ment  
2Hz to 22Hz: 0.25 Gs, Limited displacement  
22Hz to 350Hz: 0.50 Gs  
22Hz to 350Hz: 0.50 Gs  
350Hz to 500Hz: 0.25 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  
Annulized Failure Rate (AFR)  
Warranty  
1 per 1014 bits read  
1 per 1014 bits read  
0.34%  
0.34%  
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 dis-  
play the warranty information for your drive.  
Contact start-stop cycles  
50,000 at 25°C, 50% rel. humidity  
Yes  
50,000 at 25°C, 50% rel. humidity  
Yes  
Supports Hotplug operation per the  
Serial ATA Revision 2.5 specification  
*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.  
Table 2 Drive specifications summary for 500GB and 320 models  
Drive Specification  
Formatted capacity (512 bytes/sector)*  
Guaranteed sectors  
Heads  
ST3500413AS  
ST3320413AS  
500GB  
320GB  
976,773,168  
625,142,448  
2
2
Disks  
1
1
Bytes per sector  
512  
63  
512  
63  
Default sectors per track  
Default read/write heads  
Default cylinders  
16  
16  
16,383  
16,383  
12  
Barracuda SATA Product Manual, Rev. B  
Table 2 Drive specifications summary for 500GB and 320 models (continued)  
Drive Specification  
ST3500413AS  
1413kb/in  
ST3320413AS  
1413kb/in  
Recording density (max.)  
Track density (avg.)  
236 ktracks/in  
329Gb/in2  
7200 RPM  
1695Mb/s  
236 ktracks/in  
329Gb/in2  
Areal density (avg.)  
Spindle speed  
7200 RPM  
Internal data transfer rate (max)  
Sustained data transfer rate OD (max)  
I/O data-transfer rate (max.)  
ATA data-transfer modes supported  
1695Mb/s  
125MB/s  
125MB/s  
600MB/s  
600MB/s  
PIO modes: 0 to 4  
PIO modes: 0 to 4  
Multiword DMA modes: 0 to 2  
Ultra DMA modes: 0 to 6  
Multiword DMA modes: 0 to 2  
Ultra DMA modes: 0 to 6  
Cache buffer  
16MB  
16MB  
Height (max)  
19.98mm / 0.787 in  
101.6mm / 4.0 in (+ 0.010 in)  
146.99mm / 5.787 in  
415g / 0.915 lb  
4.16ms  
19.98mm / 0.787 in  
101.6mm / 4.0 in (+ 0.010 in)  
146.99mm / 5.787 in  
415g / 0.915 lb  
4.16ms  
Width (max)  
Length (max)  
Weight (typical)  
Average latency  
Power-on to ready (max)  
Standby to ready (max)  
Track-to-track seek time (typical)  
<8.5s  
<8.5s  
<8.5s  
<8.5s  
<1.0ms read;  
<1.2ms write  
<1.0ms read;  
<1.2ms write  
Average seek, read (typical)  
<8.5ms  
<9.5ms  
2.0A  
<8.5ms  
<9.5ms  
2.0A  
Average seek, write (typical)  
Startup current (typical) 12V (peak)  
Voltage tolerance (including noise)  
5V +10% / -7.5%  
12V +10% / -7.5%  
5V +10% / -7.5%  
12V +10% / -7.5%  
Ambient temperature  
Temperature gradient  
Relative humidity  
0° to 60°C (operating)  
–40° to 70°C (non-operating)  
0° to 60°C (operating)  
–40° to 70°C (non-operating)  
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)  
5% to 95% (operating)  
5% to 95% (non-operating)  
5% to 95% (operating)  
5% to 95% (non-operating)  
Relative humidity gradient (max)  
Wet bulb temperature (max)  
30% per hour  
30% per hour  
37.7°C (operating)  
40.0°C (non-operating)  
37.7°C (operating)  
40.0°C (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)  
Non-Operational Shock (max)  
Vibration, operating  
70 Gs at 2ms  
350 Gs at 2ms  
70 Gs at 2ms  
350 Gs at 2ms  
2Hz to 22Hz: 0.25 Gs, Limited displacement  
22Hz to 350Hz: 0.50 Gs  
2Hz to 22Hz: 0.25 Gs, Limited displacement  
22Hz to 350Hz: 0.50 Gs  
350Hz to 500Hz: 0.25 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  
Annulized Failure Rate (AFR)  
1 per 1014 bits read  
1 per 1014 bits read  
0.34%  
0.34%  
Barracuda SATA Product Manual, Rev. B  
13  
Drive Specifications  
Table 2 Drive specifications summary for 500GB and 320 models (continued)  
Drive Specification  
ST3500413AS  
ST3320413AS  
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 dis-  
play the warranty information for your drive.  
Contact start-stop cycles  
50,000 at 25°C, 50% rel. humidity  
Yes  
50,000 at 25°C, 50% rel. humidity  
Yes  
Supports Hotplug operation per the  
Serial ATA Revision 2.5 specification  
