Product Manual
Barracuda ES.2 Serial ATA
ST31000340NS
ST3750330NS
ST3500320NS
ST3250310NS
100468393
Rev. A
August 2007
Revision history
Revision Date Sheets affected or comments
Rev. A 08/10/07 Initial release
Copyright © 2007 Seagate Technology LLC. All rights reserved. Printed in U.S.A.
Publication number: 100468393, Rev. A August 2007
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.
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity
may vary depending on operating environment and formatting. Seagate reserves the right to change, with
out notice, product offerings or specifications.
-
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.9 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 18
2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 20
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 20
2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Barracuda ES.2 Serial ATA Product Manual, Rev. A i
ii Barracuda ES.2 Serial ATA Product Manual, Rev. A
List of Figures
Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Barracuda ES.2 Serial ATA Product Manual, Rev. A iii
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda
ST31000340NS ST3750330NS ST3500320NS ST3250310NS
These drives provide the following key features:
• 7,200 RPM spindle speed.
• High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second).
• Perpendicular recording technology provides the drives with increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queueing with command ordering to increase performance in demanding applications.
• Full-track multiple-sector transfer capability without local processor intervention.
• Quiet operation.
• 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.
®
ES.2 Serial ATA model drives:
Barracuda ES.2 Serial ATA Product Manual, Rev. A 1
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 disc drive in your current
system and expect all of your existing applications to work as normal.
The Serial ATA interface connects each disc 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.
Note. 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.
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: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from www.serialata.org.
2 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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:
ST31000340NS ST3750330NS ST3500320NS ST3250310NS
2.1 Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 3
Table 1: Drive specifications summary for 1000 GB (1 Tbyte) and 750 GB models
Drive specification ST31000340NS ST3750330NS
Formatted Gbytes (512 bytes/sector)* 1000 750
Guaranteed sectors 1,953,525,168 1,465,149,168
Heads 8 6
Discs 4 3
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 1,090
Track density, KTPI (ktracks/in avg.) 150
Areal density, (Gbits/in2 avg) 164
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 1287
Sustained data transfer rate OD (Mbytes/sec max) 105
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 32 Mbytes
Height (mm max) 26.1 mm (1.028 inches)
Width (mm max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (mm max) 146.99 mm (5.787 inches)
Weight (max) 665 grams (1.466 lbs) 630 grams (1.389 lbs)
Average latency 4.16 msec
Power-on to ready (sec max) 20 sec
Standby to ready (sec max) 10 sec 9 sec
Track-to-track seek time (msec typical) 0.8 read; 1.0 write
Average seek, read (msec typical) 8.5
Average seek, write (msec typical) 9.5
Startup current (typical) 12V (peak) 2.8 amps
Voltage tolerance (including noise) 5V + 10% / -7.5%
Ambient temperature 5° to 55°C (operating)
Temperature gradient (°C per hour max) 20°C (operating)
Relative humidity 5% to 95% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 37.7 (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock (max at 2 msec) 70 Gs
Non-Operational Shock (max at 2 msec) 300 Gs
Multiword DMA modes 0–2
Ultra DMA modes 0–6
12V + 10% / -7.5%
–40° to 70°C (nonoperating)
30°C (nonoperating)
5% to 95% (nonoperating)
40.0 (nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
4 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Drive specification ST31000340NS ST3750330NS
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 2.0 Gs, Limited displacement
Drive acoustics, sound power (bels)
Active 3.25 (typical)
Idle** 2.7 (typical)
Performance seek 3.05 (typical)
Quiet seek 2.95 (typical)
Nonrecoverable read errors 1 sector per 10
Annualized Failure Rate (AFR) 0.73%
Warranty 5 years on distribution units.
Contact start-stop cycles
(25°C, 50% rel. humidity)
Supports Hotplug operation per
Serial ATA Revision 2.5 specification
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs
3.4 (max)
2.9 (max)
3.2 (max)
3.1 (max)
15
bits read
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.
