Publication number: 100818689, Rev. A June 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.
Actua l quanti ties will vary bas ed on var ious factors, including file size, file format, features and application software. Actual data rates may vary depending on operating environment and
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Seagate Archive HDD Product Manual, Rev. A 5
1.0Introduction
This manual describes the functional, mechanical and interface specifications for the following
Seagate® Archive HDD and model drives:
Archive HDD models
ST8000AS0003
These drives provide the following key features:
• 8TB capacity for efficient storage-per-slot.
• Affordable efficiencies with 2TB-per-disk Drive Managed SMR-based hard drive technology.
• Compliant with RoHS requirements in China and Europe.
• Engineered for 24x7 workloads of 180TB per year.
• Full-track multiple-sector transfer capability without local processor intervention.
• High capacity and energy efficiency for low TCO.
• Native Command Queuing with command ordering to increase performance in demanding applications.
•Quiet operation.
• SATA 6Gb/s interface for trusted drop-in system compatibility.
• Seagate brings over 30 years of trusted storage reliability to the growing need for online long-term storage.
• 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.
• Worldwide Name (WWN) capability uniquely identifies the drive.
Best-Fit Applications
[2]
•Big Data cold storage
•Cloud active archive
• Cost-effective online archiving
•Object storage
• Web-scale archiving
[2]
Archive HDD's are not intended for surveillance or NAS applications, and you may experience lower performance in these
environments. For these applications, Seagate Specialty Hard Drives are suggested for better performance and reliability.
Seagate Archive HDD Product Manual, Rev. A6
www.seagate.comIntroduction
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 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 www.sata-io.or
g.
Note
The host adapter may, optionally, emulate a master/slave environment to host software where two
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.
Seagate Archive HDD Product Manual, Rev. A7
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:
Archive HDD models
ST8000AS0003
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. .
Bytes per sector (emulated at 512-byte sectors)4096 (physical)
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density (max)2294 kB/in
Track density (avg)540 ktracks/in
Areal density (avg)1203 Gb/in
SATA interface transfer rate600 MB/s
Maximum data transfer rate190 MB/s
ATA data-transfer modes supported
Cache buffer256MB
Height (max)26.1mm / 1.028 in
Width (max)101.6mm (± 0.25) / 4.0 in (± 0.010)
Length (max)146.99mm / 5.787 in
Weight (typical)605g / 1.334 lb
Average latency6.0 ms
Power-on to ready (typ)15.0s
Standby to ready (typ)15.0s
Startup current (typical) 12V <2.0A
Voltage tolerance (including noise)
Non-Operating (Ambient °C)–40° to 70°
Operating ambient temperature (min °C)
Operating temperature (drive case max °C)60°
Temperature gradient
Relative humidity
Relative humidity gradient (max)30% per hour
#
30°C per hour max (non-operating)
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
5V ±5%
12V ±10%
20°C per hour max (operating)
5% to 90% (operating)
5% to 95% (non-operating)
2
0°
†
Seagate Archive HDD Product Manual, Rev. A8
www.seagate.comDrive Specifications
Table 1Drive specifications summary for 8TB model (continued)
Drive Specification*ST8000VX002
Wet bulb temperature (max)
Altitude, operating
Altitude, non-operating
(below mean sea level, max)
30°C max (operating)
40°C max (non-operating)
–304m to 3048m
(–1000 ft to 10,000 ft)
–304m to12,192m
(–1000 ft to 40,000+ ft)
Operational shock (max)70 Gs (read) /40 Gs (write) at 2ms
Non-operational shock (max)300 Gs at 2ms
10Hz to 22Hz: 0.25 Gs, Limited displacement
Vibration, operating
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
5Hz to 22Hz: 3.0 Gs
Vibration, non-operating
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle***
Seek
Non-recoverable read errors1 per 10
2.3 bels (typical) (2.0 measured)
2.5 bels (max) (2.1 max measured)
2.5 bels (typical) (2.3 measured0
2.6 bels (max) (2.4 max measured)
14
bits read
Average annualized workload rating: <180TB/year.
The specifications for the product assumes the I/O workload does not exceed
Rated workload
the average annualized workload rate limit of 180TB/year. Workloads
exceeding the annualized rate may degrade and impact reliability as
experienced by the particular application. The average annualized workload
rate limit is in units of TB per calendar year.
To determine the warranty for a specific drive, use a web browser to access the
following web page:
From this page, click on “Is my Drive under Warranty”. 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 cycles300,000 at 25°C, 50% rel. humidity
Supports hotplug operation per the
Serial ATA Revision 3.2 specification
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.
# The operating case temperature is 0 to 60°C (32 to 140°F).
The recommended measure location can be found in Section 3.4 Figure 3.
Note
If the drive is powered-off before issuing flush cache command, in some instances,
the end user data in the DRAM cache might not be committed to the disk.
Seagate Archive HDD Product Manual, Rev. A9
www.seagate.comDrive Specifications
2.2Formatted capacity
ModelFormatted capacity*Guaranteed sectors Bytes per sector
8TB8000GB15,628,053,168
*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.
4096
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
InterfaceSATA
Recording methodTGMR
Recording density (kBPI)2294
Track density (ktracks/inch avg)540
Areal density (Gb/in
2
)1203
Interface transfer rate (MB/s) 600
Data transfer rate (MB/s) up to 190
Seagate Archive HDD Product Manual, Rev. A10
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