Seagate ST31000520AS, ST31500541AS manual Formatted capacity, Default logical geometry, LBA mode

Models: ST32000542AS ST31000520AS ST31500541AS

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2.1Formatted capacity

 

Formatted

Guaranteed

 

Model

capacity*

sectors

Bytes per sector

 

 

 

 

ST32000542AS

2000 Gbytes

3,907,029,168

 

 

 

 

 

ST31500541AS

1500 Gbytes

2,930,277,168

512

 

 

 

 

ST31000520AS

1000 Gbytes

1,953,525,168

 

 

 

 

 

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

2.1.1LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the 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 137 Gbytes.

2.2Default logical geometry

Cylinders

Read/write heads

Sectors per track

 

 

 

16,383

16

63

 

 

 

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the number of guaranteed sectors as defined above.

2.3Recording and interface technology

Interface

Serial ATA (SATA)

 

 

Recording method

Perpendicular

 

 

Recording density (kbits/inch max)

1417 kbits/in max

 

 

Track density (ktracks/inch avg)

236 ktracks/in avg

 

 

 

Areal density (Gbits/inch2 avg)

341.5

Gbits/in2 avg

Spindle speed (RPM)

5,900

+/- 0.2%

 

 

Internal data transfer rate (Mbits/sec max)

1285 Mbits/sec max

 

 

Sustained data transfer rate (Mbytes/sec max)

95 Mbytes/sec max

 

 

I/O data-transfer rate (Mbytes/sec max)

300 (Mbytes/sec max)

 

 

 

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Barracuda LP Series SATA Product Manual, Rev. A

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Seagate ST31000520AS manual Formatted capacity, Default logical geometry, Recording and interface technology, LBA mode

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.