2.12Reliability

2.12.1Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)

The product shall achieve an Annualized Failure Rate (AFR) of 0.34% (MTBF of 0.7 million hours) when oper- ated in an environment of ambient air temperatures of 25°C. Operation at temperatures outside the specifica- tions in Section 2.9 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:

2400 power-on-hours per year.

10,000 average motor start/stop cycles per year.

Operations at nominal voltages.

Temperatures outside the specifications in Section 2.9 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 a enterprise application.

Nonrecoverable read errors

1 per 1014 bits read, max

Annualized Failure Rate (AFR)

0.34% (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

5 years on distribution units.

 

To determine the warranty for a specific drive, use a web browser to access the fol-

 

lowing 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 warranty information for your drive.

Preventive maintenance

None required.

 

 

2.13Agency certification

2.13.1Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections of IEC950 and EN 60950.

2.13.2Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec- tromagnetic Compatibility Directive (89/336/EEC). 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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Seagate ST3250410AS, ST3250310AS Reliability, Agency certification, Safety certification, Electromagnetic compatibility

ST3250310AS, ST3250410AS specifications

The Seagate ST3250310AS and ST3250410AS are notable hard drives that belong to the Barracuda series, known for their value and performance in the consumer and business sectors. These drives, featuring SATA interface technology, are especially popular among users seeking reliable storage solutions for desktops and personal computers.

The ST3250310AS model comes with a storage capacity of 250 GB, while the ST3250410AS offers an increased capacity of 400 GB. Both models are designed with a standard 3.5-inch form factor, making them compatible with most PC enclosures. The drives are equipped with a 7200 RPM rotational speed, which provides enhanced data access times and improved overall performance compared to slower drives.

One of the key features of these devices is their utilization of the SATA 3.0 interface, allowing for data transfer rates of up to 3 Gbps. This interface enhances the drive's performance when paired with compatible motherboards and systems. Additionally, the drives are equipped with a 16 MB buffer, which assists in improving the efficiency of the read and write operations, particularly during tasks that require frequent data access.

Seagate's Advanced Format technology is another characteristic of the ST3250310AS and ST3250410AS. This technology uses larger sector sizes, which allows for more efficient storage of data, resulting in increased capacity and potentially improved reliability. Furthermore, the drives come with a mean time between failures (MTBF) rating of about 1,000,000 hours, signifying their robust build quality designed for durability in varied computing environments.

The hard drives also leverage Seagate's SmartAlign technology, facilitating the drive's operation with Advanced Format hard drives seamlessly. The drives are compatible with various operating systems and are particularly suited for applications requiring high data availability and fast retrieval, such as gaming and media storage.

In summary, the Seagate ST3250310AS and ST3250410AS hard drives are solid options for users looking for dependable, high-performance storage solutions. Their blend of reliability, speed, and efficiency makes them suitable for a variety of applications, from personal computing to small business use. With their combination of advanced technologies and user-friendly characteristics, these drives stand out as capable choices for enhancing computer storage capabilities.