*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.  
Table 3 Drive specifications summary for 250GB and 160GB models  
Drive Specification  
Formatted capacity (512 bytes/sector)*  
Guaranteed sectors  
ST3250312AS  
250GB  
ST3160316AS  
160GB  
488,397,168  
1
312,581,808  
1
Heads  
Disks  
1
1
Bytes per sector  
512  
512  
Default sectors per track  
Default read/write heads  
Default cylinders  
63  
63  
16  
16  
16,383  
16,383  
Recording density (max.)  
Track density (avg.)  
1413kb/in  
236 ktracks/in  
329Gb/in2  
7200 RPM  
1695Mb/s  
125MB/s  
600MB/s  
1413kb/in  
236 ktracks/in  
329Gb/in2  
7200 RPM  
1695Mb/s  
125MB/s  
600MB/s  
Areal density (avg.)  
Spindle speed  
Internal data transfer rate (max.)  
Sustained data transfer rate OD (max.)  
I/O data-transfer rate  
ATA data-transfer modes supported  
PIO modes: 0 to 4  
PIO modes: 0 to 4  
Multiword DMA modes: 0 to 2  
Ultra DMA modes: 0 to 6  
Multiword DMA modes: 0 to 2  
Ultra DMA modes: 0 to 6  
Cache buffer  
8MB  
8MB  
Height (max.)  
19.98mm / 0.787 in  
101.6mm / 4.0 in ( + 0.010 in)  
146.99mm / 5.787 in  
415g / 0.915 lb  
4.16ms  
19.98mm / 0.787 in  
101.6mm / 4.0 in ( + 0.010 in)  
146.99mm / 5.787 in  
415g / 0.915 lb  
4.16ms  
Width (max.)  
Length (max.)  
Weight (typical)  
Average latency  
Power-on to ready (max.)  
Standby to ready (max.)  
Track-to-track seek time (typical)  
<8.5s  
<8.5s  
<8.5s  
<8.5s  
<1.0ms (read)  
<1.2ms (write)  
<1.0ms (read)  
<1.2ms (write)  
Average seek, read (typical)  
Average seek, write (typical)  
<8.5ms (read)  
<9.5ms (write)  
<8.5ms (read)  
<9.5ms (write)  
Startup current (typical) 12V (peak)  
Voltage tolerance (including noise)  
2.0A  
2.0A  
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 (max.)  
20°C per hour (operating)  
30°C per hour (non-operating)  
20°C per hour (operating)  
30°C per hour (non-operating)  
14  
Barracuda SATA Product Manual, Rev. B  
Drive Specifications  
Table 3 Drive specifications summary for 250GB and 160GB models (continued)  
Drive Specification  
ST3250312AS  
ST3160316AS  
Relative humidity  
5% to 95% (operating)  
5% to 95% (non-operating)  
5% to 95% (operating)  
5% to 95% (non-operating)  
Relative humidity gradient (max.)  
Wet bulb temperature  
30% per hour  
30% per hour  
37.7°C max (operating)  
40.0°C max (non-operating)  
37.7°C max (operating)  
40.0°C max (non-operating)  
Altitude, operating  
–60.96m to 3,048m  
(–1000 ft to 10,000+ ft)  
–60.96m to 3,048m  
(–1000 ft to 10,000+ ft)  
Altitude, non-operating  
(below mean sea level, max.)  
–60.96m to 12,192m  
(–1000 ft to 40,000+ ft)  
–60.96m to 12,192m  
(–1000 ft to 40,000+ ft)  
Operational Shock (max.)  
Non-Operational Shock (max.)  
Vibration, operating  
70 Gs at 2ms  
350 Gs at 2ms  
70 Gs at 2ms  
350 Gs at 2ms  
2Hz to 22Hz: 0.25 Gs, Limited displacement  
22Hz to 350Hz: 0.50 Gs  
2Hz to 22Hz: 0.25 Gs, Limited displacement  
22Hz to 350Hz: 0.50 Gs  
350Hz to 500Hz: 0.25 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  
Annulized Failure Rate (AFR)  
Warranty  
1 per 1014 bits read  
1 per 1014 bits read  
0.34%  
0.34%  
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 dis-  
play the warranty information for your drive.  
Contact start-stop cycles  
50,000 at 25°C, 50% rel. humidity  
Yes  
50,000 at 25°C, 50% rel. humidity  
Yes  
Supports Hotplug operation per the  
Serial ATA Revision 2.5 specification  
*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.  
2.2 Formatted capacity  
Formatted  
capacity*  
Guaranteed  
sectors  
Model  
Bytes per sector  
ST31000524AS  
ST3750525AS  
ST3500413AS  
ST3320413AS  
ST3250312AS  
ST3160316AS  
1000GB  
750GB  
500GB  
320GB  
250GB  
160GB  
1,953,525,168  
1,465,149,168  
976,773,168  
625,142,448  
488,397,168  
312,581,808  
512  
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and  
formatting.  
Barracuda SATA Product Manual, Rev. B  
15  
     