50,000
Ye s
www.seagate.com/support/service/
*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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 5
Table 2: Drive specifications summary for 500 GB and 250 GB models
Drive specification ST3500320NS ST3250310NS
Formatted Gbytes (512 bytes/sector)* 500 250
Guaranteed sectors 976,773,168 488,397,168
Heads 4 2
Discs 2 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 1,090
Track density, KTPI (ktracks/in avg.) 150
Areal density, (Gbits/in2 avg) 164
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 1287
Sustained data transfer rate OD (Mbytes/sec max) 105
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4
Cache buffer 32 Mbytes
Height (mm max) 26.1 mm (1.028 inches)
Width (mm max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (mm max) 146.99 mm (5.787 inches)
Weight (max) 530 grams (1.168 lbs) 495 grams (1.091 lbs)
Average latency 4.16 msec
Power-on to ready (sec max) 20 sec
Standby to ready (sec max) 8 sec
Track-to-track seek time (msec typical) 0.8 read; 1.0 write
Average seek, read (msec typical) 8.5
Average seek, write (msec typical) 9.5
Startup current (typical) 12V (peak) 2.8 amps
Voltage tolerance (including noise) 5V + 10% / -7.5%
Ambient temperature 5° to 55°C (operating)
Temperature gradient (°C per hour max) 20°C (operating)
Relative humidity 5% to 95% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (°C max) 37.7 (operating)
Altitude, operating –60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Operational Shock (max at 2 msec) 70 Gs
Non-Operational Shock (max at 2 msec) 300 Gs
Multiword DMA modes 0–2
Ultra DMA modes 0–6
12V + 10% / -7.5%
–40° to 70°C (nonoperating)
30°C (nonoperating)
5% to 95% (nonoperating)
40.0 (nonoperating)
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
6 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Drive specification ST3500320NS ST3250310NS
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement
Vibration, nonoperating 5–22 Hz: 2.0 Gs, Limited displacement
Drive acoustics, sound power (bels)
Active 3.25 (typical)
Idle** 2.5 (typical)
Performance seek 2.85 (typical)
Quiet seek 2.75 (typical)
Nonrecoverable read errors 1 sector per 10
Annualized Failure Rate (AFR) 0.73%
Warranty 5 years on distribution units.
Contact start-stop cycles
(25°C, 50% rel. humidity)
Supports Hotplug operation per
Serial ATA Revision 2.5 specification
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs
3.4 (max)
2.7 (max)
3.0 (max)
2.9 (max)
15
bits read
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.
50,000
Ye s
www.seagate.com/support/service/
*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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 7
2.2 Formatted capacity
Model
ST31000340NS 1000 Gbytes 1,953,525,168
ST3750330NS 750 Gbytes 1,465,149,168
ST3500320NS 500 Gbytes 976,773,168
ST3250310NS 250 Gbytes 488,397,168
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
Formatted
capacity*
Guaranteed
sectors
Bytes per sector
512
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logical geometry
Cylinders Read/write heads Sectors per track
16,383 16 63
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
8 Barracuda ES.2 Serial ATA Product Manual, Rev. A
2.4 Recording and interface technology
1000GB 750GB 500GB 250GB
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (kbits/inch max) 1,090
Track density, KTPI (ktracks/inch avg) 150
Areal density (Gbits/inch2 avg) 164
Spindle speed (RPM) (± 0.2%) 7,200
Internal data transfer rate (Mbits/sec max) 1287
Sustained data transfer rate (Mbytes/sec max) 105
I/O data-transfer rate (Mbytes/sec max) 300 (Ultra DMA mode 5)
2.5 Physical characteristics
Maximum height 26.1 mm (1.028 inches)
Maximum width 101.6 mm (4.000 +/- 0.010 inches)
Maximum length 146.99 mm (5.787 inches)
Max weight
ST31000340NS 665 grams (1.466 lbs)
ST3750330NS 630 grams (1.389 lbs)
ST3500320NS 530 grams (1.168 lbs)
ST3250310NS 495 grams (1.091 lbs)
Cache buffer 32 Mbytes (16,384 kbytes)
Barracuda ES.2 Serial ATA Product Manual, Rev. A 9
2.6 Seek time
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using
drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all possible single-track seeks in both directions.
