Product Manual
Barracuda®XT
ST32000641AS
ST33000651AS
100586689
Rev. D
September 2010
Revision History
Revision Date Description of changes
Rev. A 09/15/2009 Initial release.
Rev. B 11/20/2009 Updated drive specifications on Tables 1-3; added “Warranty” specific section. Made minor
text edits throughout.
Rev. C 01/08/2010 Corrected publication part number.
Rev. D 09/10/2010 Added 3000GB (3TB) model and corresponding specifications throughout.
Copyright © 2010 Seagate Technology LLC. All rights reserved.
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United
States and/or other countries. Barracuda, SeaTools and SeaTDD are either trademarks or registered trademarks of
Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other
trademarks or registered trademarks are the property of their respective owners.
When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion
bytes. Your computer's operating system may use a different standard of measurement and report a lower capacity. In
addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data
storage. Seagate reserves the right to change, without notice, product offerings or specifications.
Contents
Seagate Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.0 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6.1 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6.2 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6.3 Power management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.7.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.8 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.8.1 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.9 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11 Agency certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11.2 Electromagnetic Compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.12 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.12.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 21
2.12.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 21
2.13 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.0 Configuring and Mounting the Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Handling and static-discharge precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.0 SATA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Barracuda XT SATA Product Manual, Rev. D
Barracuda XT SATA Product Manual, Rev. D
Figures
Figure 1 5V current profile (3000GB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 2 12V current profile (3000GB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 3 5V current profile (2000GB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 4 12V current profile (2000GB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 5 Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 6 Mounting dimensions (3000GB model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 7 Mounting dimensions (2000GB model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Barracuda XT SATA Product Manual, Rev. D
Barracuda XT SATA Product Manual, Rev. D
Seagate Technology Support Services
For information regarding online support and services, visit http://www.seagate.com/www/en-us/about/
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
For information regarding data recovery services, visit http://www.i365.com
For Seagate OEM and Distribution partner portal, visit https://direct.seagate.com/portal/system
For Seagate reseller portal, visit http://spp.seagate.com
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
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
Organization: Serial ATA Revision 3.0”. The specification can be downloaded from www.sata-io.org.
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.
Barracuda XT SATA Product Manual, Rev. D 9
Drive Specifications www.seagate.com
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)* 3000GB (3TB) 2000GB (2TB)
Guaranteed sectors 5,860,533,168 3,907,029,168
Heads 10 8
Disks 5 4
Bytes per sector 512 512
Default sectors per track 63 63
Default read/write heads 16 16
Default cylinders 16,383 16,383
Recording density 1941 kb/in 1721 kb/in
Track density(avg) 270 ktracks/in 240 ktracks/in
Areal density (avg) 488Gb/in
Spindle speed 7200 RPM 7200 RPM
Internal data transfer rate (max) 1900Mb/s 1300Mb/s
Sustained data transfer rate OD(max) 149MB/s 138MB/s
I/O data-transfer rate (max) 600MB/s 600MB/s
ATA data-transfer modes supported PIO modes: 0 to 4
Cache buffer 64MB 64MB
Height (max) 26.1mm / 1.028 in 26.1mm / 1.028 in
Width (max) 101.85mm / 4.010 in 101.85mm / 4.010 in
Length (max) 146.99mm / 5.787 in 146.99mm / 5.787 in
Weight (typical) 700g / 1.543 lb 700g / 1.543 lb
Average latency 4.16ms 4.16ms
Power-on to ready (typical) 18s 15s
Standby to ready (typical) 18s 15s
Startup current (typical) 12V (peak) 2.0A 2.8A
Voltage tolerance (including noise) 5V + 5%
Operating temperature
(Drive Case temperature)
Nonoperating temperature (Ambient) –40° to 70°C –40° to 70°C
Temperature gradient (max) 20°C per hour max (operating)
Relative humidity 5% to 95% (operating)
Relative humidity gradient (max) 30% per hour 30% per hour
Wet bulb temperature (max) 37.7°C max (operating)
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
12V + 10%
0° to 60°C 0° to 60°C
30°C per hour max (nonoperating)
5% to 95% (nonoperating)
40.0°C max (nonoperating)
2
347Gb/in
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
5V + 5%
12V + 10%
20°C per hour max (operating)
30°C per hour max (nonoperating)
5% to 95% (operating)
5% to 95% (nonoperating)
37.7°C max (operating)
40.0°C max (nonoperating)
2
10 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
Drive Specifications
Table 1 Drive specifications summary for 3000GB and 2000GB models (continued)
Drive specification ST33000651AS ST32000641AS
Altitude, operating –60.96m to 3,048m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock (max) 63 Gs at 2ms 63 Gs at 2ms
Non-Operational Shock (max) 300 Gs at 2ms 300 Gs at 2ms
Vibration, operating 5 to 350Hz: 0.50 Gs
Vibration, nonoperating 5 to 350Hz: 5.0 Gs
Drive acoustics, sound power
Idle** 2.7 bels (typical)
Performance 2.9 bels (typical)
Nonrecoverable read errors 1 per 10
Warranty To determine the warranty for a specific drive, use a web browser to access the following
Load-unload cycles 300,000 at 25°C, 50% rel. humidity 300,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
Serial ATA Revision 3.0 specification
(–200 ft to 10,000+ ft)
–60.96m to 12,192m
(–200 ft to 40,000+ ft)
350 to 500Hz: 0.25 Gs
350 to 500Hz: 2.0 Gs
2.9 bels (max)
3.1 bels (max)
14
bits read 1 per 10
web page: support.seagate.com/customer/warranty_validation.jsp
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.
