Product Manual
Barracuda 7200.8 Serial ATA
ST3400832AS
ST3400632AS
ST3300831AS
ST3300631AS
ST3250823AS
ST3250623AS
ST3200826AS
100325576 Rev. F August 2007
©2006-2007, Seagate Technology LLC All rights reserved. Publication number: 100325576, Rev. F
August 2007
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Barracuda, 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.
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. Quantitative usage examples for various applications are for illustrative purposes. Actual quantities will vary based on various factors, including file size, file format, features and application software. Seagate reserves the right to change, without notice, product offerings or specifications.
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Contents |
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1.0 |
Introduction. . . . |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. 1 |
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1.1 |
About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2 |
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2.0 |
Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3 |
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2.1 |
Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
3 |
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2.2 |
Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
10 |
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2.2.1 |
LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
10 |
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2.3 |
Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
10 |
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2.4 |
Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
11 |
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2.5 |
Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
11 |
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2.6 |
Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
12 |
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2.7 |
Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
12 |
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2.8 |
Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
13 |
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2.8.1 |
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
13 |
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2.8.2 |
Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
15 |
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2.8.3 |
Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
15 |
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2.8.4 |
Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
15 |
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2.9 |
Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.1 |
Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.2 |
Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.3 |
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.4 |
Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.5 |
Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
16 |
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2.9.6 |
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
17 |
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2.10 |
Acoustics |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
17 |
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2.11 |
Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
18 |
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2.12 |
Reliability |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
18 |
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2.13 |
Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
19 |
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2.13.1 |
Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
19 |
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2.13.2 |
Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
19 |
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2.13.3 |
FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
20 |
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2.14 |
Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
21 |
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2.15 |
Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
21 |
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3.0 |
Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
23 |
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3.1 |
Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
23 |
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3.2 |
Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
24 |
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3.3 |
Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
24 |
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3.4 |
Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
25 |
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
i |
ii |
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
List of Figures
Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
iii |
This manual describes the functional, mechanical and interface specifications for the following Seagate Barracuda® 7200.8 Serial ATA model drives:
Barracuda 7200.8 Serial ATA
•ST3400832AS
•ST3400632AS
•ST3300831AS
•ST3300631AS
•ST3250823AS
•ST3250623AS
•ST3200826AS
These drives provide the following key features:
•7,200 RPM spindle speed.