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.
*Typical seek times (msec) Read Write
Track-to-track 0.8 1.0
Average 8.5 9.5
Average latency: 4.16
*Measured in performance mode.
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical
seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted
values. However, due to the manner in which these drives are formatted, benchmark tests that
include command overhead or measure logical seeks may produce results that vary from these
specifications.
2.7 Start/stop times
ST31000340NS ST3750330NS ST3500320NS, ST3250310NS
Power-on to Ready (sec) 20 (max)
Standby to Ready (sec) 10 (max) 9 (max) 8 (max)
Ready to spindle stop (sec) 20 (max)
10 Barracuda ES.2 Serial ATA Product Manual, Rev. A
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 24.
2.8.1 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 disc surface and
does not execute a read or write operation. Servo electronics are active. Seek mode power represents the
worst-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-msec
delay, then a 16-sector read followed by a 32-msec 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 3: DC power requirements
Power dissipation (4-disc values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.80 (peak)
Idle* 7.96 0.320 0.530
Idle* (with offline activity) 9.29 0.610 0.520
Operating (40% r/w, 40% seek, 20% inop.) 11 .16 0.600 0.680
Seeking (random, 20% idle) 10.42 0.500 0.660
Standby 0.99 0.150 0.020
Sleep 0.99 0.150 0.020
*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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 11
2.8.1.1 Typical current profiles
Figure 1. Typical 5V startup and operation current profile
12 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Figure 2. Typical 12V startup and operation current profile
2.8.2 Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on
the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave
injected noise at up to 10 MHz.
• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave
injected noise at up to 10 MHz.
Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write
current.
2.8.3 Voltage tolerance
Voltage tolerance (including noise):
5V +10% / -7.5%
12V +10% / -7.5%
Barracuda ES.2 Serial ATA Product Manual, Rev. A 13
2.8.4 Power-management modes
The drive provides programmable power management to provide greater energy efficiency. In most systems,
you can control power management through the system setup program. The drive features the following
power-management modes:
Power modes 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 disc
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 disc 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 disc access is necessary.
14 Barracuda ES.2 Serial ATA Product Manual, Rev. A
2.9 Environmental specifications
2.9.1 Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed 60°C (140°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet
(3,048 meters).
Operating: 5° to 55°C (41° to 131°F)
Nonoperating: –40° to 70°C (–40° to 158°F)
2.9.2 Temperature gradient
Operating: 20°C per hour (68°F per hour max), without condensation
Nonoperating: 30°C per hour (86°F per hour max)
2.9.3 Humidity
2.9.3.1 Relative humidity
Operating: 5% to 95% noncondensing (30% per hour max)
Nonoperating: 5% to 95% noncondensing (30% per hour max)
2.9.3.2 Wet bulb temperature
Operating: 37.7°C (99.9°F max)
Nonoperating: 40.0°C (104.0°F max)
2.9.4 Altitude
Operating: –60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)
Nonoperating: –60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)
2.9.5 Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 70 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.
2.9.5.2 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 2 msec duration.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 15
2.9.6 Vibration
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.
2.9.6.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document are specified below.
5–22 Hz 0.25 Gs (Limited displacement)
22–350 Hz 0.50 Gs
350–500 Hz 0.25 Gs
2.9.6.2 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.
5–22 Hz 2.0 Gs (limited displacement)
22–350 Hz 5.0 Gs
350–500 Hz 2.0 Gs
16 Barracuda ES.2 Serial ATA Product Manual, Rev. A
2.10 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
Note. 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)
Table 4: Fluid Dynamic Bearing (FDB) motor acoustics
Active Idle* Performance seek Quiet Seek
ST31000340NS
ST3750330NS
ST3500320NS
ST3250310NS
*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.
