Publication number: 100818527, Rev. A August 2017
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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
Seagate IronWolf Serial ATA Product Manual, Rev. A 3
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Seagate IronWolf Serial ATA Product Manual, Rev. A 4
1.0Introduction
This manual describes the functional, mechanical and interface specifications for the following:
Seagate® IronWolf™ Serial ATA model drives:.
Standard 512E models
ST12000VN0007
These drives provide the following key features:
• 256 MB data buffer.
• 7200 RPM spindle speed.
• Full-track multiple-sector transfer capability without local processor intervention.
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• Native Command Queuing with command ordering to increase performance in demanding applications.
• Perpendicular recording technology provides the drives with increased areal density.
• PowerChoice™ for selectable power savings
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
• Top Cover Attached motor for excellent vibration tolerance
• Worldwide Name (WWN) capability uniquely identifies the drive.
Note
Seagate recommends validating the configuration with the selected HBA/RAID
controller manufacturer to ensure use of full capacity is supported.
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 users to install a Serial ATA host adapter and Serial ATA disk drive in the current system and expect all of the existing
applications to work as normal.
The Serial ATA interface connects each disk drive in a point-to-point configuration with the Serial ATA host adapter. There is no
master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives are attached on one Serial ATA host
adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially
means both drives behave as if they are Device 0 (master) devices.
The host adapter may, optionally, emulate a master/slave environment to host software where two devices on
Note
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward
compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers, resets,
and interrupts are all emulated.
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 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.or
g.
Seagate IronWolf Serial ATA Product Manual, Rev. A 5
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 drive models.
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
Drive specification*ST12000VN0007
Formatted (512 bytes/sector)**12TB
Guaranteed sectors(see Section 2.2)
Bytes per logical sector512
Bytes per physical sector4096
Recording density, KBPI (Kb/in max)2283
Track density, KTPI (ktracks/in avg.)392
Areal density, (Gb/in2 avg)923
Spindle speed (RPM)7200
Internal data transfer rate (Mb/s max)2685
Max sustained transfer rate, OD read (MB/s)250
I/O data-transfer rate (MB/s max)600
PIO modes 0–4
ATA data-transfer modes supported
Cache buffer256MB
Weight: (maximum)705g (1.554 lb)
Average latency4.16ms
Power-on to ready (sec) (typ/max)20/30
Standby to ready (sec) (typ/max)20/30
Startup current (typical) 12V (peak)1.8A
Voltage tolerance (including noise)
Non-Operating (Ambient °C)–40° to 70°
Operating ambient temperature (min °C)5°
Operating temperature (drive case max °C)70°
Temperature gradient (°C per hour max)
Relative humidity
Relative humidity gradient30% per hour max
Multiword DMA modes 0–2
Ultra DMA modes 0–6
5V ±5%
12V ±10%
†
20°C (operating)
30°C (non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
Seagate IronWolf Serial ATA Product Manual, Rev. A 6
Drive specification*ST12000VN0007
Altitude, operating
Altitude, non-operating
(below mean sea level, max)
Annualized Failure Rate (AFR)0.63% based on 8760 POH
Maximum rate of 180TB/year.
Rated Workload
Warranty
Load-unload cycles 600,000
Supports Hotplug operation per
Serial ATA Revision 3.2 specification
Workloads exceeding the annualized rate may degrade the drive MTBF and impact product reliability. The Annualized Workload Rate is in units of TB per year, or TB per 8760 power on hours.
Workload Rate = TB transferred * (8760 / recorded power on hours).
To determine the warranty for a specific drive, use a web browser to access the following web
page: http://www.seagate.com/support/warranty-and-replacements/.
From this page, click on the “Is my Drive under Warranty” link. The following are required to be
provided: the drive serial number, model number (or part number) and country of purchase.The
system will display the warranty information for the drive.
5–22 Hz: 0.25 Gs, Limited displacement
–304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
2.8 (typical)
3.0 (max)
3.2 (typical)
3.4 (max)
15
bits read
Yes
*All specifications above are based on native configurations.
**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.
†Seagate does not recommend operating at sustained case temperatures above 60°C.
Operating at higher temperatures will reduce useful life of the product.
Seagate IronWolf Serial ATA Product Manual, Rev. A 7
2.2Formatted capacity
ST modelsFormatted capacity*Guaranteed sectorsBytes per logical sector
ST12000VN000712TB23,437,770,752512
* One GB equals one billion bytes when referring to hard drive capacity.
Accessible capacity may vary depending on operating environment and formatting..
Note
LBA Counts for drive capacities greater than 8TB are calculated based upon
the SFF-8447 standard publication. ftp://ftp.seagate.com/sff/SFF-8447.PDF
2.2.1LBA 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.
Seagate IronWolf Serial ATA Product Manual, Rev. A 8
2.5Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 20.
2.5.1Power consumption
Power requirements for the drives are listed in Table 2. 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.
Table 2DC power requirements (ST12000VN0007)
6.0Gb mode
Voltage+5V+12VWatts
Regulation± 5%± 10%Total
Avg Idle Current *0.2680.2914.83
Advanced Idle Current *
Idle_A0.2680.294.82
Idle_B0.1750.1853.1
Idle_C0.1750.1242.36
Standby0.1670.000.84
Maximum Start Current
DC (peak DC)0.7841.71
AC (Peak DC)0.8322.56
Operating current (random read 4K16Q):
Typical DC0.3280.6249.13
Maximum DC0.3330.6329.25
Maximum DC (peak)1.1142.233
Operating current (random write 4K16Q)
Typical DC0.3380.4557.15
Maximum DC0.3430.4687.32
Maximum DC (peak)0.811.937
Operating current (sequential read 64K16Q)
Typical DC0.8060.3177.84
Maximum DC0.8370.3258.09
Maximum DC (peak)1.0581.824
Operating current (sequential write 64K16Q)
Typical DC0.7460.3177.53
Maximum DC0.7550.3247.66
Maximum DC (peak)0.9050.698
* 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
Seagate IronWolf Serial ATA Product Manual, Rev. A 9
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