Seagate BARRACUDA XT ST33000651AS User Manual

Product Manual  
®
Barracuda XT  
ST32000641AS  
ST33000651AS  
100586689  
Rev. D  
September 2010  
Contents  
4.3.3  
Barracuda XT SATA Product Manual, Rev. D  
Barracuda XT SATA Product Manual, Rev. D  
Barracuda XT SATA Product Manual, Rev. D  
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 XT SATA Product Manual, Rev. D  
7
 
8
Barracuda XT SATA Product Manual, Rev. D  
1.0 Introduction  
This manual describes the functional, mechanical and interface specifications for the following Seagate  
Barracuda® XT model drives:  
ST33000651AS  
ST32000641AS  
These drives provide the following key features:  
• The SATA 6Gb/s interface enables the use of the industry’s newest and fastest hard drive controllers while  
providing backward compatibility to legacy SATA 1.5Gb/s or 3Gb/s systems.  
• 7,200 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.  
• 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  
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  
Barracuda XT SATA Product Manual, Rev. D  
9
                 
Drive Specifications  
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:  
ST33000651AS  
ST32000641AS  
The specification summaries 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 3000GB and 2000GB models  
Drive specification  
ST33000651AS  
ST32000641AS  
Formatted capacity (512 bytes/sector)*  
Guaranteed sectors  
3000GB (3TB)  
2000GB (2TB)  
5,860,533,168  
3,907,029,168  
Heads  
10  
8
Disks  
5
4
Bytes per sector  
512  
512  
Default sectors per track  
Default read/write heads  
Default cylinders  
63  
63  
16  
16  
16,383  
1941 kb/in  
270 ktracks/in  
16,383  
1721 kb/in  
240 ktracks/in  
Recording density  
Track density(avg)  
2
2
Areal density (avg)  
488Gb/in  
347Gb/in  
Spindle speed  
7200 RPM  
1900Mb/s  
149MB/s  
600MB/s  
7200 RPM  
1300Mb/s  
138MB/s  
600MB/s  
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  
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  
64MB  
64MB  
Height (max)  
26.1mm / 1.028 in  
101.85mm / 4.010 in  
146.99mm / 5.787 in  
700g / 1.543 lb  
4.16ms  
26.1mm / 1.028 in  
101.85mm / 4.010 in  
146.99mm / 5.787 in  
700g / 1.543 lb  
4.16ms  
Width (max)  
Length (max)  
Weight (typical)  
Average latency  
Power-on to ready (typical)  
Standby to ready (typical)  
Startup current (typical) 12V (peak)  
Voltage tolerance (including noise)  
18s  
15s  
18s  
15s  
2.0A  
2.8A  
5V + 5%  
12V + 10%  
5V + 5%  
12V + 10%  
Operating temperature  
(Drive Case temperature)  
0° to 60°C  
0° to 60°C  
Nonoperating temperature (Ambient)  
Temperature gradient (max)  
–40° to 70°C  
–40° to 70°C  
20°C per hour max (operating)  
30°C per hour max (nonoperating)  
20°C per hour max (operating)  
30°C per hour max (nonoperating)  
Relative humidity  
5% to 95% (operating)  
5% to 95% (nonoperating)  
5% to 95% (operating)  
5% to 95% (nonoperating)  
Relative humidity gradient (max)  
Wet bulb temperature (max)  
30% per hour  
30% per hour  
37.7°C max (operating)  
40.0°C max (nonoperating)  
37.7°C max (operating)  
40.0°C max (nonoperating)  
10  
Barracuda XT SATA Product Manual, Rev. D  
     