3.25 bels (typ)
3.4 bels (max)
2.7 bels (typ)
2.9 bels (max)
2.5 bels (typ)
2.7 bels (max)
3.05 bels (typ)
3.2 bels (max)
2.85 bels (typ)
3.0 bels (max)
2.95 bels (typ)
3.1 bels (max)
2.75 bels (typ)
2.9 bels (max)
2.11 Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:
Table 5: Radio frequency environments
Test Description Performance level Reference standard
Electrostatic
discharge
Radiated RF
immunity
Electrical fast
transient
Surge immunity ± 1 kV differential, ± 2 kV common, AC mains B EN 61000-4-5: 95
Conducted RF
immunity
Voltage dips,
interrupts
Contact, HCP, VCP: ± 4
80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz
± 1 kV on AC mains, ± 0.5 kV on external I/O B EN 61000-4-4: 95
150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz sine A EN 61000-4-6: 97
0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
kV; Air: ± 8 kV B EN 61000-4-2: 95
A EN 61000-4-3: 96
C
C
C
B
ENV 50204: 95
EN 61000-4-11: 94
Barracuda ES.2 Serial ATA Product Manual, Rev. A 17
2.12 Reliability
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)
The product shall achieve an Annualized Failure Rate - AFR - of 0.73% (Mean Time Between Failures - MTBF
- of 1.2 Million hrs) when operated in an environment that ensures the HDA case temperatures do not exceed
°
50
C. Operation at case temperatures outside the specifications in Section 2.9 may increase the product Annu-
alized Failure Rate (decrease MTBF). AFR and MTBF are population statistics that are not relevant to individual units.
AFR and MTBF specifications are based on the following assumptions for business critical storage system
environments:
• 8,760 power-on-hours per year.
• 250 average motor start/stop cycles per year.
• Operations at nominal voltages.
• Systems will provide adequate cooling to ensure the case temperatures do not exceed 50°C. Temperatures
outside the specifications in
Nonrecoverable read errors 1 per 1015 bits read, max
Annualized Failure Rate (AFR) 0.73% (nominal power, 50°C case temperature)
Contact start-stop cycles 50,000 cycles
Section 2.9 will increase the product AFR and decrease MTBF.
(at nominal voltage and temperature, with 60 cycles per hour and a 50%
duty cycle)
Warranty 5 years on distribution units.
To determine the warranty for a specific drive, use a web browser to access
the following web page: www.seagate.com/support/service/
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.
Preventive maintenance None required.
2.13 Agency certification
2.13.1 Safety certification
The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections
of IEC950 and EN 60950 as tested by TUV North America.
2.13.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Electromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and
the immunity levels are defined by EN 55024.
Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous
paragraph. 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.
18 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Korean RRL
If these drives have the Korea Ministry of Information and Communication (MIC) 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) Ministry of Information
and Communication 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.
• Barracuda ES.2
• Certificate number: 1 TB- STX- ST31000340NS (B)
750 GB- STX- ST31000340NS (B)
500 GB- STX- ST3500320NS (B)
250 GB- STX- ST3500320NS (B)
Australian C-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication Authority (ACA).
2.13.3 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 Technology LLC has tested this device in enclosures as described above to ensure that the total
assembly (enclosure, disc 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.
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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 19
2.14 Environmental protection
Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances.
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive
Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances. A new law, 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.
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive
2.14.2
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following
table contains information mandated by China's "Marking Requirements for Control of Pollution
Caused by Electronic Information Products" Standard.
"O" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is lower
than the threshold defined by the China RoHS MCV Standard.
“
O"表示该部件（于同类物品程度上）所含的危险和有毒物质低于中国RoHS MCV标准所定义的门槛值。
"X" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is over
the threshold defined by the China RoHS MCV Standard.