Drive Specifications  
2.2.1 LBA mode  
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where  
n is the number of guaranteed sectors as defined above.  
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit  
addressing support of drives with capacities over 137GB.  
2.3 Default logical geometry  
Cylinders  
Read/write heads  
Sectors per track  
16,383  
16  
63  
LBA mode  
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where  
n is the number of guaranteed sectors as defined above.  
16  
Barracuda SATA Product Manual, Rev. B  
                       
Drive Specifications  
2.4 Recording and interface technology  
Interface  
Serial ATA (SATA)  
Recording method  
Perpendicular  
1413  
Recording density (kbits/inch max)  
Track density (ktracks/inch avg)  
236  
2
Areal density (Gbits/inch avg)  
329  
Spindle speed (RPM)  
7,200 0.2%  
1695  
Internal data transfer rate (Mb/s max)  
Sustained data transfer rate (MB/s max) 125  
I/O data-transfer rate (MB/s max)  
600  
2.5 Physical characteristics  
Maximum height  
1000 and 750GB models  
500, 320, 250 and 160GB models  
Maximum width  
26.1mm / 1.028 in  
19.98mm / 0.787 in  
101.6mm / 4.000 (+ 0.010 in)  
146.99mm / 5.787 in  
Maximum length  
Typical weight  
1000 and 750GB models  
500, 320, 250 and 160GB models  
Cache buffer  
622g / 1.371 lb  
415g / 0.915 lb  
1000 and 750GB models  
500 and 320GB models  
250 and 160GB models  
32MB (32,768kb)  
16MB (16,384kb)  
8MB (8192kb)  
2.6 Seek time  
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using  
drive diagnostics. The specifications in the table below are defined as follows:  
Track-to-track seek time is an average of all possible single-track seeks in both directions.  
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between  
random tracks, less overhead.  
Typical seek times (ms)  
Track-to-track  
Read  
1.0  
Write  
1.2  
Average  
8.5  
9.5  
Average latency  
4.16  
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17  
                                                             
Drive Specifications  
These drives are designed to consistently meet the seek times represented in this manual.  
Physical seeks, regardless of mode (such as track-to-track and average), are expected to meet  
the noted values. However, due to the manner in which these drives are formatted, benchmark  
tests that include command overhead or measure logical seeks may produce results that vary  
from these specifications.  
Note  
2.7 Start/stop times  
1000 and 750GB models  
500, 320, 250 and 160GB models  
Power-on to Ready (typ / max sec)  
Standby to Ready (typ / max sec)  
Ready to spindle stop (typ / max sec)  
<10.0  
<10.0  
10  
<8.5  
<8.5  
10  
2.8 Power specifications  
The drive receives DC power (+5V or +12V) through a native SATA power connector. Refer to Figure 1 on page 28  
on page 28.  
2.8.1 Power consumption  
Power requirements for the drives are listed in Table 4 on page 19 and Table 5 on page 19. Typical power  
measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input  
voltage at 25°C ambient temperature.  
• Spinup power  
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating  
speed.  
• Read/write power and current  
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay,  
then a 16-sector read followed by a 32-ms delay.  
• Operating power and current  
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10  
reads) and 20 percent drive idle mode.  
• Idle mode power  
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a  
random track location.  
• Standby mode  
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/write  
electronics are in power-down mode.  
18  
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Drive Specifications  
Table 4 DC power requirements (2-disk)  
Power dissipation (2-disk values shown)  
Avg (watts 25° C)  
Avg 5V typ amps  
Avg 12V typ amps  
2.0 (peak)  
0.337  
Spinup  
Idle* †  
5.0  
0.168  
0.153  
0.496  
0.35  
0.35  
Idle* † (with offline activity)  
Operating  
5.40  
6.57  
0.79  
0.79  
0.387  
0.341  
Standby  
0.01  
Sleep  
0.01  
Table 5 DC power requirements (1-disk)  
Power dissipation (1-disk values shown)  
Avg (watts 25° C)  
Avg 5V typ amps  
Avg 12V typ amps  
2.0 (peak)  
0.224  
Spinup  
Idle* †  
4.60  
4.50  
6.19  
0.79  
0.79  
0.378  
0.250  
0.656  
0.35  
0.35  
Idle* † (with offline activity)  
Operating  
0.240  
0.243  
Standby  
0.01  
Sleep  
0.01  
*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.  
†5W IDLE with DIPLM Enabled  
2.8.2 Conducted noise  
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the  
+12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.  
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave  
injected noise at up to 10MHz.  
• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave  
injected noise at up to 10MHz.  
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write  
current.  
Note  
2.8.3 Voltage tolerance  
Voltage tolerance (including noise):  
5V +10% / -7.5%  
• 12V +10% / -7.5%  
Barracuda SATA Product Manual, Rev. B  
19  
                             
Drive Specifications  
2.8.4 Power-management modes  
The drive provides programmable power management to provide greater energy efficiency. In most systems, you  
can control power management through the system setup program. The drive features the following power-  
management modes:  
Power modes  
Active  
Heads  
Spindle  
Rotating  
Rotating  
Stopped  
Stopped  
Buffer  
Tracking  
Tracking  
Parked  
Parked  
Enabled  
Enabled  
Enabled  
Disabled  
Idle  
Standby  
Sleep  
• Active mode  
The drive is in Active mode during the read/write and seek operations.  
• Idle mode  
The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disk  
access is necessary.  
• Standby mode  
The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the  
standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a spec-  
ifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby  
mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all com-  
mands and returns to Active mode any time disk access is necessary.  
• Sleep mode  
The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is  
disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard  
Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby mode  
with all current translation parameters intact.  
• Idle and Standby timers  
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and  
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive  
activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive  
accepts all commands and returns to Active mode when disk access is necessary.  
20  
Barracuda SATA Product Manual, Rev. B  
                             
Drive Specifications  
2.9 Environmental specifications  
2.9.1 Ambient temperature  
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual  
drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.  
Operating:  
0° to 60°C (32° to 140°F)  
Non-operating:  
–40° to 70°C (–40° to 158°F)  
2.9.2 Temperature gradient  
Operating:  
20°C per hour (68°F per hour max), without condensation  
30°C per hour (86°F per hour max)  
Non-operating:  
2.9.3 Humidity  
2.9.3.1 Relative humidity  
Operating:  
5% to 95% non-condensing (30% per hour max)  
5% to 95% non-condensing (30% per hour max)  
Nonoperating:  
2.9.3.2 Wet bulb temperature  
Operating:  
37.7°C (99.9°F max)  
Non-operating:  
40°C (104°F max)  
2.9.4 Altitude  
Operating:  
–304.8 m to 3,048 m (–1000 ft. to 10,000+ ft.)  
–304.8 m to 12,192 m (–1000 ft. to 40,000+ ft.)  
Non-operating:  
2.9.5 Shock  
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive  
mounting screws. Shock may be applied in the X, Y or Z axis.  
2.9.5.1 Operating shock  
These drives comply with the performance levels specified in this document when subjected to a maximum  
operating shock of 70 Gs based on half-sine shock pulses of 2 ms during read operations. Shocks should not be  
repeated more than two times per second.  
2.9.5.2 Non-operating shock  
1000 and 750GB models  
The non-operating shock level that the drive can experience without incurring physical damage or degradation in  
performance when subsequently put into operation is 300 Gs based on a non-repetitive half-sine shock pulse of 2  
ms duration.  
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21  
                                       