Drive Specifications  
Table 1 Drive specifications summary for 3000GB and 2000GB models (continued)  
Drive specification  
ST33000651AS  
ST32000641AS  
Altitude, operating  
–60.96m to 3,048m  
(–200 ft to 10,000+ ft)  
–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)  
–60.96m to 12,192m  
(–200 ft to 40,000+ ft)  
Operational Shock (max)  
Non-Operational Shock (max)  
Vibration, operating  
63 Gs at 2ms  
300 Gs at 2ms  
63 Gs at 2ms  
300 Gs at 2ms  
5 to 350Hz: 0.50 Gs  
350 to 500Hz: 0.25 Gs  
5 to 350Hz: 0.50 Gs  
350 to 500Hz: 0.25 Gs  
Vibration, nonoperating  
5 to 350Hz: 5.0 Gs  
350 to 500Hz: 2.0 Gs  
5 to 350Hz: 5.0 Gs  
350 to 500Hz: 2.0 Gs  
Drive acoustics, sound power  
Idle**  
2.7 bels (typical)  
2.9 bels (max)  
2.7 bels (typical)  
2.9 bels (max)  
Performance  
2.9 bels (typical)  
3.1 bels (max)  
2.9 bels (typical)  
3.3 bels (max)  
14  
14  
Nonrecoverable read errors  
Warranty  
1 per 10 bits read  
1 per 10 bits read  
To determine the warranty for a specific drive, use a web browser to access the following  
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.  
Load-unload cycles  
300,000 at 25°C, 50% rel. humidity  
Yes  
300,000 at 25°C, 50% rel. humidity  
Yes  
Supports Hotplug operation per the  
Serial ATA Revision 3.0 specification  
*One Gbyte 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.  
2.1 Formatted capacity  
Model  
Formatted capacity*  
3000GB  
Guaranteed sectors  
5,860,533,168  
Bytes per sector  
ST33000651AS  
ST32000641AS  
512  
512  
2000GB  
3,907,029,168  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment  
and formatting.  
2.1.1 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.  
addressing support of drives with capacities over 137GB.  
2.2 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.  
Barracuda XT SATA Product Manual, Rev. D  
11  
                             
Drive Specifications  
2.3 Recording and interface technology  
ST33000651AS  
ST32000641AS  
SATA  
Interface  
SATA  
Recording method  
Perpendicular  
1941kb/in  
277 ktracks/in  
Perpendicular  
1721kb/in  
Recording density (kbits/inch max)  
Track density (ktracks/inch avg)  
240 ktracks/in  
2
2
2
Areal density (Gbits/inch avg)  
488Gb/in  
347Gb/in  
Spindle speed (RPM)  
7200 + 0.2%  
1900Mb/s  
7200 + 0.2%  
1300Mb/s  
Internal data transfer rate  
(Mb/s max)  
Sustained data transfer rate  
(MB/s max)  
149MB/s  
600MB/s  
138MB/s  
600MB/s  
I/O data-transfer rate (MB/s max)  
2.4 Physical characteristics  
ST33000651AS  
ST32000641AS  
Maximum height  
Maximum width  
Maximum length  
Typical weight  
Cache buffer  
26.1mm / 1.028 in  
101.85mm / 4.010 in  
146.99mm / 5.787 in  
700g / 1.543 lb  
26.1mm / 1.028 in  
101.85mm / 4.010 in  
146.99mm / 5.787 in  
700g / 1.543 lb  
64MB (64,768kb)  
64MB (64,768kb)  
2.5 Start/stop times  
3000GB  
18.0  
2000GB  
15.0  
Power-on to ready (s) max.  
Standby to ready (s) max.  
Ready to spindle stop (s) max.  
18.0  
15.0  
20.0  
20.0  
2.6 Power specifications  
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 5 on page 24.  
Power consumption  
Power requirements for the drives are listed in the table on page 9. 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.  
• Seek mode  
During seek mode, the read/write actuator arm moves toward a specific position on the disk surface and does  
not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-  
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Barracuda XT SATA Product Manual, Rev. D  
                                                                 
Drive Specifications  
case power consumption, using only random seeks with read or write latency time. This mode is not typical and  
is provided for worst-case information.  
• 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.  
Table 2 DC power requirements (3TB)  
Power dissipation  
Spinup  
Avg (watts 25° C)  
Avg 5V typ amps  
Avg 12V typ amps  
2.0 (peak)  
0.501  
Idle* †  
7.37  
9.2  
0.272  
0.628  
0.082  
0.082  
Operating (average)  
Standby  
0.506  
0.55  
0.55  
0.012  
Sleep  
0.012  
Table 3 DC power requirements (2TB)  
Power dissipation  
Spinup  
Avg (watts 25° C)  
Avg 5V typ amps  
Avg 12V typ amps  
2.8 (peak)  
0.42  
Idle* †  
6.39  
9.23  
0.57  
0.57  
0.27  
0.31  
0.09  
0.09  
Operating (average)  
Standby  
0.64  
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  
Drive supports PHY layer power management. When enabled, a power savings of ~300mw can be  
achieved in idle, standby and sleep modes.  
Note  
Barracuda XT SATA Product Manual, Rev. D  
13  
                         
Drive Specifications  
2.6.0.1 Typical 5V startup and operation current profiles (3000GB)  
Figure 1 5V current profile (3000GB)  
2.6.0.2 Typical 12V startup and operation current profiles (3000GB)  
Figure 2 12V current profile (3000GB)  
14  
Barracuda XT SATA Product Manual, Rev. D  
     