中国限制危险物品的指令
“X "表示该部件（于同类物品程度上）所含的危险和有毒物质超出中国RoHS MCV标准所定义的门槛值。
2.15 Corrosive environment
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM
B845. However, this accelerated testing cannot duplicate every potential application environment. Users
should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive
chemicals as electronic drive component reliability can be affected by the installation environment. The silver,
copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or
20 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 21
22 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 23
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 SATAequipped motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation. If
you have a motherboard or host adapter that does not support autonegotiation:
• Install a jumper as shown in Figure 3 below to limit the data transfer rate to 1.5 Gbits per second (and leave
the drive connected to the SATA-equipped motherboard or host adapter that doesn’t support autonegotiation)
or
• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal
operation” (see Figure
the drive to a 1.5 Gbits/sec transfer rate.
3.0 Gbits per second operation
Limit data transfer rate to
1.5 Gbits per second
3 below), and connect the drive to that adapter. This option has the benefit of not limiting
Jumper block
SATA interface connector
Figure 3. Serial ATA connectors
SATA power connector
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.
For installations which require cables, you can connect the drive as illustrated in Figure 4.
Signal connector
Power connector
Signal cable
Power cable
Figure 4. Attaching SATA cabling
Each cable is keyed to ensure correct orientation. Barracuda ES.2 Serial ATA drives support latching SATA
connectors.
24 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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 5 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).
Recommended
case temperature
measurement location
.250 + .015
(6.35 + .381)
(3x both sides)
1.122
+ .020
(28.499
+ .508)
[1]
5.787 (146.9898) max.
1.638
(41.605)
[1]
[1]
4.000
(101.6)
[1]
4.000
(101.60)
.138
(3.505)
.814
2.00
(50.80)
(20.676)
CLof conn. Datum B
CLof drive
[1]
2 x 3.750
(2 x 95.25)
1.028 max
(26.111 max)
2 x 1.625
(2 x 41.28)
2 x 1.750
(2 x 44.45)
[1]
Notes:
Dimensions are shown in inches (mm).
[1] Dimensions per SFF-8301 specification
[1]
[1]
4.000
(101.6)
[1]
Recommended
case temperature
measurement location
Figure 5. Mounting dimensions—top, side and end view
Barracuda ES.2 Serial ATA Product Manual, Rev. A 25
26 Barracuda ES.2 Serial ATA Product Manual, Rev. A
4.0 Serial ATA (SATA) interface
These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.
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 ES.2 Serial ATA drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be downloaded
from www.serialata.org.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 27
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
S5 B- Differential signal pair B from Phy
S6 B+
Signal
S7 Ground 2nd mate
Key and spacing separate signal and power segments
P1 V
P2 V
P3 V
33
33
33
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
Power
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
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.
28 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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: High Speed Serialized AT Attachment specification. 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 98H or E5
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
H
H
H
H
H
H
H
Idle 97H or E3
Idle Immediate 95H or 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
Read Sectors Extended 24
Read Sectors Without Retries 21
Read Verify Sectors 40
Read Verify Sectors Extended 42
Read Verify Sectors Without Retries 41
Recalibrate 10
Security Disable Password F6
Security Erase Prepare F3
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Barracuda ES.2 Serial ATA Product Manual, Rev. A 29
Command name Command code (in hex)
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
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
H
H
Sleep 99H or E6
S.M.A.R.T. Disable Operations B0H / D9
S.M.A.R.T. Enable/Disable Autosave B0H / D2
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 96H or E2
Standby Immediate 94H or E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA FUA Extended CD
Write DMA Without Retries CB
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
H
H
H
H
H
H
H
H
H
H
H
H
Address:
Password:
Unlock:
Freeze Lock:
H
H
H
H
H
H
H
H
H
H
H
H
H
Lock:
00
01
02
03
04
H
H
H
H
H
30 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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 Table 7 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. See Section 2.0 on page 3 for default parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA
specification.