Yes Yes
–60.96m to 3,048m
(–200 ft to 10,000+ ft)
–60.96m to 12,192m
(–200 ft to 40,000+ ft)
5 to 350Hz: 0.50 Gs
350 to 500Hz: 0.25 Gs
5 to 350Hz: 5.0 Gs
350 to 500Hz: 2.0 Gs
2.7 bels (typical)
2.9 bels (max)
2.9 bels (typical)
3.3 bels (max)
14
bits read
*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* Guaranteed sectors Bytes per sector
ST33000651AS 3000GB 5,860,533,168 512
ST32000641AS 2000GB 3,907,029,168 512
*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.
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.
2.2 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 www.seagate.com
2.3 Recording and interface technology
ST33000651AS ST32000641AS
Interface SATA SATA
Recording method Perpendicular Perpendicular
Recording density (kbits/inch max) 1941kb/in 1721kb/in
Track density (ktracks/inch avg) 277 ktracks/in 240 ktracks/in
Areal density (Gbits/inch2 avg) 488Gb/in
Spindle speed (RPM) 7200 + 0.2% 7200 + 0.2%
2
347Gb/in
2
Internal data transfer rate
(Mb/s max)
Sustained data transfer rate
(MB/s max)
I/O data-transfer rate (MB/s max) 600MB/s 600MB/s
2.4 Physical characteristics
Maximum height 26.1mm / 1.028 in 26.1mm / 1.028 in
Maximum width 101.85mm / 4.010 in 101.85mm / 4.010 in
Maximum length 146.99mm / 5.787 in 146.99mm / 5.787 in
Typical weight 700g / 1.543 lb 700g / 1.543 lb
Cache buffer 64MB (64,768kb) 64MB (64,768kb)
1900Mb/s 1300Mb/s
149MB/s 138MB/s
ST33000651AS ST32000641AS
2.5 Start/stop times
3000GB 2000GB
Power-on to ready (s) max. 18.0 15.0
Standby to ready (s) max. 18.0 15.0
Ready to spindle stop (s) max. 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-
12 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
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 Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0 (peak)
Idle* † 7.37 0.272 0.501
Operating (average) 9.2 0.628 0.506
Standby 0.55 0.082 0.012
Sleep 0.55 0.082 0.012
Table 3 DC power requirements
(2TB)
Power dissipation Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.8 (peak)
Idle* † 6.39 0.27 0.42
Operating (average) 9.23 0.31 0.64
Standby 0.57 0.09 0.01
Sleep 0.57 0.09 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
Note
Barracuda XT SATA Product Manual, Rev. D 13
Drive supports PHY layer power management. When enabled, a power savings of ~300mw can be
achieved in idle, standby and sleep modes.
Drive Specifications www.seagate.com
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
www.seagate.com
2.6.0.3 Typical 5V startup and current profiles (2000GB)
Figure 3 5V current profile (2000GB)
Drive Specifications
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 www.seagate.com
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.
Note
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/
write current.
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 Heads Spindle Buffer
Active Tracking Rotating Enabled
Idle Tracking Rotating Enabled
Standby Parked Stopped Enabled
Sleep Parked Stopped Disabled
• 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.
16 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
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 *
* See Section for reliability projections.