Drive Specifications  
500, 320, 250 and 160GB models  
The non-operating shock level that the drive can experience without incurring physical damage or degradation in  
performance when subsequently put into operation is 350 Gs based on a non-repetitive half-sine shock pulse of  
2-ms duration.  
2.9.6 Vibration  
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive  
mounting screws. Vibration may be applied in the X, Y or Z axis.  
2.9.6.1 Operating vibration  
The maximum vibration levels that the drive may experience while meeting the performance standards specified  
in this document are specified below.  
2Hz to 22Hz  
0.25 Gs (Limited displacement)  
22Hz to 350Hz  
350Hz to 500Hz  
0.50 Gs  
0.25 Gs  
2.9.6.2 Non-operating vibration  
The maximum non-operating vibration levels that the drive may experience without incurring physical damage or  
degradation in performance when subsequently put into operation are specified below.  
5Hz to 22Hz  
3.0 Gs (Limited displacement)  
3.0 Gs  
22Hz to 350Hz  
350Hz to 500Hz 3.0 Gs  
2.10 Acoustics  
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All  
measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially  
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.  
For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is  
defined by the following equation:  
Note  
(Number of seeks per second = 0.4 / (average latency + average access time  
Table 6 Fluid Dynamic Bearing (FDB) motor acoustics  
Idle*  
Seek  
All models  
2.6 bels (typ)  
2.7 bels (max)  
2.8 bels (typ)  
3.0 bels (max)  
*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.  
2.10.1 Test for Prominent Discrete Tones (PDTs)  
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this  
process is the use of the absolute threshold of hearing. Seagate uses this threshold curve (originated in ISO 389-  
7) to discern tone audibility and to compensate for the inaudible components of sound prior to computation of  
tone ratios according to Annex D of the ECMA-74 standards.  
22  
Barracuda SATA Product Manual, Rev. B  
                       
Drive Specifications  
2.11 Electromagnetic immunity  
When properly installed in a representative host system, the drive operates without errors or degradation in  
performance when subjected to the radio frequency (RF) environments defined in the following Table 7:  
Table 7 Radio frequency environments  
Performance  
level  
Reference  
standard  
Test  
Description  
Electrostatic discharge Contact, HCP, VCP: 4 kV; Air: 8 kV  
B
A
EN61000-4-2: 95  
Radiated RF immunity 80MHz to 1,000MHz, 3 V/m,  
80% AM with 1kHz sine  
EN61000-4-3: 96  
ENV50204: 95  
900MHz, 3 V/m, 50% pulse modulation @  
200Hz  
Electrical fast transient  
Surge immunity  
1 kV on AC mains, 0.5 kV on external I/O B  
EN61000-4-4: 95  
EN61000-4-5: 95  
1 kV differential, 2 kV common,  
AC mains  
B
Conducted RF  
immunity  
150kHz to 80MHz, 3 Vrms, 80% AM with  
1kHz sine  
A
EN61000-4-6: 97  
EN61000-4-11: 94  
Voltage dips, interrupts 0% open, 5 seconds  
0% short, 5 seconds  
C
C
C
B
40%, 0.10 seconds  
70%, 0.01 seconds  
2.12 Reliability  
The product shall achieve an Annualized Failure Rate (AFR) of 0.34% (MTBF of 0.75 million hours) when operated  
in an environment of ambient air temperatures of 25°C. Operation at temperatures outside the specifications in  
Section 2.9 may increase the product AFR (decrease MTBF). AFR and MTBF are population statistics that are not  
relevant to individual units.  
AFR and MTBF specifications are based on the following assumptions for desktop personal computer  
environments:  
• 2400 power-on-hours per year.  
• 10,000 average motor start/stop cycles per year.  
• Operations at nominal voltages.  
Temperatures outside the specifications in Section 2.9 may reduce the product reliability.  
• Normal I/O duty cycle for desktop personal computers. Operation at excessive I/O duty cycle may degrade  
product reliability.  
The desktop personal computer environment of power-on-hours, temperature, and I/O duty cycle affect the product  
AFR and MTBF. The AFR and MTBF will be degraded if used in an enterprise application  
14  
Nonrecoverable read errors  
Annualized Failure Rate (AFR)  
Contact start-stop cycles  
1 per 10 bits read, max  
0.34% (nominal power, 25°C ambient temperature)  
50,000 cycles  
(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)  
Preventive maintenance  
None required.  
Barracuda SATA Product Manual, Rev. B  
23  
                                             