•8 Mbyte buffer (ST3400832AS, ST3300831AS, ST3250823AS, and ST3200826AS models).
•16 Mbyte buffer (ST3400632AS, ST3300631AS, and ST3250623AS models).
•High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).
•Tunneling Magnetoresistive (TMR) recording heads provide the drives with 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.
•300 Gs nonoperating shock.
•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.
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
1 |
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: High Speed Serialized AT Attachment” specification. The specification can be downloaded from www.serialata.org.
2 |
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
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 ST3400832AS, ST3400632AS, ST3300831AS, ST3300631AS, ST3250823AS, ST3250623AS and ST3200826AS models.
The specifications listed in tables 1, 2, and 3 are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
3 |
Table 1: |
Drive specifications for 400 Gbyte models |
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Drive specification |
ST3400832AS |
|
ST3400632AS |
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Formatted Gbytes (512 bytes/sector)* |
400 |
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Guaranteed sectors |
781,422,768 |
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Bytes per sector |
512 |
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Default sectors per track |
63 |
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Default read/write heads |
16 |
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Default cylinders |
16,383 |
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Recording density in BPI (bits/inch max) |
763,000 |
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Track density TPI (tracks/inch avg) |
120,000 |
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Areal density (Mbits/inch2 avg) |
91,560 |
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Spindle speed (RPM) |
7,200 |
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Internal data transfer rate (Mbytes/sec max) |
95 |
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Sustained transfer rate OD (Mbytes/sec) |
65 |
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I/O data transfer rate (Mbytes/sec max) |
150 |
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ATA data-transfer modes supported |
PIO modes 0–4 |
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Multiword DMA modes 0–2 |
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Ultra DMA modes 0–6 |
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SATA data-transfer modes supported |
1.5 Gbits/sec |
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Cache buffer |
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8 Mbytes |
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16 Mbytes |
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Height (max) |
|
26.11 mm (1.028 inches) |
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Width (max) |
|
101.85 mm (4.010 inches) |
||
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Length (max) |
146.99 mm (5.787 inches) |
|||
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Weight (max) grams / lb. |
635 / 1.39 |
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Average latency (msec) |
4.16 |
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Power-on to ready (typical) |
10 sec |
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Standby to ready (typical) |
10 sec |
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Track-to-track seek time (msec typical) |
0.8 (read), 1.0 (write) |
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Average seek, read (msec typical) |
8.0 |
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Average seek, write (msec typical) |
9.0 |
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Startup current (typical) 12V (peak) |
2.8 amps |
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Voltage tolerance |
5V ± 5% |
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(including noise) |
12V ± 10% |
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Ambient temperature |
0° to 60°C (op.) |
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–40° to 70°C (nonop.) |
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Temperature gradient |
20°C (operating) |
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(°C per hour max) |
30°C (nonoperating) |
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Relative humidity |
5% to 90% (operating) |
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5% to 95% (nonoperating) |
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Relative humidity gradient |
30% per hour max |
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4 |
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
Table 1: |
Drive specifications for 400 Gbyte models |
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Drive specification |
ST3400832AS |
ST3400632AS |
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Wet bulb temperature |
37.7 (operating) |
|
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(°C max) |
|
40.0 (nonoperating) |
|
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|
|
|
|
|
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Altitude, operating |
–60.96 m to 3,048 m |
|
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(–200 ft to 10,000+ ft) |
|
|
|
|
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Altitude, nonoperating |