–40° to 70°C (–40° to 158°F)
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)
Nonoperating 40°C (104°F max)
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)
Barracuda XT SATA Product Manual, Rev. D 17
Drive Specifications www.seagate.com
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
350 to 500Hz 0.25 Gs
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
350 to 500Hz 2.0 Gs
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
Note
Table 4 Drive A-weighted Sound Power Levels (SWL, BA)
Model
3000GB
the following equation:
(Number of seeks per second = 0.4 / (average latency + average access time)
[1]
Idle
2.7 bels (typ)
2.9 bels (max)
Performance Seek
2.9 bels (typ)
3.1 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.
18 Barracuda XT SATA Product Manual, Rev. D
2.7 bels (typ)
2.9 bels (max)
2.9 bels (typ)
3.3 bels (max)
www.seagate.com
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
Test Description Performance level
Electrostatic
discharge
Radiated RF
immunity
Electrical fast
transient
Surge immunity
Conducted RF
immunity
Voltage dips,
interrupts
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN61000-4-2: 95
80 to 1,000MHz, 3 V/m,
80% AM with 1kHz sine
900MHz, 3 V/m, 50% pulse modulation @
200Hz
± 1 kV on AC mains, ± 0.5 kV on external I/O B EN61000-4-4: 95
± 1 kV differential, ± 2 kV common, AC mains B EN61000-4-5: 95
150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz
sine
0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
A EN61000-4-3: 96
A EN61000-4-6: 97
C
C
C
B
Reference
standard
ENV 50204: 95
EN61000-4-11: 94
Barracuda XT SATA Product Manual, Rev. D 19
Drive Specifications www.seagate.com
2.10 Warranty
To determine the warranty for a specific drive, use a web browser to access the following web page:
support.seagate.com/customer/warranty_validation.jsp
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
www.seagate.com
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.
Drive Specifications
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 www.seagate.com
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.
Barracuda XT SATA Product Manual, Rev. D 23
Configuring and Mounting the Drive www.seagate.com
S
For installations which require cables, you can connect the drive as illustrated in Figure 5.
Figure 5 Attaching SATA cabling
Signal connector
Power connector
ignal 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
www.seagate.com
Figure 6 Mounting dimensions (3000GB model)
Configuring and Mounting the Drive
Barracuda XT SATA Product Manual, Rev. D 25
Configuring and Mounting the Drive www.seagate.com
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
ATA Revision 2.6 specification. This specification can be downloaded from www.serialata.org.
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 Definition
S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A-
S4 Ground 2nd mate
Signal
Power
S5 B- Differential signal pair B from Phy
S6 B+
S7 Ground 2nd mate
Key and spacing separate signal and power segments
P1 V
33
3.3V power
Barracuda XT SATA Product Manual, Rev. D 27
SATA Interface www.seagate.com
Table 6 Serial ATA connector pin definitions (continued)
Segment Pin Function Definition
Notes
P2 V
P3 V
33
33
3.3V power
3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
P7 V
P8 V
P9 V
5
5
5
5V power, pre-charge, 2nd mate
5V power
5V power
P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate.
P13 V
P14 V
P15 V
12
12
12
12V power, pre-charge, 2nd mate
12V power
12V power
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.
28 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
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).
See “S.M.A.R.T. commands” on page 36 for details and subcommands used in the S.M.A.R.T. implementation.
Table 7 Supported ATA commands
Command name Command code (in hex)
Check Power Mode E5
H
Device Configuration Freeze Lock B1H / C1
Device Configuration Identify B1H / C2
Device Configuration Restore B1H / C0
Device Configuration Set B1H / C3
Device Reset 08
Download Microcode 92
Execute Device Diagnostics 90
Flush Cache E7
Flush Cache Extended EA
Format Track 50
Identify Device EC
Idle E3
Idle Immediate E1
Initialize Device Parameters 91
Read Buffer E4
Read DMA C8
Read DMA Extended 25
Read DMA Without Retries C9
Read Log Ext 2F
Read Multiple C4
Read Multiple Extended 29
Read Native Max Address F8
Read Native Max Address Extended 27
Read Sectors 20
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Read Sectors Extended 24
Read Sectors Without Retries 21
Read Verify Sectors 40
Read Verify Sectors Extended 42
Read Verify Sectors Without Retries 41
Barracuda XT SATA Product Manual, Rev. D 29
H
H
H
H
H
SATA Interface www.seagate.com
Table 7 Supported ATA commands (continued)
Command name Command code (in hex)
Recalibrate 10
Security Disable Password F6
Security Erase Prepare F3
Security Erase Unit F4
Security Freeze F5
Security Set Password F1
Security Unlock F2
Seek 70
Set Features EF
Set Max Address F9
H
H
H
H
H
H
H
H
H
H
Note: Individual Set Max Address
commands are identified by the
value placed in the Set Max Features register as defined to the right.
