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 othe r trademarks or register ed trademarks are the pro perty of their respective
owners.
When referring to hard drive c
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 th
functions, and thus will not be available for data storage. Seagate reserves the right to change, without
notice, product offerings or specifications
apacity, one gigabyte, or GB , equals one billion bytes and one terabyte, or
gistered trademarks of Seagate Technology LLC
e listed capacity is used for formatting and other
Barracuda 7200.12 Serial ATA Product Manual, Rev. E i
Barracuda 7200.12 Serial ATA Product Manual, Rev. E iii
1.0Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda
ST31000528ASST3500418ASST3320418ASST3160318AS
ST3
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 dr
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queueing with command ordering to incr
• Full-track multiple-sector trans
• Quiet operation.
• Compliant with RoHS requirements in China and Europe.
• SeaTools diagnostic software performs a drive self-
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
• Worldwide Name (WWN) capability uniquely
®
7200.12 Serial ATA model drives:
750528ASST3500410ASST3250318AS
ives with increased areal density.
ease performance in demanding applications.
fer capability without local processor intervention.
test that eliminates unnecessary drive returns.
identifies the drive.
Barracuda 7200.12 Serial ATA Product Manual, Rev. E 1
1.1About 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 performanc
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial
A
TA 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.
e levels.
Note.Th
The Serial ATA host adapter and drive share the function o
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 content s 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 2.6”. The specification can be downloaded from www.sata-io.org.
e 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.
f emulating parallel ATA device behavior to provide
2Barracuda 7200.12 Serial ATA Product Manual, Re v. E
2.0Drive 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:
Drive acoustics, sound power
Idle**2.6 bels (typical)
Seek2.8 bels (typical)
Nonrecoverable read errors1 per 10
Annualized Failure Rate (AFR)0.32%
WarrantyTo determine the warranty for a specific drive, use a web browser to access the following
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
ial ATA Revision 2.5 specification
Ser
*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 a
power to operational levels.
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs
2.7 bels (max)
3.0 bels (max)
14
bits read
web p
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
ctivity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
Drive acoustics, sound power
Idle**2.6 bels (typical)
Seek2.8 bels (typical)
Nonrecoverable read errors1 per 10
Annualized Failure Rate (AFR)0.32%
WarrantyTo determine the warranty for a specific drive, use a web browser to access the following
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
ial ATA Revision 2.5 specification
Ser
*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 a
power to operational levels.
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs
2.7 bels (max)
3.0 bels (max)
14
bits read
web p
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
ctivity may occur according to the S.M.A.R.T. specification, which may increase acoustic and