Seagate ST94811AB Formatted capacity, Default logical geometry, Physical organization, LBA mode

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2.2

Formatted capacity

 

 

 

 

 

 

 

Model

 

Formatted capacity

Guaranteed sectors

Bytes per sector

 

 

 

 

 

ST94811AB

 

40 Gbytes

78,140,160

512

 

 

 

 

 

2.3

Default 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.

2.4Physical organization

Model

Read/write heads

Number of discs

 

 

 

ST94811AB

2

1

 

 

 

2.5Recording and interface technology

Technology

Specification

 

 

Interface

Parallel ATA

 

 

Recording method

RLL 0,11

 

 

Recording density BPI (bits/inch max)

642,000

 

 

Track density TPI (tracks/inch max)

100,780

 

 

Areal density (Mbits/inch2 max)

65

Spindle speed (RPM) (± 0.2%)

5,400

 

 

Internal data transfer rate OD (Mbytes/sec max)

48.25

 

 

Sustained data transfer rate OD (Mbytes/sec max)

34.5

 

 

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

100 (Ultra DMA mode 5)

 

 

Interleave

1:1

 

 

Cache buffer

 

ST94811AB

8 Mbytes (8,192 kbytes)

 

 

Momentus Blade Server Product Manual, Rev. B

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Contents ST94811AB Momentus Blade ServerPage Contents Momentus Blade Server Product Manual, Rev. B List of Figures Momentus Blade Server Product Manual, Rev. B Momentus disc drive IntroductionMomentus Blade Server Product Manual, Rev. B Drive specification ST94811AB Drive specificationsSpecification summary SpecificationsSpecifications Physical organization Default logical geometryLBA mode Formatted capacityTypical seek times msec Read Write Physical characteristicsSeek time Time to readyPower specifications Voltage tolerance Typical current profileConducted noise Environmental specifications Vibration ShockOperating shock Nonoperating shockElectromagnetic immunity AcousticsElectromagnetic immunity Drive level acousticsAgency certification Safety certificationMeasurement type Specification ReliabilityFCC verification Korean RRLAustralian C-Tick N176 Momentus Blade Server Product Manual, Rev. B Master/slave configuration Configuring and mounting the driveHandling and static discharge precautions Jumper settingsCable-select option Drive mountingCable Connector Conductor Contact Signal Name ATA interface signals and connector pinsConnector signals Connector Cable Signal Name Contact ConductorCommand name Command code in hex ATA-standard commands Supported ATA commandsSupported commands ATA-standard security commands Command name Command code in hexATA-standard power-management commands Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordFeatures register values Set Features commandCode in features register A.R.T. command 4 S.M.A.R.T. commandsSupported S.M.A.R.T. commands Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Numerics IndexPage TMR Momentus Blade Server Product Manual, Rev. B Page Seagate Technology LLC

ST94811AB specifications

The Seagate ST94811AB is a highly regarded hard disk drive that has made its mark in the world of data storage solutions. With a capacity of 80 GB, this drive was designed to meet the growing demands for reliable and efficient data storage in both personal and professional settings.

One of the main features of the ST94811AB is its 2.5-inch form factor, which makes it ideal for use in laptops, portable devices, and compact desktop systems. This size allows for easy integration into various applications while maintaining a balance between portability and performance. The drive operates at 5400 RPM, providing a solid performance level that is adequate for a wide range of tasks, including data backup, file storage, and even light gaming.

In terms of connectivity, the Seagate ST94811AB utilizes the SATA interface, which is standard for modern hard drives. This interface supports high-speed data transfer rates, ensuring efficient and quick access to stored files. The SATA connection enhances the overall responsiveness of the drive, making it a suitable choice for users who prioritize speed and reliability.

When it comes to durability, this drive was built with robustness in mind. The ST94811AB features Seagate's proprietary technologies that aim to extend the lifespan of the drive while providing protection against data loss. This includes advanced error correction mechanisms and shock resistance, which are crucial for maintaining data integrity, especially in portable devices that may be subjected to bumps and vibrations.

Another significant characteristic of the ST94811AB is its low power consumption. This feature is particularly beneficial for laptop users, as it contributes to longer battery life without sacrificing performance. The drive's efficient design helps to reduce heat generation, which in turn enhances the longevity of both the drive and the device it's installed in.

Overall, the Seagate ST94811AB stands out as a reliable and efficient hard drive solution. Its blend of performance, durability, and energy efficiency makes it a sought-after choice among users looking for dependable data storage. Whether for everyday use or specific applications that require compact form factors, the ST94811AB delivers a balanced performance suitable for various data management needs.
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