Set Max Address Extended 37
Set Multiple Mode C6
Sleep E6
H
H
H
S.M.A.R.T. Disable Operations B0H / D9
S.M.A.R.T. Enable/Disable Autosave B0H / D2
Address:
Password:
Lock:
Unlock:
Freeze Lock:
H
H
00
01
02
03
04
H
H
H
H
H
S.M.A.R.T. Enable Operations B0H / D8
S.M.A.R.T. Execute Offline B0H / D4
S.M.A.R.T. Read Attribute Thresholds B0H / D1
S.M.A.R.T. Read Data B0H / D0
S.M.A.R.T. Read Log Sector B0H / D5
S.M.A.R.T. Return Status B0H / DA
S.M.A.R.T. Save Attribute Values B0H / D3
S.M.A.R.T. Write Log Sector B0H / D6
Standby E2
Standby Immediate E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA FUA Extended 3D
Write DMA Without Retries CB
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
30 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
Table 7 Supported ATA commands (continued)
Command name Command code (in hex)
SATA Interface
Write Log Extended 3F
Write Multiple C5
Write Multiple Extended 39
Write Multiple FUA Extended CE
Write Sectors 30
Write Sectors Without Retries 31
Write Sectors Extended 34
Write Uncorrectable 45
H
H
H
H
H
H
H
H
4.3.1 Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following
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
0
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5A
H
1 Number of logical cylinders 16,383
2 ATA-reserved 0000
H
3 Number of logical heads 16
4 Retired 0000
5 Retired 0000
6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000
H
H
H
H
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
H
H
H
Firmware revision
23–26
(8 ASCII character string, padded with blanks to end of
x.xx
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
Barracuda XT SATA Product Manual, Rev. D 31
SATA Interface www.seagate.com
Word Description Value
48 Reserved 0000
49
Standard Standby timer, IORDY supported and may be disabled
2F00
50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0200
52 Retired 0200
53 Words 54–58, 64–70 and 88 are valid 0007
54 Number of current logical cylinders xxxx
55 Number of current logical heads xxxx
56 Number of current logical sectors per logical track xxxx
57–58 Current capacity in sectors xxxx
59
Number of sectors transferred during a Read Multiple
or Write Multiple command
xxxx
Total number of user-addressable LBA sectors available
(see Section 2.1 for related information)
*Note: The maximum value allowed in this field is:
60–61
0FFFFFFFh (268,435,455 sectors, 137Gb). Drives with
0FFFFFFFh*
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.
H
H
H
H
H
H
H
H
H
H
H
62 Retired 0000
63
64
65
Multiword DMA active and modes supported
(see note following this table)
Advanced PIO modes supported (modes 3 and 4 supported)
Minimum multiword DMA transfer cycle time per word (120
nsec)
xx07
0003
0078
Recommended multiword DMA transfer cycle time per
66
word
0078
(120 nsec)
67
Minimum PIO cycle time without IORDY flow control (240
nsec)
00F0
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74 ATA-reserved 0000
75 Queue depth 001F
76 Serial ATA capabilities xxxx
77 Reserved for future Serial ATA definition xxxx
78 Serial ATA features supported xxxx
H
H
H
H
H
H
H
H
H
H
H
H
79 Serial ATA features enabled xxxx
32 Barracuda XT SATA Product Manual, Rev. D
H
www.seagate.com
Word Description Value
SATA Interface
80 Major version number 003E
81 Minor version number 0028
82 Command sets supported 346B
83 Command sets supported 7F01
4163
(4163
binary)
84
Command sets support extension
(see note following this table)
85 Command sets enabled 34xx
86 Command sets enabled BE01
87 Command sets enable extension 4163
88
Ultra DMA support and current mode (see note following
this table)
xx7F
89 Security erase time 00DE
90 Enhanced security erase time 00DE
92 Master password revision code FFFE
93 Hardware reset value xxxx
H
H
H
H
See Word 108-111 note.
H
= 0100000101100011
H
H
H
H
H
H
H
H
H
95–99 ATA-reserved 0000
Total number of user-addressable LBA sectors available
100–103
(see Section 2.1 for related information). These words are
required for drives that support the 48-bit addressing fea-
ST33000651AS = 5,860,533,168
ST32000641AS = 3,907,029,168
ture. Maximum value: 0000FFFFFFFFFFFFh.
