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Barracuda Green SATA Product Manual, Rev. D 7
8 Barracuda Green SATA Product Manual, Rev. D
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda® Green SATA model drives:
ST2000DL003ST1500DL003
These drives provide the following key features:
• 5900 RPM spindle speed
• Seagate® SmartAlign™ technology manages read-modify-write conditions dynamically in the drive without
host computer intervention, allowing a 4K drive to behave like a legacy 512-byte sector drive without the
necessity of a hardware utility.
• High instantaneous (burst) data-transfer rates (up to 600MB per second)
• Perpendicular recording, Tunneling Magnetoresistive (TMR) 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
• Compliant with RoHS requirements in China and Europe
• 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.
®
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 disk drive in your current system
and expect all of your existing applications to work as normal.
Barracuda Green SATA Product Manual, Rev. D9
Introductionwww.seagate.com
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
Note
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.
10 Barracuda Green SATA Product Manual, Rev. D
2.0 Drive 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:
ST2000DL003ST1500DL003
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 manuals.
Table 1 Drive specifications summary for 2000GB and 1500GB Models
Drive specificationST2000DL003ST1500DL003
Formatted capacity (4096 bytes/
sector)*
Guaranteed sectors3,907,029,1682,930,277,168
Heads66
Disks33
Bytes per sector40964096
Default sectors per track6363
Default read/write heads1616
Default cylinders16,38316,383
Recording density (max)1632kb/in 1632kb/in
Track density (avg)274 ktracks/in 274 ktracks/in
Areal density (avg)422Gb/in
Spindle speed5900 RPM5900 RPM
Internal data transfer rate (max)1928Mb/s 1928Mb/s
Sustained data transfer rate OD144MB/s 144MB/s
I/O data-transfer rate600MB/s600MB/s
2000GB1500GB
2
422Gb/in
2
ATA data-transfer modes supported
Cache buffer64MB64MB
Height (max)26.1mm / 1.028 in 26.1mm / 1.028 in
Barracuda Green SATA Product Manual, Rev. D11
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes: 0 to 6
Drive Specificationswww.seagate.com
Table 1 Drive specifications summary for 2000GB and 1500GB Models (Continued)
Drive specificationST2000DL003ST1500DL003
Width (max)101.85mm / 4.0 in
(
± 0.010 in)
101.85mm / 4.0 in
(± 0.010 in)
Length (max)147.00mm / 5.78 in147.00mm / 5.78 in
Weight (typical)635g / 1.39 lb635g / 1.39 lb
Average latency5.08ms5.08ms
Power-on to ready (max)<17s<17s
Standby to ready (max)<17s<17s
Track-to-track seek time (typical)<1.0ms read;
<1.2ms write
Average seek (typical)<12ms read;
<13ms write
<1.0ms read;
<1.2ms write
<12ms read;
<13ms write
Startup current (typical) 12V (peak)2.1A2.1A
Voltage tolerance
(including noise)
Ambient temperature0° to 60°C (operating)
Temperature gradient (max)20°C per hour (operating)
5V ±5%
12V ±10%
–40° to 70°C (nonoperating)
30°C per hour (nonoperating)
5V ±5%
12V ±10%
0° to 60°C (operating)
–40° to 70°C (nonoperating)
20°C per hour (operating)
30°C per hour (nonoperating)
Relative humidity5% to 90% (operating)
5% to 95% (nonoperating)
5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (max)30% per hour 30% per hour
Wet bulb temperature (max)37.7°C (operating)
40.0°C (nonoperating)
Altitude, operating–304.8m to 3,048m
(–1000 ft. to 10,000+ ft.)
Altitude, nonoperating
(below mean sea level, max)
–304.8m to 12,192m
(–1000 ft. to 40,000+ ft.)
37.7°C (operating)
40.0°C (nonoperating)
–304.8m to 3,048m
(–1000 ft. to 10,000+ ft.)
–304.8m to 12,192m
(–1000 ft. to 40,000+ ft.)
Operational Shock (max)80 Gs at 2ms80 Gs at 2ms
Non-Operational Shock (max)300 Gs at 2ms300 Gs at 2ms
Table 1 Drive specifications summary for 2000GB and 1500GB Models (Continued)
Drive Specifications
Drive specificationST2000DL003ST1500DL003
Nonrecoverable read errors1 per 10
14
bits read1 per 10
14
bits read
Annualized Failure Rate (AFR)0.34%0.34%
WarrantyTo determine the warranty for a specific drive, use a web browser to
access the following web page: support.seagate.com/customer/
warranty_validation.jsp
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.
Load/Unload cycles300K at 25°C, 50% rel. humidity
Supports Hotplug operation per
Yes
the 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.
2.2Formatted capacity
Model
Formatted
capacity*
ST2000DL0032000GB3,907,029,1684096
ST1500DL0031500GB2,930,277,1684096
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on
operating environment and formatting.
Guaranteed
sectors
Bytes per sector
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 isthe 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 137GBs.
2.3Default logical geometry
CylindersRead/write headsSectors per track
16,3831663
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where
n isthe number of guaranteed sectors as defined above.
Barracuda Green SATA Product Manual, Rev. D13
Drive Specificationswww.seagate.com
2.4Recording and interface technology
InterfaceSerial ATA (SATA)
Recording methodPerpendicular
Recording density (max)1632kb/in
Track density (avg)274 ktracks/in
Areal density (avg)422Gb/in
2
Spindle speed (RPM)5900
Internal data transfer rate (max)1928Mb/s
Sustained data transfer rate (max)144MB/s
I/O data-transfer rate (max)600MB/s
2.5Physical characteristics
Maximum height
2000GB and 1500GB models26.1mm / 1.028 in
Maximum width101.85mm / 4.0 in (± 0.010 in)
Maximum length147.00mm / 5.78 in
Typical weight
2000GB and 1500GB models635g / 1.39 lb
Cache buffer
2000 and 1500GB models64MB
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 5,000 measurements of seeks between random tracks, less overhead.
Typical seek times (ms)Read Write
Track-to-track1.01.2
Average12.013.0
Average latency5.085.08
These drives are designed to consistently meet the seek times represented in this manual. Physical
Note
14 Barracuda Green SATA Product Manual, Rev. D
seeks, 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.
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