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Seagate ST940811A manual ATA Security Erase Unit bits, Additional technical notes, Word Content

Models: ST940811A ST960814A ST9120826A ST980821A ST9100826A

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Table 8:

ATA Security Erase Unit bits

 

 

 

 

 

 

 

Word

 

Content

 

 

 

 

 

 

 

0

 

Control word

 

 

 

 

 

 

 

 

 

Bit 0

 

Identifier

0 = Compare User password

 

 

 

 

 

 

 

 

 

 

 

1 = Compare Master password

 

 

 

 

 

 

 

 

Bit 1

 

Erase mode

0 = Normal Erase

 

 

 

 

 

 

 

 

 

 

 

1 = Enhanced Erase

 

 

 

 

 

 

 

 

Bit (15:2)

 

Reserved

 

 

 

 

 

 

 

1 - 16

 

Password (32 bytes)

 

 

 

 

 

 

 

17 - 255

 

Reserved

 

 

 

 

 

 

 

 

Choosing the Enhanced Erase mode will simply perform the Cryptographic Erase described above, and return status almost immediately. This is the recommended option.

To maintain consistency with the ATA Security specification, Momentus 5400 FDE drives provide an option to perform the Normal Erase mode.

Note. Choosing normal erase will result in the drive overwriting the entire drive, with data encrypted with the newly generated encryption key, in addition to the Cryptographic Erase.

4.1.3Additional technical notes

Additional notes are available on the following web site:

http://www.seagate.com/support/fde

This site shows technical notes about additional new commands for FDE drives and other FDE-related infor- mation.

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Momentus 5400 FDE Product Manual, Rev. C

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Seagate ST940811A, ST960814A, ST9100826A, ST980821A ATA Security Erase Unit bits, Additional technical notes, Word Content
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ST940811A, ST960814A, ST9120826A, ST980821A, ST9100826A specifications

Seagate's ST9100826A, ST980821A, ST9120826A, ST960814A, and ST940811A hard drives represent some of the company's commitment to providing reliable and high-performance storage solutions. Each model features distinct specifications and technologies that cater to various data storage needs.

The ST9100826A is a 100 GB hard drive that utilizes a 7200 RPM spindle speed, ensuring quick data access and transfer rates. With an IDE interface, this drive supports a data transfer rate of up to 100 MB/s, making it suitable for intensive applications. Additionally, the ST9100826A comes equipped with a 2 MB cache, optimizing data retrieval speeds and enhancing overall performance.

Moving to the ST980821A, this 80 GB drive also operates at 7200 RPM and features a similar IDE interface, which offers compatible integration with various systems. Designed with reliability in mind, it boasts a mean time between failures (MTBF) rating of 1 million hours, appealing to users who prioritize durability. This drive’s compact size allows it to fit seamlessly into a range of configurations, from personal computers to external enclosures.

The ST9120826A, with a substantial capacity of 120 GB, continues the trend of high-performance drives in this lineup. Its 7200 RPM speed and 2 MB cache ensure that users experience efficient data handling. With a more advanced read/write head technology, the drive also minimizes noise during operation, making it suitable for both desktop environments and home media centers.

The ST960814A comes with a 60 GB storage capacity and features an ultra-slim design, making it an excellent choice for portable devices. Often favored by users needing external storage for laptops or gaming consoles, this model maintains a 5400 RPM speed while providing commendable performance and durability, making data retrieval swift and smooth.

Lastly, the ST940811A, featuring a compact 40 GB capacity, serves as a versatile option for users looking to upgrade their existing systems. With an IDE connection and a design focused on energy efficiency, this drive is perfect for economical builds while still providing good performance for standard applications.

In summary, Seagate’s ST9100826A, ST980821A, ST9120826A, ST960814A, and ST940811A each demonstrate innovative features and reliability across various storage needs. With diverse capacities, spindle speeds, and robust technologies, they solidify Seagate’s reputation as a leader in data storage solutions.