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
0C5A
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders 16,383
2 ATA-reserved 0000
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
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision (8 ASCII character string, padded with blanks to end
x.xx
of string)
27–46 Drive model number: (40 ASCII characters, padded with blanks to end
of string)
H
H
H
H
H
H
H
H
H
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple and Write
multiple (16)
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
8010
xxxx
H
H
H
H
H
H
H
H
H
H
H
H
Barracuda ES.2 Serial ATA Product Manual, Rev. A 31
Word Description Value
60–61 Total number of user-addressable LBA sectors available
0FFFFFFFh*
(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh
(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137
Gbytes will have 0FFFFFFFh in this field and the actual number of
user-addressable LBAs specified in words 100-103. This is required for
drives that support the 48-bit addressing feature.
62 Retired 0000
63 Multiword DMA active and modes supported (see note following this
xx07
table)
64 Advanced PIO modes supported (modes 3 and 4 supported) 0003
65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078
66 Recommended multiword DMA transfer cycle time per word (120 nsec) 0078
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 0000
76 Serial ATA capabilities xxxx
77 Reserved for future Serial ATA definition xxxx
78 Serial ATA features supported xxxx
79 Serial ATA features enabled xxxx
80 Major version number 003E
81 Minor version number 0000
82 Command sets supported 364B
83 Command sets supported 7C03
84 Command sets support extension 4003
85 Command sets enabled 30xx
86 Command sets enabled 0001
87 Command sets enable extension 4000
88 Ultra DMA support and current mode (see note following this table) xx3F
89 Security erase time 0000
90 Enhanced security erase time 0000
92 Master password revision code FFFE
93 Hardware reset value (see description following this table) xxxx
95–99 ATA-reserved 0000
100–
103
Total number of user-addressable LBA sectors available (see Section
2.2 for related information). These words are required for drives that
support the 48-bit addressing feature. Maximum value:
0000FFFFFFFFFFFFh.
1000 GB models = 1,953,525,168
750 GB models = 1,465,149,168
500 GB models = 976,773,168
250 GB models = 488,397,168
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
104–
127
128 Security status 0001
ATA-reserved 0000
H
H
32 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Word Description Value
129–
Seagate-reserved xxxx
159
160–
ATA-reserved 0000
254
255 Integrity word xxA5
H
H
H
Barracuda ES.2 Serial ATA Product Manual, Rev. A 33
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data.
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 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.
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.
34 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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
10
55
82
90
AA
F1
Enable write cache (default).
H
Set transfer mode (based on value in Sector Count register).
H
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
08HPIO mode 0
09HPIO mode 1
0A
PIO mode 2
H
0BHPIO mode 3
0CHPIO mode 4 (default)
20
Multiword DMA mode 0
H
21HMultiword DMA mode 1
22HMultiword DMA mode 2
40
Ultra DMA mode 0
H
41HUltra DMA mode 1
42HUltra DMA mode 2
43
Ultra DMA mode 3
H
44HUltra DMA mode 4
45HUltra DMA mode 5
46
Ultra DMA mode 6
H
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
Report full capacity available
H
Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-
cated above.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 35
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disc 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 elimi-
H
nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.sea
gate.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
D2
D3
D4
D5
D6
D8
D9
DA
H
H
H
H
H
H
H
H
H
S.M.A.R.T. Read Data
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
Note. 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 ES.2 Serial ATA Product Manual, Rev. A
5.0 Seagate Technology support services
Online services
Internet
For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is
available 24 hours daily by email for your questions.
Presales Support:
Presales@Seagate.com
Technical Support:
DiscSupport@Seagate.com
Warranty Support:
http://www.sea
mySeagate
my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides
self-service access to critical applications, personalized content and the tools that allow our partners to
manage their Seagate account functions. Submit pricing requests, orders and returns through a single,
password-protected Web interface-anytime, anywhere in the world.
gate.com/support/service/index.html
spp.seagate.com
spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You
may register for customized communications that are not available on the web. These communications contain
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the
benefits or to register, go to spp.seagate.com, any time, from anywhere in the world.
Seagate Service Centers
Presales Support
Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system, as well as product availability and compatibility.
