Seagate ST31000340NS, ST3250310NS manual Reliability, Agency certification, Safety certification

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2.12Reliability

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

The product shall achieve an Annualized Failure Rate - AFR - of 0.73% (Mean Time Between Failures - MTBF

-of 1.2 Million hrs) when operated in an environment that ensures the HDA case temperatures do not exceed

50°C. Operation at case temperatures outside the specifications in Section 2.9 may increase the product Annu- alized Failure Rate (decrease MTBF). AFR and MTBF are population statistics that are not relevant to individ- ual units.

AFR and MTBF specifications are based on the following assumptions for business critical storage system environments:

•8,760 power-on-hours per year.

•250 average motor start/stop cycles per year.

•Operations at nominal voltages.

•Systems will provide adequate cooling to ensure the case temperatures do not exceed 50°C. Temperatures outside the specifications in Section 2.9 will increase the product AFR and decrease MTBF.

Nonrecoverable read errors

1 per 1015 bits read, max

Annualized Failure Rate (AFR)

0.73% (nominal power, 50°C case 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 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 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 as tested by TUV North America.

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.

Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous paragraph. 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 ES.2 Serial ATA Product Manual, Rev. A

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Contents Barracuda ES.2 Serial ATA ST31000340NSST3500320NS ST3750330NSST3250310NSRevision history Revision DateContents Barracuda ES.2 Serial ATA Product Manual, Rev. a List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specification ST31000340NS ST3750330NS Barracuda ES.2 Serial ATA Product Manual, Rev. a Drive specifications summary for 500 GB and 250 GB models Drive specification ST3500320NS ST3250310NSBarracuda ES.2 Serial ATA Product Manual, Rev. a Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Physical characteristics Recording and interface technology1000GB 750GB 500GB 250GB Seek time Start/stop timesTypical seek times msec Read Write Power specifications Typical current profiles Typical 5V startup and operation current profileConducted noise Voltage tolerancePower-management modes Active modeIdle mode Sleep modeEnvironmental specifications Vibration Operating vibrationNonoperating vibration Acoustics Electromagnetic immunityFluid Dynamic Bearing FDB motor acoustics Radio frequency environmentsSafety certification ReliabilityAgency certification Electromagnetic compatibilityKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Page Barracuda ES.2 Serial ATA Product Manual, Rev. a Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingBarracuda ES.2 Serial ATA Product Manual, Rev. a Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Identify Device command Word Description ValueXx07H 129 Seagate-reserved Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Internet Presales SupportTechnical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Publication feedback survey Barracuda ES.2 Serial ATA Product Manual, Rev. a Index ITE Page Barracuda ES.2 Serial ATA Product Manual, Rev. a Page Disc Drive, Scotts Valley, California 95066-4544, USA
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ST3750330NS, ST31000340NS, ST3250310NS, ST3500320NS specifications

Seagate has long been a leader in the hard drive market, providing various storage solutions for personal and enterprise needs. Among its notable models are the ST3500320NS, ST3320630NS, ST3250310NS, and ST3750330NS, tailored for different applications, particularly in data center environments.

The Seagate ST3500320NS is a 500GB SATA hard drive designed for high-performance computing. One of its key features is a spindle speed of 7200 RPM, which offers quick data access times, significantly reducing latency in read and write operations. This model supports a 3Gb/s SATA interface, ensuring compatibility with a wide range of systems. Another important characteristic of the ST3500320NS is its robust error recovery mechanism, which enhances data integrity, making it suitable for applications where data precision is critical.

The ST3320630NS, on the other hand, is a 320GB variant, also featuring a 7200 RPM spindle speed. This model includes advanced power management features, allowing for reduced energy consumption without sacrificing performance. The drive's design focuses on reliability, designed to handle the demands of continuous operation in RAID configurations or as part of a network-attached storage (NAS) solution. Its dual stage actuator technology ensures more precise positioning of the read/write heads, improving overall performance and durability.

Considered an entry-level model, the ST3250310NS boasts a capacity of 250GB and shares the 7200 RPM speed common to other models. This drive is tailored for cost-effective solutions, providing a balance of price, performance, and reliability for small to medium business environments. Its resilience to shock and vibration makes it suitable for use in mobile workstations and external drives.

Lastly, the ST3750330NS features a significant 750GB capacity while maintaining the same 7200 RPM speed. It offers enhanced caching capabilities with a 32MB buffer, improving data throughput and responsiveness. Designed for high-capacity storage needs, this model is optimized for streaming applications and heavy workloads, reinforcing Seagate's commitment to delivering good performance in demanding scenarios.

All these models embody Seagate's dedication to innovation and reliability, featuring technologies such as Native Command Queuing (NCQ) and S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) to monitor drive health. With years of expertise, Seagate continues to set industry standards for storage solutions, making these models ideal for a variety of professional applications.
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