Drive Specifications  
2.13 Warranty  
To determine the warranty for a specific drive, use a web browser to access the following web page:  
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.  
2.14 Agency certification  
2.14.1 Safety certification  
These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked  
as to the certify agency.  
2.14.2 Electromagnetic compatibility  
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the  
Electromagnetic Compatibility Directive (2004/108/EC) as put into place 20 July 2007. Testing is performed to the  
levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined  
by EN 55022, Class B and the immunity levels are defined by EN 55024.  
Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the  
directives when used in the test systems, we cannot guarantee that all systems will comply with the directives.  
The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if  
necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators should  
confirm EMC compliance and provide CE marking for their products.  
Korean RRL  
If these drives have the Korean Communications Commission (KCC) logo, they comply with paragraph 1 of Article  
11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC)  
Framework requirements of the Radio Research Laboratory (RRL) Communications Commission, Republic of  
Korea.  
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibility  
(EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recognized  
lab.  
• Family name: Barracuda 7200.12  
• Certificate number: STX - 720012 (B)  
Australian C-Tick (N176)  
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZ CISPR22  
and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication  
Authority (ACA).  
2.14.3 FCC verification  
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached as  
an external device). As such, each drive is considered to be a subassembly even when it is individually marketed  
to the customer. As a subassembly, no Federal Communications Commission verification or certification of the  
device is required.  
Seagate has tested this device in enclosures as described above to ensure that the total assembly (enclosure,  
disk drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant  
to Subpart J, Part 15 of the FCC rules. Operation with non-certified assemblies is likely to result in interference to  
radio and television reception.  
Radio and television interference. This equipment generates and uses radio frequency energy and if not  
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and  
television reception.  
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Barracuda SATA Product Manual, Rev. B  
                                                                       
Drive Specifications  
This equipment is designed to provide reasonable protection against such interference in a residential installation.  
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does  
cause interference to radio or television, which can be determined by turning the equipment on and off, you are  
encouraged to try one or more of the following corrective measures:  
• Reorient the receiving antenna.  
• Move the device to one side or the other of the radio or TV.  
• Move the device farther away from the radio or TV.  
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.  
If necessary, you should consult your dealer or an experienced radio/television technician for additional  
suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission:  
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the  
Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication  
number 004-000-00345-4.  
2.15 Environmental protection  
Seagate designs its products to meet environmental protection requirements worldwide, including regulations  
restricting certain chemical substances.  
2.15.1 European Union Restriction of Hazardous Substances (RoHS) Directive  
The European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical  
substances, including Lead, Cadmium, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products,  
effective July 2006. This drive is manufactured with components and materials that comply with the RoHS  
Directive.  
中国限制危险物品的指令  
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive  
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table  
contains information mandated by China's "Marking Requirements for Control of Pollution Caused  
by Electronic Information Products" Standard.  
"O" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is lower  
than the threshold defined by the China RoHS MCV Standard.  
O”  
RoHS MCV  
表示该部件(于同类物品程度上)所含的危险和有毒物质低于中国  
标准所定义的门槛值。  
"X" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is over the  
threshold defined by the China RoHS MCV Standard.  
X”  
RoHS MCV  
表示该部件(于同类物品程度上)所含的危险和有毒物质超出中国  
标准所定义的门槛值。  
Barracuda SATA Product Manual, Rev. B  
25  
           
Drive Specifications  
2.16 Corrosive environment  
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to light  
industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM B845.  
However, this accelerated testing cannot duplicate every potential application environment. Users should use  
caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as  
electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel  
and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate  
contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be  
exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an  
ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that  
can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment  
may be extended by replacing materials near circuitry with sulfide-free alternatives.  
26  
Barracuda SATA Product Manual, Rev. B  
   
3.0 Configuring and Mounting the Drive  
This section contains the specifications and instructions for configuring and mounting the drive.  
3.1 Handling and static-discharge precautions  
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic  
discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions:  
Caution  
• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal chassis  
of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the entire installation  
procedure.  
• Handle the drive by its edges or frame only.  
• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.  
• Always rest the drive on a padded, antistatic surface until you mount it in the computer.  
• Do not touch the connector pins or the printed circuit board.  
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids the  
warranty. Some factory-installed labels contain information needed to service the drive. Other labels are used to  
seal out dirt and contamination.  
3.2 Configuring the drive  
Each drive on the Serial ATA interface connects point-to-point with the Serial ATA host adapter. There is no  
master/slave relationship because each drive is considered a master in a point-to-point relationship. If two drives  
are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both  
“masters” on two separate ports. Both drives behave as if they are Device 0 (master) devices.  
Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive for  
proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA-equipped  
motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation.  
3.3 Serial ATA cables and connectors  
The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connections.  
The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 8 for  
connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.  
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive and  
the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind  
mateable.  
For installations which require cables, you can connect the drive as illustrated in Figure 1.  
Barracuda SATA Product Manual, Rev. B  
27  
                             
Configuring and Mounting the Drive  
Figure 1 Attaching SATA cabling  
Signal connector  
Power connector  
Signal cable  
Power cable  
Each cable is keyed to ensure correct orientation. Barracuda drives support latching SATA connectors.  
3.4 Drive mounting  
You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the  
bottom-mounting holes. See Figure 2 and Figure 3 for drive mounting dimensions. Follow these important  
mounting precautions when mounting the drive:  
• Allow a minimum clearance of 0.030 inches (0.76mm) around the entire perimeter of the drive for cooling.  
• Use only 6-32 UNC mounting screws.  
• The screws should be inserted no more than 0.150 inch (3.81mm) into the bottom or side mounting holes.  
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).  
28  
Barracuda SATA Product Manual, Rev. B  
     
Figure 2 Mounting dimensions (1000 and 750GB models)  
Recommended  
case temperature  
measurement location  
Barracuda SATA Product Manual, Rev. B  
29  
   