Technical Support
Seagate technical support is available to assist you online at support.seagate.com or through one of our call
centers. Have your system configuration information and your “ST” model number available.
SeaTDD™ (+1-405-324-3655) is a telecommunications device for the deaf (TDD). You can send questions or
comments 24 hours daily and exchange messages with a technical support specialist during normal business
hours for the call center in your region.
Barracuda ES.2 Serial ATA Product Manual, Rev. A 37
Customer Service Operations
Warranty Service
Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct
customers should contact their Seagate Customer Service Operations (CSO) representative for warrantyrelated issues. Resellers or end users of drive products should contact their place of purchase or Seagate
warranty service for assistance. Have your serial number and model or part number available.
Data Recovery Services
Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery
services labs are currently located throughout the world. . Additional information, including an online request
form and data loss prevention resources, is available at http://services.sea
gate.com/index.aspx
Authorized Service Centers
Seagate Service Centers are available on a global basis for the return of defective products. Contact your
customer support representative for the location nearest you.
USA/Canada/Latin America support services
For an extensive list of telephone numbers to technical support, presales and warranty service in USA/
Canada/Latin America, including business hours, go to the "Contact Us" page on www.sea
gate.com.
Global Customer Support
Presales, Technical, and Warranty Support
Call Center Toll-free Direct dial
USA, Canada,
and Mexico 1-800-SEAGATE +1-405-324-4700
Data Recovery Services
Call Center Toll-free Direct dial FAX
USA, Canada, 1-800-475-01435 +1-905-474-2162 1-800-475-0158
and Mexico +1-905-474-2459
Europe, the Middle East and Africa Support Services
For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the
Middle East and Africa, go to the "Contact Us" page on www.sea
gate.com.
Asia/Pacific Support Services
For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,
go to the "Contact Us" page on www.sea
gate.com.
38 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Publication feedback survey
We are interested in your comments and suggestions regarding this publication. Please take a few minutes to
participate in our survey at the following URL:
http://survey.sea
Thank you for your time and comments.
gate.com/survey/techpubs.nsf
Barracuda ES.2 Serial ATA Product Manual, Rev. A 39
40 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Index
A
ACA 19
acceleration 16
acoustics 17
Active 14
Active mode 14
actuator arm 11
Agency certification 18
altitude 15
Ambient temperature 15
ambient temperature 10, 11
Annualized Failure Rate (AFR) 18
areal density 1, 9
ATA commands 29
Australia/New Zealand Standard AS/NZS3548 1995
19
Australian Communication Authority (ACA) 19
Australian C-Tick 19
Average latency 10
Average seek time 10
B
BPI 9
buffer 9
C
cables and connectors 24
cache 9
capacity 8
case temperature 15
CE mark 18
certification 18
Check Power Mode 29
China RoHS directive 20
Class B computing device 19
compatibility 18
Conducted noise 13
Conducted RF immunity 17
Configuring the drive 23
connectors 24
Corrosive environment 20
CSA C22.2 (950) 18
cycles 18
Cylinders 8
D
data-transfer rates 1
DC power 11
Default logical geometry 8
density 9
Device Configuration Freeze Lock 29
Device Configuration Identify 29
Device Configuration Restore 29
Device Configuration Set 29
Device Reset 29
dimensions 25
disc surface 11
dissipation 11
Download Microcode 29
E
Electrical fast transient 17
Electromagnetic compatibility 18
Electromagnetic Compatibility (EMC) 19
Electromagnetic Compatibility control Regulation 19
