Rev. A03/06/09Initial release.
Rev. B07/08/091, 5, 7, 16, 23 and 25-26.
Rev. C06/03/10Updated DC power requirements.
Rev. D01/05/11Added new 2TB model and updated specifications.
Publication number: 100562053, Rev. D January 2011
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC
in the United States and/or other countries. SV35 Series, 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 hard 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.
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
SV35 Series SATA Product Manual, Rev. D v
viSV35 Series SATA Product Manual, Rev. D
1.0Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
SV35 SeriesTM model drives:
ST2000VX002 ST31000526SVST31000525SV
ST3500411SVST3500410SVST3250311SV
These drives provide the following key features:
• Designed with low spin-up power for optimization in surveillance applications
• Uncompromising reliability supports flexible surveillance design, with case temperatures up to 70º C
• Performance-tuned for seamless video applications
• Built-in error recovery for non-stop video streaming
• Best-in-class acoustic performance means virtually silent operation
• Higher areal density for cost-effective surveillance applications
• Enterprise-class reliability for 24x7 video surveillance applications
• Supports ATA8 streaming commands
• Enhanced caching capabilities enable superior video recording quality.
• Unique user-selectable partitioning capability
• Easy-to-use Smart Command Transport (SCT) makes management simple
• Thermal monitoring and reporting for 24x7 operations
• High instantaneous (burst) data-transfer rates.
• Perpendicular recording heads and EPRML technology, for 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.
• Worldwide Name (WWN) capability uniquely identifies the drive.
SV35 Series SATA Product Manual, Rev. D1
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 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 International Organization: Serial ATA
Revision 3.0”. The specification can be downloaded from www.sata-io.org.
2SV35 Series SATA Product Manual, Rev. D
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 model:
ST2000VX002 ST31000526SVST31000525SV
ST3500411SVST3500410SVST3250311SV
2.1Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or
definition, see the appropriate section of this manual.
Table 1: Drive specifications summary for the 2TB model
Drive specificationST2000VX002
Formatted capacity (4K bytes/sector)*2TB
Guaranteed sectors3,907,029,168
Heads6
Disks3
Bytes per sector4096 (512 bytes per sector emulated at the interface)
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density(max)1632kb/in
Track density (avg)274 ktracks/in avg
Areal density (avg)422 Gb/in
Internal data transfer rate (max)1928 Mb/s max
Sustained data transfer rate (max)144 MB/s
I/O data-transfer rate (max)600 MB/s
ATA data-transfer modes supportedPIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer64MB
Height (max)26.11mm (1.028 in)
Width (max)101.6mm (4.0 in)
Length (max)147.00mm (5.78 in)
Weight (typical)635 grams (1.39 lb)
Power-on to ready (max)<17s
Track-to-track seek time<1ms typical read;
<1.2ms typical write
2
SV35 Series SATA Product Manual, Rev. D3
Table 1: Drive specifications summary for the 2TB model (continued)
Drive specificationST2000VX002
Average seek, read12ms
Average seek, write13ms
Startup current (typical) 12V (peak)2A
Voltage tolerance (including noise)5V: ± 5%
Operating temperature (Drive Case)0° to 70°C
Nonoperating temperature
(Drive Case)
Temperature gradient (max)20°C per hour max (operating)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature (max)37.7°C max (operating)
Altitude, operating–60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
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
* 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.
4SV35 Series SATA Product Manual, Rev. D
Table 2: Drive specifications summary for the 1TB models
Drive specificationST31000526SVST31000525SV
Formatted capacity (512 bytes/sector)*1TB1TB
Guaranteed sectors1,953,525,1681,953,525,168
Heads44
Disks22
Bytes per sector512512
Default sectors per track6363
Default read/write heads1616
Default cylinders16,38316,383
Recording density(max)1474 kb/in 1474 kb/in
Track density (avg)236 ktracks/in 236 ktracks/in
Areal density (avg)345 Gb/in
Internal data transfer rate (max)1628 Mb/s1628 Mb/s
Sustained data transfer rate (max)140 MB/s 140 MB/s
WarrantyTo 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.
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the
YesYes
Serial ATA Revision 3.0 specification
* One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
* *During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
Table 3: Drive specifications summary for 500GB and 250GB models