Configuring and Mounting the Drive  
Figure 3 Mounting dimensions (500, 320, 250 and 160GB models)  
Recommended  
case temperature  
measurement location  
30  
Barracuda SATA Product Manual, Rev. B  
   
4.0 Serial ATA (SATA) Interface  
These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA  
programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.  
For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT  
Attachment” specification.  
4.1 Hot-Plug compatibility  
Barracuda drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial  
4.2 Serial ATA device plug connector pin definitions  
Table 8 summarizes the signals on the Serial ATA interface and power connectors.  
Table 8 Serial ATA connector pin definitions  
Segment Pin  
Function  
Ground  
A+  
Definition  
S1  
S2  
S3  
S4  
S5  
S6  
2nd mate  
Differential signal pair A from Phy  
A-  
Ground  
B-  
2nd mate  
Differential signal pair B from Phy  
B+  
S7  
Ground  
2nd mate  
Signal  
Key and spacing separate signal and power segments  
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31  
             
Serial ATA (SATA) Interface  
Table 8 Serial ATA connector pin definitions  
Segment Pin  
Function  
V33  
Definition  
P1  
P2  
P3  
P4  
P5  
P6  
P7  
3.3V power  
V33  
3.3V power  
V33  
3.3V power, pre-charge, 2nd mate  
1st mate  
Ground  
Ground  
Ground  
V5  
2nd mate  
2nd mate  
5V power, pre-charge, 2nd mate  
5V power  
P8  
V5  
Power  
P9  
V5  
5V power  
P10  
P11  
P12  
P13  
P14  
P15  
Ground  
2nd mate  
Ground or LED signal If grounded, drive does not use deferred spin  
Ground  
V12  
1st mate.  
12V power, pre-charge, 2nd mate  
12V power  
V12  
V12  
12V power  
Notes  
1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.  
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this  
case, the mating sequences are:  
• the ground pins P4 and P12.  
• the pre-charge power pins and the other ground pins.  
• the signal pins and the rest of the power pins.  
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when installed  
in a blind-mate backplane configuration.  
• All used voltage pins (Vx) must be terminated.  
4.3 Supported ATA commands  
The following table lists Serial ATA standard commands that the drive supports.  
For a detailed description of the ATA commands, refer to the Serial ATA International Organization:  
Serial ATA Revision 2.6 (http://www.sata-io.org).  
See “S.M.A.R.T. commands” on page 40 for details and subcommands used in the S.M.A.R.T. implementation.  
Command name  
Command code (in hex)  
E5  
Check Power Mode  
H
Device Configuration Freeze Lock  
Device Configuration Identify  
Device Configuration Restore  
Device Configuration Set  
B1 / C1  
H
H
H
H
H
B1 / C2  
H
B1 / C0  
H
B1 / C3  
H
32  
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Serial ATA (SATA) Interface  
Command name  
Device Reset  
Command code (in hex)  
08  
92  
90  
H
H
H
Download Microcode  
Execute Device Diagnostics  
Flush Cache  
E7  
H
Flush Cache Extended  
Format Track  
EA  
H
50  
H
Identify Device  
EC  
H
Idle  
E3  
E1  
H
Idle Immediate  
H
H
Initialize Device Parameters  
Read Buffer  
91  
E4  
H
Read DMA  
C8  
H
H
H
Read DMA Extended  
Read DMA Without Retries  
Read Log Ext  
25  
H
C9  
2F  
H
Read Multiple  
C4  
Read Multiple Extended  
Read Native Max Address  
Read Native Max Address Extended  
Read Sectors  
29  
F8  
27  
20  
24  
21  
40  
42  
41  
10  
F6  
F3  
F4  
F5  
F1  
F2  
70  
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Read Sectors Extended  
Read Sectors Without Retries  
Read Verify Sectors  
Read Verify Sectors Extended  
Read Verify Sectors Without Retries  
Recalibrate  
Security Disable Password  
Security Erase Prepare  
Security Erase Unit  
Security Freeze  
Security Set Password  
Security Unlock  
Seek  
Set Features  
EF  
H
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33  
                                                                   
Serial ATA (SATA) Interface  
Command name  
Command code (in hex)  
F9  
Set Max Address  
H
Note: Individual Set Max Address  
commands are identified by the  
value placed in the Set Max  
Features register as defined to the  
right.  
Address:  
Password:  
Lock:  
00  
01  
02  
03  
04  
H
H
H
H
H
Unlock:  
Freeze Lock:  
Set Max Address Extended  
Set Multiple Mode  
37  
H
C6  
H
H
Sleep  
E6  
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Enable/Disable Autosave  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Execute Offline  
S.M.A.R.T. Read Attribute Thresholds  
S.M.A.R.T. Read Data  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Return Status  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Write Log Sector  
Standby  
B0 / D9  
H
H
H
H
H
H
H
H
B0 / D2  
H
B0 / D8  
H
B0 / D4  
H
B0 / D1  
H
B0 / D0  
H
B0 / D5  
H
B0 / DA  
H
H
H
H
B0 / D3  
H
B0 / D6  
H
E2  
E0  
E8  
H
H
H
Standby Immediate  
Write Buffer  
Write DMA  
CA  
H
Write DMA Extended  
Write DMA FUA Extended  
Write DMA Without Retries  
Write Log Extended  
35  
H
3D  
H
CB  
H
3F  
H
Write Multiple  
C5  
39  
H
Write Multiple Extended  
Write Multiple FUA Extended  
Write Sectors  
H
CE  
H
30  
31  
34  
45  
H
Write Sectors Without Retries  
Write Sectors Extended  
Write Uncorrectable  
H
H
H
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Barracuda SATA Product Manual, Rev. B  
                                                       