104–107 ATA-reserved 0000
108–111 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
Each drive will have a unique
value.August 2010
indicating 64-bit WWN support.
112–127 ATA-reserved 0000
128 Security status 0001
129–159 Seagate-reserved xxxx
160–254 ATA-reserved 0000
255 Integrity word xxA5
Note
Note
Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not
supported
See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
H
H
H
H
H
H
H
Barracuda XT SATA Product Manual, Rev. D 33
SATA Interface www.seagate.com
Description (if bit is set to 1)
Bit Word 63
0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 84
0 SMART error login is supported.
1 SMART self-test is supported.
2 Media serial number is supported.
3 Media Card Pass Through Command feature set is supported.
4 Streaming feature set is supported.
5 GPL feature set is supported.
6 WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.
7 WRITE DMA QUEUED FUA EXT command is supported.
8 64-bit World Wide Name is supported.
9-10 Obsolete.
11-12 Reserved for TLC.
13 IDLE IMMEDIATE command with IUNLOAD feature is supported.
14 Shall be set to 1.
15 Shall be cleared to 0.
Bit Word 88
0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
5 Ultra DMA mode 5 is supported.
6 Ultra DMA mode 6 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
34 Barracuda XT SATA Product Manual, Rev. D
www.seagate.com
SATA Interface
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
14 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
Set transfer mode (based on value in Sector Count register).
H
Sector Count register values:
00HSet PIO mode to default (PIO mode 2).
01HSet PIO mode to default and disable IORDY (PIO mode 2).
08HPIO mode 0
09HPIO mode 1
0AHPIO mode 2
0BHPIO mode 3
0CHPIO mode 4 (default)
20HMultiword DMA mode 0
21HMultiword DMA mode 1
22HMultiword DMA mode 2
40HUltra DMA mode 0
41HUltra DMA mode 1
42HUltra DMA mode 2
43HUltra DMA mode 3
44HUltra DMA mode 4
45HUltra DMA mode 5
46HUltra DMA mode 6
10
55
82
90
AA
Barracuda XT SATA Product Manual, Rev. D 35
Enable use of SATA features
H
Disable read look-ahead (read cache) feature.
H
Disable write cache
H
Disable use of SATA features
H
Enable read look-ahead (read cache) feature (default).
H
SATA Interface www.seagate.com
Table 8 Set Features command values (continued)
F1
Report full capacity available
H
Note
At power-on, or after a hardware or software reset, the default values of the features are as
indicated above.
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 D4H) that eliminates
unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.
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
H
S.M.A.R.T. Read Data
D2
D3
D4
D5
D6
D8
D9
DA
H
H
H
H
H
H
H
H
Note
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
If an appropriate code is not written to the Features Register, the command is aborted and 0x 04 (abort) is
written to the Error register.
36 Barracuda XT SATA Product Manual, Rev. D
Index
A
acceleration 18
acoustics 18
active mode 16
agency certification 20
altitude 17
ambient temperature 12, 17
areal density 12
ATA commands 29
Australia/New Zealand Standard AS/NZ CISPR22 20
Australian Communication Authority (ACA) 20
Australian C-Tick 20
B
buffer 12
C
cables and connectors 23
cache 12
capacity 11
case temperature 17
CE mark 20
certification 20
Check Power Mode 29
China RoHS directive 21
compatibility 20
conducted noise 14
conducted RF immunity 19
configuring and mounting the drive 23
connectors 23
corrosive environment 21
CSA60950-1 20
cylinders 11
D
data-transfer rates 9
DC power 12
default logical geometry 11
density 12
Device Configuration Freeze Lock 29
Device Configuration Identify 29
Device Configuration Restore 29
Device Configuration Set 29
Device Reset 29
dimensions 25, 26
dissipation 13
Download Microcode 29
E
electrical fast transient 19
Electromagnetic Compatibility (EMC) 20
Electromagnetic Compatibility control Regulation 20
Electromagnetic Compatibility Directive (2004/108/EC)
20
electromagnetic immunity 19
electrostatic discharge (ESD) 19, 23