Drive Specifications  
2.6.0.3 Typical 5V startup and current profiles (2000GB)  
Figure 3 5V current profile (2000GB)  
2.6.0.4 Typical 12V startup and current profiles (2000GB)  
Figure 4 12V current profile (2000GB)  
Barracuda XT SATA Product Manual, Rev. D  
15  
   
Drive Specifications  
2.6.1 Conducted noise  
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the  
+12V line or an equivalent 15-ohm resistive load on the +5V line.  
• Using 12-V 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-V 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  
2.6.2 Voltage tolerance  
Voltage tolerance (including noise):  
5V + 5%  
12V + 10 %  
2.6.3 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  
specifiable 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  
commands 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.  
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Drive Specifications  
2.7 Environmental specifications  
2.7.1 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)  
Nonoperating *  
–40° to 70°C (–40° to 158°F)  
* See Section for reliability projections.  
2.7.2 Temperature gradient  
Operating  
20°C per hour (68°F per hour  
max), without condensation  
Nonoperating  
30°C per hour (86°F per hour  
max)  
2.7.3 Humidity  
2.7.3.1 Relative humidity  
Operating  
5% to 95% noncondensing  
(30% per hour max)  
Nonoperating  
5% to 95% noncondensing  
(30% per hour max)  
2.7.3.2 Wet bulb temperature  
Operating  
37.7°C (99.9°F max)  
40°C (104°F max)  
Nonoperating  
2.7.4 Altitude  
Operating  
–60.96m to 3,048m (–200 ft  
to 10,000+ ft)  
Nonoperating  
–60.96m to 12,192m (–200 ft  
to 40,000+ ft)  
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17  
                           
Drive Specifications  
2.7.5 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.  
2.7.5.1 Operating shock  
These drives comply with the performance levels specified in this document when subjected to a maximum  
operating shock of 63 Gs based on half-sine shock pulses of 2ms during read operations. Shocks should not be  
repeated more than two times per second.  
2.7.5.2 Nonoperating shock  
The nonoperating 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 nonrepetitive half-sine shock pulse of  
2ms duration.  
2.7.6 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.  
2.7.6.1 Operating vibration  
The maximum vibration levels that the drive may experience while meeting the performance standards specified  
in this document are specified below.  
5 to 350Hz  
0.50 Gs  
0.25 Gs  
350 to 500Hz  
2.7.6.2 Nonoperating vibration  
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or  
degradation in performance when subsequently put into operation are specified below.  
5 to 350Hz  
5.0 Gs  
2.0 Gs  
350 to 500Hz  
2.8 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:  
(Number of seeks per second = 0.4 / (average latency + average access time)  
Note  
Table 4 Drive A-weighted Sound Power Levels (SWL, BA)  
[1]  
Model  
Performance Seek  
Idle  
2.7 bels (typ)  
2.9 bels (max)  
2.9 bels (typ)  
3.1 bels (max)  
3000GB  
2.7 bels (typ)  
2.9 bels (max)  
2.9 bels (typ)  
3.3 bels (max)  
2000GB  
[1] 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.  
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Drive Specifications  
2.8.1 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.  
2.9 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:  
Table 5 Radio frequency environments  
Reference  
standard  
Test  
Description  
Performance level  
Electrostatic  
discharge  
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV  
B
EN61000-4-2: 95  
Radiated RF  
immunity  
80 to 1,000MHz, 3 V/m,  
80% AM with 1kHz sine  
900MHz, 3 V/m, 50% pulse modulation @  
200Hz  
A
EN61000-4-3: 96  
ENV 50204: 95  
Electrical fast  
transient  
± 1 kV on AC mains, ± 0.5 kV on external I/O  
B
B
A
EN61000-4-4: 95  
EN61000-4-5: 95  
EN61000-4-6: 97  
EN61000-4-11: 94  
Surge immu-  
nity  
± 1 kV differential, ± 2 kV common, AC mains  
Conducted RF 150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz  
immunity  
sine  
Voltage dips,  
interrupts  
0% open, 5 seconds  
0% short, 5 seconds  
40%, 0.10 seconds  
70%, 0.01 seconds  
C
C
C
B
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19  
                     
Drive Specifications  
2.10 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.  
2.11 Agency certification  
2.11.1 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.  
2.11.2 Electromagnetic Compatibility (EMC)  
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 EN55022, Class B and the immunity levels are defined by EN55024.  
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  
• Certificate number:In process  
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).  
2.11.3 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 noncertified 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.  
20  
Barracuda XT SATA Product Manual, Rev. D  
                                                                 