Serial ATA (SATA) Interface  
4.3.1 Identify Device command  
The Identify Device command (command code EC ) transfers information about the drive to the host following  
H
power up. The data is organized as a single 512-byte block of data, whose contents are shown in on page 32. All  
reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state  
of the drive.  
The following commands contain drive-specific features that may not be included in the Serial ATA specification.  
Word  
Description  
Value  
0C5A  
0
Configuration information:  
• Bit 15: 0 = ATA; 1 = ATAPI  
• Bit 7: removable media  
• Bit 6: removable controller  
• Bit 0: reserved  
H
1
Number of logical cylinders  
16,383  
2
ATA-reserved  
0000  
16  
H
3
Number of logical heads  
4
Retired  
0000  
0000  
003F  
0000  
H
H
H
H
5
Retired  
6
Number of logical sectors per logical track: 63  
Retired  
7–9  
10–19  
20  
Serial number: (20 ASCII characters, 0000 = none)  
ASCII  
H
Retired  
Retired  
Obsolete  
0000  
0400  
0000  
x.xx  
H
H
H
21  
22  
23–26  
Firmware revision  
(8 ASCII character string, padded with blanks to end  
of string)  
27–46  
47  
Drive model number:  
(40 ASCII characters, padded with blanks to end of  
string)  
(Bits 7–0) Maximum sectors per interrupt on Read  
multiple and Write multiple (16)  
8010  
H
48  
49  
Reserved  
0000  
2F00  
H
Standard Standby timer, IORDY supported and may  
be disabled  
H
50  
51  
52  
53  
54  
55  
ATA-reserved  
0000  
0200  
0200  
0007  
H
H
H
H
PIO data-transfer cycle timing mode  
Retired  
Words 54–58, 64–70 and 88 are valid  
Number of current logical cylinders  
Number of current logical heads  
xxxx  
xxxx  
H
H
Barracuda SATA Product Manual, Rev. B  
35  
   