–60.96 m to 12,192 m |
|
|
(meters below mean sea level, max) |
(–200 ft to 40,000+ ft) |
|
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|
|
|
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Shock, operating (max at 2 msec) |
63 Gs |
|
|
|
|
|
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Shock, nonoperating (max at 2 msec) |
300 Gs |
|
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|
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Vibration, operating |
5–22 Hz: Limited displacement |
||
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23–350 Hz: 0.5 G acceleration |
|
|
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Vibration, nonoperating |
5–22 Hz: Limited displacement |
||
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23–350 Hz: 5 Gs acceleration |
|
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|
|
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Drive acoustics, sound power (bels) |
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|
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Idle** |
|
2.8 (typical) |
|
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3.4 (max) |
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|
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Performance seek |
3.7 (typical) |
|
|
|
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3.9 (max) |
|
|
|
|
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Nonrecoverable read errors |
1 per 1014 bits read |
|
|
Annualized Failure Rate (AFR) |
0.34% |
|
|
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|
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Service life |
|
5 Years |
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|
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Warranty |
|
5 years on distribution units. |
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|
|
To determine the warranty for a specific drive, |
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|
|
use a web browser to access the following web |
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|
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page: |
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|
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www.seagate.com/support/service/ |
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|
|
From this page, click on the “Verify Your War- |
|
|
|
ranty” link. You will be asked to provide the drive |
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|
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serial number, model number (or part number) |
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and country of purchase. The system will display |
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|
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the warranty information for your drive. |
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|
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Contact start-stop cycles |
50,000 |
|
|
(25°C, 50% relative humidity) |
|
|
|
|
|
|
|
Supports Hotplug operation per SATA II specification |
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.
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
5 |
Table 2: |
Drive specifications for 300 Gbyte models |
|
|
|
|
|
|
Drive specification |
ST3300831AS |
ST3300631AS |
|
|
|
|
|
Formatted Gbytes (512 bytes/sector)* |
300 |
|
|
|
|
|
|
Guaranteed sectors |
586,072,368 |
|
|
|
|
|
|
Bytes per sector |
512 |
|
|
|
|
|
|
Default sectors per track |
63 |
|
|
|
|
|
|
Default read/write heads |
16 |
|
|
|
|
|
|
Default cylinders |
16,383 |
|
|
|
|
|
|
Recording density in BPI (bits/inch max) |
763,000 |
|
|
|
|
|
|
Track density TPI (tracks/inch avg) |
120,000 |
|
|
|
|
|
|
Areal density (Mbits/inch2 avg) |
91,560 |
|
|
Spindle speed (RPM) |
7,200 |
|
|
|
|
|
|
Internal data transfer rate (Mbytes/sec max) |
95 |
|
|
|
|
|
|
Sustained transfer rate OD (Mbytes/sec) |
65 |
|
|
|
|
|
|
I/O data transfer rate (Mbytes/sec max) |
150 |
|
|
|
|
|
|
ATA data-transfer modes supported |
PIO modes 0–4 |
|
|
|
|
Multiword DMA modes 0–2 |
|
|
|
Ultra DMA modes 0–6 |
|
|
|
|
|
SATA data-transfer modes supported |
1.5 Gbits/sec |
|
|
|
|
|
|
Cache buffer |
|
8 Mbytes |
16 Mbytes |
|
|
|
|
Height (max) |
|
26.11 mm (1.028 inches) |
|
|
|
|
|
Width (max) |
|
101.85 mm (4.010 inches) |
|
|
|
|
|
Length (max) |
146.99 mm (5.787 inches) |
|
|
|
|
|
|
Weight (max) grams / lb. |
635 / 1.39 |
|
|
|
|
|
|
Average latency (msec) |
4.16 |
|
|
|
|
|
|
Power-on to ready (typical) |
10 sec |
|
|
|
|
|
|
Standby to ready (typical) |
10 sec |
|
|
|
|
|
|
Track-to-track seek time (msec typical) |
0.8 (read), 1.0 (write) |
|
|
|
|
|
|
Average seek, read (msec typical) |
8.0 |
|
|
|
|
|
|
Average seek, write (msec typical) |
9.0 |
|
|
|
|
|
|
Startup current (typical) 12V (peak) |
2.8 amps |
|
|
|
|
|
|
Voltage tolerance |
5V ± 5% |
|
|
(including noise) |
12V ± 10% |
|
|
|
|
|
|
Ambient temperature |
0° to 60°C (op.) |
|
|
|
|
–40° to 70°C (nonop.) |
|
|
|
|
|
Temperature gradient |
20°C (operating) |
|
|
(°C per hour max) |
30°C (nonoperating) |
|
|
|
|
|
|
Relative humidity |
5% to 90% (operating) |
|
|
|
|
5% to 95% (nonoperating) |
|
|
|
|
|
Relative humidity gradient |
30% per hour max |
|
|
|
|
|
|
6 |
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
Table 2: |
Drive specifications for 300 Gbyte models |
|
||
|
|
|
|
|
Drive specification |
ST3300831AS |
|
ST3300631AS |
|
|
|
|
|
|
