Seagate ST31500541AS, ST31000520AS manual Reliability, Agency certification, Safety certification

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2.11Reliability

2.11.1Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)

The product shall achieve an Annualized Failure Rate (AFR) of 0.32% (MTBF of 0.75 million hours) when oper- ated in an environment of ambient air temperatures of 25°C. Operation at temperatures outside the specifica- tions in Section 2.8 may increase the product AFR (decrease MTBF). AFR and MTBF are population statistics that are not relevant to individual units.

AFR and MTBF specifications are based on the following assumptions for desktop personal computer environ- ments:

•2,400 power-on-hours per year.

•50,000 average motor start/stop cycles per year.

•Operations at nominal voltages.

•Temperatures outside the specifications in Section 2.8 may reduce the product reliability.

•Normal I/O duty cycle for desktop personal computers. Operation at excessive I/O duty cycle may degrade product reliability.

The desktop personal computer environment of power-on-hours, temperature, and I/O duty cycle affect the product AFR and MTBF. The AFR and MTBF will be degraded if used in an enterprise application

Nonrecoverable read errors

1 per 1014 bits read, max

Annualized Failure Rate (AFR)

0.32% (nominal power, 25°C ambient temperature)

 

 

Contact start-stop cycles

50,000 cycles

 

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

Warranty

To 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.

Preventive maintenance

None required.

 

 

2.12Agency certification

2.12.1Safety certification

These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked as to the certify agency.

2.12.2Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec- tromagnetic Compatibility Directive (2004/108/EC) as put into place 20 July 2007. Testing is performed to the levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels are defined by EN 55024.

Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the directives when used in the test systems, we cannot guarantee that all systems will comply with the directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators should confirm EMC compliance and provide CE marking for their products.

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Barracuda LP Series SATA Product Manual, Rev. A

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Contents Barracuda LP Series Sata ST32000542AS ST31500541AS ST31000520ASRevision history Revision DateContents Barracuda LP Series Sata Product Manual, Rev. a List of Figures Page Introduction About the Serial ATA interface Drive specifications Drive specifications summary for 2000 and 1500 Gbyte models Drive specification ST32000542AS ST31500541AS ST31000520ASBarracuda LP Series Sata Product Manual, Rev. a Formatted capacity Default logical geometryLBA mode Recording and interface technologyTypical access times msec Read Write Physical characteristicsAccess time Start/stop timesPower specifications DC power requirements Typical current profiles Conducted noise Voltage toleranceIdle mode Power-management modesActive mode Sleep modeEnvironmental specifications Nonoperating shock ShockOperating shock VibrationElectromagnetic immunity Drive A-weighted Sound Power Levels SWL, BAAcoustics Test for Prominent Discrete Tones PDTsAgency certification Safety certificationReliability Electromagnetic compatibilityAustralian C-Tick N176 Korean RRLFCC verification Environmental protection Corrosive environmentConfiguring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions 2.0, 1.5 and 1.0 TB models Drive mountingBarracuda LP Series Sata Product Manual, Rev. a Serial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F3H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordWord Set Features command Set Features command valuesA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Presales Support Seagate Technology support servicesTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index ITE Page Barracuda LP Series Sata Product Manual, Rev. a Page Seagate Technology LLC

ST32000542AS, ST31000520AS, ST31500541AS specifications

Seagate has long been a prominent player in the hard disk drive (HDD) market, and their SATA drives have earned a reputation for reliability and performance. Among their notable models are the ST31500541AS, ST31000520AS, and ST32000542AS, each offering unique features and technologies that cater to various storage needs.

The ST31500541AS is a 1.5TB SATA drive known for its robust data handling capabilities. Operating at 7200 RPM, it offers a data transfer rate of up to 6Gb/s, making it suitable for demanding applications that require quick access to large files. This model features Seagate’s perpendicular recording technology, which increases storage density and efficiency. With an average seek time of 8.5 ms, users can expect swift performance for both read and write operations. Its 32MB cache also aids in enhancing data transfer rates and minimizing lag during data retrieval.

Next is the ST31000520AS, a 1TB drive that combines performance with energy efficiency. Also spinning at 7200 RPM, this model exploits Seagate's Advanced Power Management technology, which helps reduce power consumption and extend drive longevity. The ST31000520AS is particularly appealing for users looking to balance performance with energy costs. It features similar specifications to the ST31500541AS, including a 6Gb/s interface and a 32MB cache, ensuring that users can manage large workloads effectively.

Lastly, the ST32000542AS offers a compelling 2TB storage solution. This model caters to users with extensive storage needs, whether it be for multimedia content, backup solutions, or database management. Like its predecessors, it runs at 7200 RPM and benefits from Seagate's innovative technologies, including error correction and data recovery enhancements. With increased storage capacity and performance, this model is particularly suited for both personal and professional setups where data loss is not an option.

In summary, the Seagate ST31500541AS, ST31000520AS, and ST32000542AS exemplify the company's commitment to delivering high-performance hard drive solutions. With their emphasis on speed, energy efficiency, and advanced technologies such as perpendicular recording and power management, each model stands out in its capacity range, making them valuable assets for users seeking dependable storage options. Whether you're a gamer, a creative professional, or need a reliable backup solution, these drives are engineered to meet diverse computing needs with ease.
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