EN 55022, Class B 20
EN 55024 20
EN60950 20
enclosures 20
environmental specifications 17
error-correction algorithms 9
ESD 23
EU RoHS directive 21
European Union (EU) requirements 20
Execute Device Diagnostics 29
F
FCC verification 20
features 9
Flush Cache 29
Flush Cache Extended 29
Format Track 29
formatted capacity 11
G
geometry 11
Gs (acceleration of gravity) 18
guaranteed sectors 11
H
handling precautions 23
heads 11
height 12
humidity 17
I
I/O data-transfer rate 12
Identify Device 29
Identify Device command 31
Idle 29
idle (DC power) 13
Idle Immediate 29
idle mode 13, 16
Information Technology Equipment (ITE) 20
Initialize Device Parameters 29
input noise ripple 16
input voltage 12
interface 12, 27
interference 20
internal data-transfer rate OD 12
ISO document 7779 18
K
Korean Communications Commission (KCC) 20
Korean Radio Research Laboratory (RRL) 20
L
LBA mode 11
length 12
logical geometry 11
M
master/slave 9
mounting 24
N
noise 16
nonoperating shock 18
nonoperating vibration 18
O
operating (DC power) 13
operating power 13
operating shock 18
operating vibration 18
Barracuda XT SATA Product Manual, Rev. D 37
P
perpendicular recording technology 9
physical characteristics 12
point-to-point 9, 23
power consumption 12
power dissipation 13
power management modes 16
power modes 16
power specifications 12
power-on to ready 12
precautions 23
printed circuit board 23
programmable power management 16
prominent discrete tone 19
Q
quick reference 10
R
Radiated RF immunity 19
radio and television interference 20
radio frequency (RF) 19
random seeks 13
Read Buffer 29
Read DMA 29
Read DMA Extended 29
Read DMA Without Retries 29
Read Log Ext 29
Read Multiple 29
Read Multiple Extended 29
Read Native Max Address 29
Read Native Max Address Extended 29
Read Sectors 29
Read Sectors Extended 29
Read Sectors Without Retries 29
Read Verify Sectors 29
Read Verify Sectors Extended 29
Read Verify Sectors Without Retries 29
read/write heads 11
read/write power 13
ready to spindle stop 12
Recalibrate 30
recording density 12
recording method 12
recording technology 12
relative humidity 17
reliability 20
RMS read/write current 16
RoHS 21
RRL 20
S
S.M.A.R.T. Disable Operations 30
S.M.A.R.T. Enable Operations 30
S.M.A.R.T. Enable/Disable Autosave 30
S.M.A.R.T. Execute Offline 30
S.M.A.R.T. implementation 29
S.M.A.R.T. Read Attribute Thresholds 30
S.M.A.R.T. Read Data 30
S.M.A.R.T. Read Log Sector 30
S.M.A.R.T. Return Status 30
S.M.A.R.T. Save Attribute Values 30
S.M.A.R.T. Write Log sector 30
safety certification 20
SATA ports 9
sectors 11
sectors per track 11
Security Disable Password 30
Security Erase Prepare 30
Security Erase Unit 30
Security Freeze 30
Security Set Password 30
Security Unlock 30
Seek 30
seek mode 12
seek time 12
Serial ATA (SATA) interface 27
servo electronics 13
Set Features 30
Set Max Address 30
Set Max Address Extended 30
Set Multiple Mode 30
shock 18
Sleep 30
sleep ( DC power) 13
sleep mode 16
sound 18
Specification summary table 10
spindle speed 12
spinup (DC power) 13
spinup power 12
Standby 30
standby (DC power) 13
Standby Immediate 30
standby mode 13, 16
standby timer 16
standby to ready 12
Start/stop times 12
static-discharge 23
subassembly 20
surge immunity 19
T
temperature 17
temperature gradient 17
timers (Idle and Standby) 16
track density 12
U
UL60950-1 20
V
vibration 18
voltage 12
voltage dips, interrupts 19
voltage tolerance 16
W
weight 12
wet bulb temperature 17
width 12
38 Barracuda XT SATA Product Manual, Rev. D
Write Buffer 30
Write DMA 30
Write DMA Extended 30
Write DMA FUA Extended 30
Write DMA Without Retries 30
Write Log Extended 31
Write Multiple 31
Write Multiple Extended 31
Write Multiple FUA Extended 31
Write Sectors 31
Write Sectors Extended 31
Write Sectors Without Retries 31
Write Uncorrectable 31
Barracuda XT SATA Product Manual, Rev. D 39
40 Barracuda XT SATA Product Manual, Rev. D
Seagate Technology LLC
AMERICAS Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550
ASIA/PACIFIC 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
Loading...