Publication number: 100759604, Rev. C February 2015
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United
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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. Actual quantities will vary based on various factors, including file size, file format, features and application
software. Actual data rates may vary depending on operating environment and other factors. The export or re-export of
hardware or software containing encryption may be regulated by the U.S. Department of Commerce, Bureau of Industry
and Security (for more information, visit www.bis.doc.gov), and controlled for import and use outside of the U.S. Seagate
reserves the right to change, without notice, product offerings or specifications.
• Transient power on management - <=2A spin-up current across Seagate SV35/Suveillance +SRS HDD
• Rotational Vibration - mitigation of system level rotational vibration inside Seagate SV35/Suveillance +SRS
HDD
ST3000VX004
(SV35)
ST2000VX004
(SV35)
ST1000VX002
(SV35)
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C 5
Introduction
1.1About the SATA interface
The Serial ATA (SATA) 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, SATA makes the transition from parallel ATA easy by providing legacy software support. SATA was
designed to allow users to install a SATA host adapter and SATA disk drive in the current system and expect all of
the existing applications to work as normal.
The SATA interface connects each disk drive in a point-to-point configuration with the SATA host adapter. There is
no master/slave relationship with SATA devices like there is with parallel ATA. If two drives are attached on one
SATA 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
Note
The SATA 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 SATA host adapter contains a set of registers that shadow the contents of the traditional device registers,
referred to as the Shadow Register Block. All SATA devices behave like Device 0 devices. For additional
information about how SATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial ATA
Revision 3.0.” The specification can be downloaded from
devices on separate SATA 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 SATA environment.
www.sata-io.org.
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C 6
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:
ST4000VX002
(Surveillance)
ST3000VX004
(SV35)
ST2000VX004
(SV35)
ST1000VX002
(SV35)
2.1Specification summary tables
The specifications listed in Table 1 are for quick reference. For details on specification measurement or definition,
refer to the appropriate section of this manual.
following web page:
From this page, click on the "Check to see if the drive is under Warranty" link. Users
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 the drive.
Load/Unload cycles
(25°C, 50% rel. humidity)
Supports Hotplug operation per the
Serial ATA Revision 3.0 specification
300,000
Ye s
2.2 bels
(typical)
2.3 bels (max)
2.3 bels
(typical)
2.4 bels (max)
*One GB equals one billion bytes and 1TB equals one trillion 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.
*** All specifications above are based on native configurations.
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C 8
Drive Specifications
2.2Formatted capacity
ModelFormatted capacity*Guaranteed sectors Bytes per sector
ST4000VX0024000GB7,814,037,168
ST3000VX0043000GB5,860,533,168
4K
ST2000VX0042000GB3,907,029,168
ST1000VX0021000GB1,953,525,168
*One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending
on operating environment and formatting.
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 48-bit
addressing support of drives with capacities over 137GB.
2.3Default logical geometry
• Cylinders: 16,383
• Read/write heads: 16
• Sectors per track: 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.
2.4Recording and interface technology
4-disk models3 & 1-disk models
InterfaceSATA
Recording methodTGMR
Recording density (kFCI)1807
Track density (ktracks/inch avg)340352
Areal density (Gb/in2 avg)625
Internal data transfer rate (Mb/s max)18132147
Maximum sustained data transfer rate, OD read (MB/s)180210
Average data rate, read/write (MB/s)146156
I/O data-transfer rate (MB/s max)600
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C 9
Drive Specifications
2.5Manufacturer Physical characteristics
Maximum height(4TB, 3TB & 2TB models)26.10mm / 1.028 in
(1TB model)20.20mm / 0.795 in
Maximum width101.6mm / 4.0 in (± 0.010 in)
Maximum length146.99mm / 5.787 in
Typical weight
ST4000VX002610g / 1.345 lb
ST3000VX004 & ST2000VX004626g / 1.38 lb
ST1000VX002415g / 0.915 lb
Cache buffer64MB (64,768kb)
2.6Seek 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 5000 measurements of seeks between
random tracks, less overhead.
Typical seek times (ms)Read Write
Track-to-track1.01.2
Average8.59.5
Average latency4.16
These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,
Note
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.
2.7Start/stop times
4-disk models3-disk models1-disk models
Power-on to ready
(in seconds)
Standby to ready
(in seconds)
Ready to spindle stop
(in seconds)
Time-to-ready may be longer than normal if the drive power is removed without going through normal OS
powerdown procedures.
15 (typical)
17 (max)
15 (typical)
17 (max)
8.5 (typical)
10 (max)
8.5 (typical)
10 (max)
10 (typical)
11 (max)
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C 10
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