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.  
2.12 Environmental protection  
Seagate designs its products to meet environmental protection requirements worldwide, including regulations  
restricting certain chemical substances.  
2.12.1 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.  
2.12.2 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.  
"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.  
2.13 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  
Barracuda XT SATA Product Manual, Rev. D  
21  
               
Drive Specifications  
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.  
22  
Barracuda XT SATA Product Manual, Rev. D  
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 6 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.  
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23  
                           
Configuring and Mounting the Drive  
For installations which require cables, you can connect the drive as illustrated in Figure 5.  
Figure 5 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 6 and Figure 7 for drive mounting dimensions. Follow these important  
mounting precautions when mounting the drive:  
• Allow a minimum clearance of 0.030 inches (0.76 mm) 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 (3.81 mm) into the bottom or side mounting holes.  
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).  
24  
Barracuda XT SATA Product Manual, Rev. D  
     
Figure 6 Mounting dimensions (3000GB model)  
Barracuda XT SATA Product Manual, Rev. D  
25  
   
Configuring and Mounting the Drive  
Figure 7 Mounting dimensions (2000GB model)  
26  
Barracuda XT SATA Product Manual, Rev. D  
   
4.0 SATA Interface  
These drives use the industry-standard Serial ATA(SATA) 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 6 summarizes the signals on the Serial ATA interface and power connectors.  
Table 6 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  
P1  
V33  
3.3V power  
Power  
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27  
         
SATA Interface  
Table 6 Serial ATA connector pin definitions (continued)  
Segment Pin  
Function  
V33  
Definition  
P2  
3.3V power  
P3  
V33  
3.3V power, pre-charge, 2nd mate  
P4  
Ground  
Ground  
Ground  
V5  
1st mate  
P5  
2nd mate  
P6  
2nd mate  
P7  
5V power, pre-charge, 2nd mate  
5V power  
P8  
V5  
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.  
4. All used voltage pins (Vx) must be terminated.  
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Barracuda XT SATA Product Manual, Rev. D  
SATA Interface  
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).  
Table 7 Supported ATA commands  
Command name  
Command code (in hex)  
E5  
Check Power Mode  
Device Configuration Freeze Lock  
Device Configuration Identify  
Device Configuration Restore  
Device Configuration Set  
Device Reset  
H
B1 / C1  
H
H
H
H
H
B1 / C2  
H
B1 / C0  
H
B1 / C3  
H
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  
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  
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29  
                                                                 
SATA Interface  
Table 7 Supported ATA commands (continued)  
Command name  
Recalibrate  
Command code (in hex)  
10  
F6  
F3  
F4  
F5  
F1  
F2  
70  
H
H
H
H
H
H
H
H
Security Disable Password  
Security Erase Prepare  
Security Erase Unit  
Security Freeze  
Security Set Password  
Security Unlock  
Seek  
Set Features  
EF  
H
H
Set Max Address  
F9  
Note: Individual Set Max Address  
commands are identified by the  
value placed in the Set Max Fea-  
tures register as defined to the right.  
Address: 00  
Password: 01  
Lock: 02  
H
H
H
H
H
Unlock: 03  
Freeze Lock: 04  
Set Max Address Extended  
Set Multiple Mode  
37  
H
C6  
H
Sleep  
E6  
H
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
B0 / D2  
H
H
H
H
H
H
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  
35  
H
Write DMA FUA Extended  
Write DMA Without Retries  
3D  
H
CB  
H
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SATA Interface  
Table 7 Supported ATA commands (continued)  
Command name  
Command code (in hex)  
3F  
Write Log Extended  
Write Multiple  
H
C5  
H
Write Multiple Extended  
Write Multiple FUA Extended  
Write Sectors  
39  
H
CE  
H
30  
31  
34  
45  
H
Write Sectors Without Retries  
Write Sectors Extended  
Write Uncorrectable  
H
H
H
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 29. 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  
Configuration information:  
• Bit 15: 0 = ATA; 1 = ATAPI  
• Bit 7: removable media  
• Bit 6: removable controller  
• Bit 0: reserved  
0
0C5A  
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  
21  
22  
Serial number: (20 ASCII characters, 0000 = none)  
ASCII  
H
Retired  
Retired  
Obsolete  
0000  
0400  
0000  
H
H
H
Firmware revision  
(8 ASCII character string, padded with blanks to end of  
string)  
23–26  
x.xx  
Drive model number:  
27–46  
47  
(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
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31  
                   