Serial ATA (SATA) Interface  
Word  
56  
Description  
Value  
Number of current logical sectors per logical track  
Current capacity in sectors  
xxxx  
xxxx  
H
H
H
57–58  
59  
Number of sectors transferred during a Read Multiple xxxx  
or Write Multiple command  
60–61  
Total number of user-addressable LBA sectors  
available  
0FFFFFFFh*  
(see Section 2.2 for related information)  
*Note: The maximum value allowed in this field is:  
0FFFFFFFh (268,435,455 sectors, 137GB). Drives  
with capacities over 137GB will have 0FFFFFFFh in  
this field and the actual number of user-addressable  
LBAs specified in words 100-103. This is required for  
drives that support the 48-bit addressing feature.  
62  
63  
Retired  
0000  
H
Multiword DMA active and modes supported  
(see note following this table)  
xx07  
H
64  
65  
66  
Advanced PIO modes supported (modes 3 and 4  
supported)  
0003  
0078  
0078  
H
H
H
Minimum multiword DMA transfer cycle time per  
word (120 nsec)  
Recommended multiword DMA transfer cycle time  
per word  
(120 nsec)  
67  
68  
Minimum PIO cycle time without IORDY flow control  
(240 nsec)  
00F0  
H
Minimum PIO cycle time with IORDY flow control (120 0078  
nsec)  
H
69–74  
75  
ATA-reserved  
0000  
001F  
H
Queue depth  
H
76  
Serial ATA capabilities  
Reserved for future Serial ATA definition  
Serial ATA features supported  
Serial ATA features enabled  
Major version number  
xxxx  
xxxx  
xxxx  
xxxx  
H
77  
H
H
H
78  
79  
80  
003E  
H
81  
Minor version number  
0028  
H
82  
Command sets supported  
Command sets supported  
364B  
7C03  
H
83  
H
84  
Command sets support extension  
(see note following this table)  
4003 See Word 108-111 note.  
H
(4003H = 0100000000000011 binary)  
85  
86  
Command sets enabled  
Command sets enabled  
30xx  
H
0001  
H
36  
Barracuda SATA Product Manual, Rev. B  
Serial ATA (SATA) Interface  
Word  
87  
Description  
Value  
Command sets enable extension  
4000  
H
H
88  
Ultra DMA support and current mode (see note  
following this table)  
xx3F  
89  
Security erase time  
0000  
0000  
H
H
90  
Enhanced security erase time  
Master password revision code  
Hardware reset value  
ATA-reserved  
92  
FFFE  
H
93  
xxxx  
H
95–99  
100–103  
0000  
H
Total number of user-addressable LBA sectors  
available (see Section 2.2 for related information).  
These words are required for drives that support the  
48-bit addressing feature. Maximum value:  
0000FFFFFFFFFFFFh.  
ST31000524AS = 1,953,525,168  
ST3750525AS = 1,465,149,168  
ST3500413AS = 976,773,168  
ST3320413AS = 625,142,448  
ST3250312AS = 488,397,168  
ST3160316AS = 312,581,808  
104–107  
108–111  
ATA-reserved  
0000  
H
The mandatory value of the world wide name (WWN)  
for the drive. NOTE: This field is valid if word 84, bit 8  
is set to 1 indicating 64-bit WWN support.  
Each drive will have a unique value.  
112–127  
128  
ATA-reserved  
Security status  
Seagate-reserved  
ATA-reserved  
Integrity word  
0000  
0001  
H
H
129–159  
160–254  
255  
xxxx  
H
0000  
xxA5  
H
H
Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features  
are not supported.  
Note  
Note  
See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.  
Description (if bit is set to 1)  
Bit  
0
Word 63  
Multiword DMA mode 0 is supported.  
Multiword DMA mode 1 is supported.  
Multiword DMA mode 2 is supported.  
Multiword DMA mode 0 is currently active.  
Multiword DMA mode 1 is currently active.  
Multiword DMA mode 2 is currently active.  
1
2
8
9
10  
Barracuda SATA Product Manual, Rev. B  
37  
Serial ATA (SATA) Interface  
Bit  
0
Word 84  
SMART error login is supported.  
1
SMART self-test is supported.  
2
Media serial number is supported.  
Media Card Pass Through Command feature set is supported.  
Streaming feature set is supported.  
GPL feature set is supported.  
3
4
5
6
WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.  
WRITE DMA QUEUED FUA EXT command is supported.  
64-bit World Wide Name is supported.  
Obsolete.  
7
8
9-10  
11-12  
13  
14  
15  
Bit  
0
Reserved for TLC.  
IDLE IMMEDIATE command with IUNLOAD feature is supported.  
Shall be set to 1.  
Shall be cleared to 0.  
Word 88  
Ultra DMA mode 0 is supported.  
Ultra DMA mode 1 is supported.  
Ultra DMA mode 2 is supported.  
Ultra DMA mode 3 is supported.  
Ultra DMA mode 4 is supported.  
Ultra DMA mode 5 is supported.  
Ultra DMA mode 6 is supported.  
Ultra DMA mode 0 is currently active.  
Ultra DMA mode 1 is currently active.  
Ultra DMA mode 2 is currently active.  
Ultra DMA mode 3 is currently active.  
Ultra DMA mode 4 is currently active.  
Ultra DMA mode 5 is currently active.  
Ultra DMA mode 6 is currently active.  
1
2
3
4
5
6
8
9
10  
11  
12  
13  
14  
38  
Barracuda SATA Product Manual, Rev. B  
Serial ATA (SATA) Interface  
4.3.2 Set Features command  
This command controls the implementation of various features that the drive supports. When the drive receives  
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If  
the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on  
default has the read look-ahead and write caching features enabled. The acceptable values for the Features  
register are defined as follows:  
02  
03  
Enable write cache (default).  
H
Set transfer mode (based on value in Sector Count register).  
Sector Count register values:  
H
00 Set PIO mode to default (PIO mode 2).  
H
01 Set PIO mode to default and disable IORDY (PIO mode 2).  
H
08 PIO mode 0  
H
09 PIO mode 1  
H
0A PIO mode 2  
H
0B PIO mode 3  
H
0C PIO mode 4 (default)  
H
20 Multiword DMA mode 0  
H
21 Multiword DMA mode 1  
H
22 Multiword DMA mode 2  
H
40 Ultra DMA mode 0  
H
41 Ultra DMA mode 1  
H
42 Ultra DMA mode 2  
H
43 Ultra DMA mode 3  
H
44 Ultra DMA mode 4  
H
45 Ultra DMA mode 5  
H
46 Ultra DMA mode 6  
H
10  
55  
82  
90  
Enable use of SATA features  
H
H
H
H
Disable read look-ahead (read cache) feature.  
Disable write cache  
Disable use of SATA features  
AA  
Enable read look-ahead (read cache) feature (default).  
Report full capacity available  
H
F1  
H
At power-on, or after a hardware or software reset, the default values of the features are as  
indicated above.  
Note  
Barracuda SATA Product Manual, Rev. B  
39  
 
Serial ATA (SATA) Interface  
4.3.3 S.M.A.R.T. commands  
S.M.A.R.T. provides near-term failure prediction for disk drives. When S.M.A.R.T. is enabled, the drive monitors  
predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines that a  
failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable. S.M.A.R.T.  
predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T. commands and  
implementation, see the Draft ATA-5 Standard.  
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4 ) that eliminates  
H
unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:  
This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that  
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive  
uses.  
Code in features register S.M.A.R.T. command  
D0  
D2  
D3  
D4  
D5  
D6  
D8  
D9  
S.M.A.R.T. Read Data  
H
H
H
H
H
H
H
H
S.M.A.R.T. Enable/Disable Attribute Autosave  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Execute Off-line Immediate (runs DST)  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Write Log Sector  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Return Status  
DA  
H
If an appropriate code is not written to the Features Register, the command is aborted and  
0x04 (abort) is written to the Error register.  
Note  
40  
Barracuda SATA Product Manual, Rev. B  
 
Serial ATA (SATA) Interface  
Barracuda SATA Product Manual, Rev. B  
41  
 
Serial ATA (SATA) Interface  
42  
Barracuda SATA Product Manual, Rev. B  
Index  
A
E
Electromagnetic Compatibility control Regula-  
Electromagnetic  
Compatibility  
Directive  
Australia/New Zealand Standard AS/NZ Electrostatic discharge 23  
B
C
F
G
H
D
I
Barracuda SATA Product Manual, Rev. B  
43  
Q
R
K
L
M
N
O
P
S
44  
Barracuda SATA Product Manual, Rev. B  
U
V
W
T
Barracuda SATA Product Manual, Rev. B  
45  
Seagate Technology LLC  
AMERICAS  
ASIA/PACIFIC  
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550  
Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888  
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 16-18 rue du Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00  
Publication Number: 100636864, Rev. B  
March 2011  

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