Electromagnetic Compatibility Directive (89/336/EEC)
18
Electromagnetic immunity 17
Electrostatic discharge 17
electrostatic discharge (ESD) 23
EN 55022, Class B 18
EN 55024 18
EN 60950 18
Environmental specifications 15
error-correction algorithms 1
errors 18
ESD 23
EU 18
EU RoHS directive 20
European Union (EU) requirements 18
Execute Device Diagnostics 29
F
FCC verification 19
features 1
Federal Communications Commission 19
Flush Cache 29
Flush Cache Extended 29
Format Track 29
Formatted capacity 8
G
geometry 8
Gs 16
guaranteed sectors 8
H
Handling precautions 23
heads 8
height 9
humidity 15
Barracuda ES.2 Serial ATA Product Manual, Rev. A 41
I
I/O data-transfer rate 9
Identify Device 29
Identify Device command 31
Idle 14, 29
Idle Immediate 29
Idle mode 11, 14
IEC950 18
Information Technology Equipment (ITE) 18
Initialize Device Parameters 29
Input noise ripple 13
input voltage 11
interface 9, 27
internal data-transfer rate OD 9
is 10
ISO document 7779 17
ITE 18
P
Physical characteristics 9
point-to-point 2, 24
Power consumption 11
power consumption 11
power dissipation 11
Power modes 14
Power specifications 11
Power-management modes 14
Power-on to Ready 10
precautions 23
printed circuit board 23
programmable power management 14
Q
quick reference 3
K
Korea Ministry of Information and Communication
(MIC)
19
Korean RRL 19
L
latency 10
latency time 11
LBA mode 8
length 9
logical geometry 8
M
maintenance 18
master/slave 2
maximum temperature 15
MIC 19
mounting 25
mounting screws 15
mounting the drive 23
N
noise 13
nominal power 10
Nonoperating shock 15
Nonoperating vibration 16
Nonrecoverable read errors 18
O
operating 11
Operating power 11
Operating shock 15
Operating vibration 16
R
Radiated RF immunity 17
Radio and television interference 19
radio frequency (RF) 17
random seeks 11
Read Buffer 29
Read DMA 29
Read DMA Extended 29
Read DMA without Retries 29
read errors 18
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 actuator arm 11
Read/write heads 8
Read/write power 11
Recalibrate 29
recording density 9
recording method 9
Recording technology 9
relative humidity 15
Reliability 18
RF 17
RMS read/write current 13
RoHS 20
RRL 19
42 Barracuda ES.2 Serial ATA Product Manual, Rev. A
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 18
SATA 27
screws 15
sectors 8
Sectors per track 8
Security Disable Password 29
Security Erase Prepare 29
Security Erase Unit 30
Security Freeze 30
Security Set Password 30
Security Unlock 30
Seek 30
seek mode 11
Seek mode power 11
Seek time 10
Seeking 11
Serial ATA (SATA) interface 27
serial ATA ports 2
Servo electronics 11
servo electronics 11
Set Features 30
Set Max Address 30
Set Max Address Extended 30
Set Multiple Mode 30
Shock 15
single-track seeks 10
Sleep 11, 14, 30
Sleep mode 14
sound 17
Specification summary table 3
spindle speed 9
Spinup 11
Spinup power 11
Standby 11, 14, 30
Standby Immediate 30
Standby mode 11, 14
standby timer 14
Standby to Ready 10
Start/stop times 10
start-stop cycles 18
static-discharge 23
support services 37
Surge immunity 17
T
technical support services 37
temperature 10, 15
temperature gradient 15
timer 14
timers 14
track density 9
Track-to-track 10
Track-to-track seek time 10
TUV North America 18
U
UL 1950 18
V
Vibration 16
voltage 11
Voltage dips, interrupts 17
Voltage tolerance 13
W
weight 9
wet bulb temperature 15
width 9
Write Buffer 30
Write DMA 30
Write DMA Extended 30
Write DMA FUA Extended 30
Write DMA Without Retries 30
Write Log Extended 30
Write Multiple 30
Write Multiple Extended 30
Write Multiple FUA Extended 30
Write Sectors 30
Write Sectors Extended 30
Write Sectors Without Retries 30
Barracuda ES.2 Serial ATA Product Manual, Rev. A 43
44 Barracuda ES.2 Serial ATA Product Manual, Rev. A
Seagate Technology LLC
920 Disc Drive, Scotts Valley, California 95066-4544, USA
Publication Number: 100468393, Rev. A, Printed in U.S.A.
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