SATA Interface  
Word  
Description  
Value  
48  
Reserved  
0000  
2F00  
H
Standard Standby timer, IORDY supported and may be dis-  
abled  
49  
H
50  
ATA-reserved  
0000  
0200  
0200  
0007  
H
H
H
H
51  
PIO data-transfer cycle timing mode  
Retired  
52  
53  
Words 54–58, 64–70 and 88 are valid  
Number of current logical cylinders  
Number of current logical heads  
Number of current logical sectors per logical track  
Current capacity in sectors  
54  
xxxx  
xxxx  
xxxx  
xxxx  
H
55  
H
H
H
56  
57–58  
Number of sectors transferred during a Read Multiple  
or Write Multiple command  
59  
xxxx  
H
Total number of user-addressable LBA sectors available  
*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.  
60–61  
0FFFFFFFh*  
62  
63  
Retired  
0000  
H
Multiword DMA active and modes supported  
(see note following this table)  
xx07  
H
Advanced PIO modes supported (modes 3 and 4 sup-  
ported)  
64  
65  
0003  
0078  
H
H
Minimum multiword DMA transfer cycle time per word (120  
nsec)  
Recommended multiword DMA transfer cycle time per  
66  
67  
word  
0078  
H
H
(120 nsec)  
Minimum PIO cycle time without IORDY flow control (240  
nsec)  
00F0  
68  
Minimum PIO cycle time with IORDY flow control (120 nsec) 0078  
H
H
H
69–74  
75  
ATA-reserved  
0000  
001F  
Queue depth  
76  
Serial ATA capabilities  
Reserved for future Serial ATA definition  
Serial ATA features supported  
Serial ATA features enabled  
xxxx  
xxxx  
xxxx  
xxxx  
H
77  
H
H
H
78  
79  
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Barracuda XT SATA Product Manual, Rev. D  
SATA Interface  
Word  
80  
Description  
Value  
Major version number  
003E  
H
H
81  
Minor version number  
Command sets supported  
Command sets supported  
0028  
82  
346B  
H
H
83  
7F01  
4163 See Word 108-111 note.  
H
Command sets support extension  
(see note following this table)  
84  
(4163 = 0100000101100011  
H
binary)  
85  
86  
87  
Command sets enabled  
34xx  
H
Command sets enabled  
BE01  
H
Command sets enable extension  
4163  
H
Ultra DMA support and current mode (see note following  
this table)  
88  
xx7F  
H
89  
Security erase time  
00DE  
00DE  
H
H
H
90  
Enhanced security erase time  
Master password revision code  
Hardware reset value  
ATA-reserved  
92  
FFFE  
xxxx  
93  
H
95–99  
0000  
H
Total number of user-addressable LBA sectors available  
required for drives that support the 48-bit addressing fea-  
ture. Maximum value: 0000FFFFFFFFFFFFh.  
ST33000651AS = 5,860,533,168  
ST32000641AS = 3,907,029,168  
100–103  
104–107  
108–111  
ATA-reserved  
0000  
H
The mandatory value of the world wide name (WWN) for the Each drive will have a unique  
drive. NOTE: This field is valid if word 84, bit 8 is set to 1  
indicating 64-bit WWN support.  
value.August 2010  
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.  
Barracuda XT SATA Product Manual, Rev. D  
33  
SATA Interface  
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.  
Word 84  
1
2
8
9
10  
Bit  
0
SMART error login is supported.  
SMART self-test is supported.  
1
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.  
1
2
3
4
5
6
8
9
34  
Barracuda XT SATA Product Manual, Rev. D  
SATA Interface  
10  
11  
12  
13  
14  
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.  
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:  
Table 8 Set Features command values  
02  
03  
Enable write cache (default).  
H
H
Set transfer mode (based on value in Sector Count register).  
Sector Count register values:  
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).  
H
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35  
 
SATA Interface  
Table 8 Set Features command values (continued)  
F1  
Report full capacity available  
H
At power-on, or after a hardware or software reset, the default values of the features are as  
indicated above.  
Note  
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.  
Table 9 S.M.A.R.T. commands  
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  
36  
Barracuda XT SATA Product Manual, Rev. D  
 
Index  
A
F
B
G
C
H
I
D
K
L
E
M
N
Electromagnetic Compatibility Directive (2004/108/EC) noise 16  
O
Barracuda XT SATA Product Manual, Rev. D  
37  
P
Q
R
T
U
S
V
W
38  
Barracuda XT SATA Product Manual, Rev. D  
40  
Barracuda XT SATA Product Manual, Rev. D  
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: 100586689, Rev. D  
September 2010  

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