Wet bulb temperature |
37.7 (operating) |
|
||
(°C max) |
|
40.0 (nonoperating) |
|
|
|
|
|
||
|
|
|
||
Altitude, operating |
–60.96 m to 3,048 m |
|
||
|
|
(–200 ft to 10,000+ ft) |
|
|
|
|
|
||
Altitude, nonoperating |
–60.96 m to 12,192 m |
|
||
(meters below mean sea level, max) |
(–200 ft to 40,000+ ft) |
|
||
|
|
|
||
Shock, operating (max at 2 msec) |
63 Gs |
|
||
|
|
|
||
Shock, nonoperating (max at 2 msec) |
300 Gs |
|
||
|
|
|||
Vibration, operating |
5–22 Hz: Limited displacement |
|||
|
|
23–350 Hz: 0.5 G acceleration |
||
|
|
|||
Vibration, nonoperating |
5–22 Hz: Limited displacement |
|||
|
|
23–350 Hz: 5 Gs acceleration |
|
|
|
|
|
|
|
Drive acoustics, sound power (bels) |
|
|
|
|
Idle** |
|
2.8 (typical) |
|
|
|
|
3.4 (max) |
|
|
|
|
|
||
Performance seek |
3.7 (typical) |
|
||
|
|
3.9 (max) |
|
|
|
|
|
||
Nonrecoverable read errors |
1 per 1014 bits read |
|
||
Annualized Failure Rate (AFR) |
0.34% |
|
|
|
|
|
|
|
|
Service life |
|
5 Years |
|
|
|
|
|
|
|
Warranty |
|
5 years on distribution units. |
|
|
|
|
To 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 sys- |
||
|
|
tem will display the warranty information for your drive. |
||
|
|
|
|
|
Contact start-stop cycles |
50,000 |
|
|
|
(25°C, 50% relative humidity) |
|
|
|
|
|
|
|
||
Supports Hotplug operation per SATA II specification |
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.
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
7 |
Table 3: |
Drive specifications for 250 and 200 Gbyte models |
|
|
||
|
|
|
|
|
|
Drive specification |
ST3250823AS |
|
ST3250623AS |
ST3200826AS |
|
|
|
|
|
|
|
Formatted Gbytes (512 bytes/sector)* |
250 |
|
|
200 |
|
|
|
|
|
|
|
Guaranteed sectors |
488,397,168 |
|
|
390,721,968 |
|
|
|
|
|
|
|
Bytes per sector |
512 |
|
|
|
|
|
|
|
|
|
|
Default sectors per track |
63 |
|
|
|
|
|
|
|
|
|
|
Default read/write heads |
16 |
|
|
|
|
|
|
|
|
|
|
Default cylinders |
16,383 |
|
|
|
|
|
|
|
|
|
|
Recording density in BPI (bits/inch max) |
763,000 |
|
|
|
|
|
|
|
|
|
|
Track density TPI (tracks/inch avg) |
120,000 |
|
|
|
|
|
|
|
|
|
|
Areal density (Mbits/inch2 avg) |
91,560 |
|
|
|
|
Spindle speed (RPM) |
7,200 |
|
|
|
|
|
|
|
|
|
|
Internal data transfer rate (Mbytes/sec max) |
95 |
|
|
|
|
|
|
|
|
|
|
Sustained transfer rate OD (Mbytes/sec) |
65 |
|
|
|
|
|
|
|
|
|
|
I/O data transfer rate (Mbytes/sec max) |
150 |
|
|
|
|
|
|
|
|
||
ATA data-transfer modes supported |
PIO modes 0–4 |
|
|
||
|
|
Multiword DMA modes 0–2 |
|
||
|
|
Ultra DMA modes 0–6 |
|
||
|
|
|
|
||
SATA data-transfer modes supported |
1.5 Gbits/sec |
|
|
||
|
|
|
|
|
|
Cache buffer |
|
8 Mbytes |
|
16 Mbytes |
8 Mbytes |
|
|
|
|
|
|
Height (max) |
|
26.11 mm (1.028 inches) |
|
||
|
|
|
|
||
Width (max) |
|
101.85 mm (4.010 inches) |
|
||
|
|
|
|||
Length (max) |
146.99 mm (5.787 inches) |
|
|||
|
|
|
|
|
|
Weight (max) grams / lb. |
635 / 1.39 |
|
|
|
|
|
|
|
|
|
|
Average latency (msec) |
4.16 |
|
|
|
|
|
|
|
|
||
Power-on to ready (typical) |
10 sec |
|
|
||
|
|
|
|
||
Standby to ready (typical) |
10 sec |
|
|
||
|
|
|
|
||
Track-to-track seek time (msec typical) |
0.8 (read), 1.0 (write) |
|
|
||
|
|
|
|
|
|
Average seek, read (msec typical) |
8.0 |
|
|
|
|
|
|
|
|
|
|
Average seek, write (msec typical) |
9.0 |
|
|
|
|
|
|
|
|
||
Startup current (typical) 12V (peak) |
2.8 amps |
|
|
||
|
|
|
|
||
Voltage tolerance |
5V ± 5% |
|
|
||
(including noise) |
12V ± 10% |
|
|
||
|
|
|
|
||
Ambient temperature |
0° to 60°C (op.) |
|
|
||
|
|
–40° to 70°C (nonop.) |
|
|
|
|
|
|
|
||
Temperature gradient |
20°C (operating) |
|
|
||
(°C per hour max) |
30°C (nonoperating) |
|
|
||
|
|
|
|||
Relative humidity |
5% to 90% (operating) |
|
|||
|
|
5% to 95% (nonoperating) |
|
||
|
|
|
|
||
Relative humidity gradient |
30% per hour max |
|
|
||
|
|
|
|
|
|
8 |
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
Table 3: |
Drive specifications for 250 and 200 Gbyte models |
|
|
||
|
|
|
|
|
|
Drive specification |
ST3250823AS |
|
ST3250623AS |
ST3200826AS |
|
|
|
|
|
|
|
Wet bulb temperature |
37.7 (operating) |
|
|
||
(°C max) |
|
40.0 (nonoperating) |
|
|
|
|
|
|
|
||
|
|
|
|
||
Altitude, operating |
–60.96 m to 3,048 m |
|
|
||
|
|
(–200 ft to 10,000+ ft) |
|
|
|
|
|
|
|
||
Altitude, nonoperating |
–60.96 m to 12,192 m |
|
|
||
(meters below mean sea level, max) |
(–200 ft to 40,000+ ft) |
|
|
||
|
|
|
|
||
Shock, operating (max at 2 msec) |
63 Gs |
|
|
||
|
|
|
|
||
Shock, nonoperating (max at 2 msec) |
300 Gs |
|
|
||
|
|
|
|||
Vibration, operating |
5–22 Hz: Limited displacement |
|
|||
|
|
23–350 Hz: 0.5 G acceleration |
|
||
|
|
|
|||
Vibration, nonoperating |
5–22 Hz: Limited displacement |
|
|||
|
|
23–350 Hz: 5 Gs acceleration |
|
||
|
|
|
|
|
|
Drive acoustics, sound power (bels) |
|
|
|
|
|
Idle** |
|
2.8 (typical) |
|
|
|
|
|
3.4 (max) |
|
|
|
|
|
|
|
||
Performance seek |
3.7 (typical) |
|
|
||
|
|
3.9 (max) |
|
|
|
|
|
|
|
||
Nonrecoverable read errors |
1 per 1014 bits read |
|
|
||
Annualized Failure Rate (AFR) |
0.34% |
|
|
|
|
|
|
|
|
|
|
Service life |
|
5 Years |
|
|
|
|
|
|
|
||
Warranty |
|
5 years on distribution units. |
|
||
|
|
To 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 war- |
|||
|
|
ranty information for your drive. |
|
||
|
|
|
|
|
|
Contact start-stop cycles |
50,000 |
|
|
|
|
(25°C, 50% relative humidity) |
|
|
|
|
|
|
|
|
|
||
Supports Hotplug operation per SATA II specification |
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.
Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
9 |