3.1 Control/Sense Commands

Figure 3.9 shows the configuration of the parameter list (MODE SELECT parameters) transferred by this command from the INIT. Compared to the 4-byte header in the Group 0 MODE SELECT command, it is necessary for an 8-byte header to be transferred in this command. The contents of each field in the header except that the byte positions differ, are the same as in the case of the Group 0 MODE SELECT command. The contents of the other parameters (Block descriptor, Page descriptor) are also the same as in the case of the Group 0 MODE SELECT command.

Header

 

Bit

7

6

5

 

4

 

3

 

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

X‘00’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

X‘00’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

X‘00’ (Medium Type)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

⋅

0

0

 

⋅

 

0

 

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

X‘00’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

X‘00’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

X '00' (Block Descriptor Length: LSB)

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

X‘00’ or X‘08’ (block descriptor length: MSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Block Descriptor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

6

5

 

4

 

3

 

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

Data Block Count (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

Data Block Count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

Data Block Count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Data Block Count (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

X‘00’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Data Block Length (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

Data Block Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

Data Block Length (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C141-E167

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Image 89
Fujitsu MAS3367, MAP3367, MAP3147, MAS3735, MAP3735 specifications Header
Page 88 Page 90

MAP3735, MAP3147, MAS3367, MAP3367, MAS3735 specifications

Fujitsu, a renowned leader in technology and innovation, has developed a variety of reliable hard disk drives (HDDs) that cater to a wide range of data storage needs. Among these, the MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series stand out for their advanced features and exceptional performance.

The MAS3735 is a high-capacity enterprise-class drive that boasts a storage capacity of up to 300 GB. Its 10,000 RPM spindle speed ensures rapid data retrieval and efficient performance, making it ideal for data-intensive applications. It utilizes a Serial Attach SCSI (SAS) interface, which allows for improved data transfer rates and increased reliability compared to traditional SATA drives. The drive is designed with advanced technologies such as error recovery and data integrity features, ensuring the safety and security of critical data.

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On the other hand, both MAP3147 and MAP3735 models provide versatile solutions for various applications, supporting capacities from 36 GB to 147 GB. The MAP3147, with its 10,000 RPM speed, is optimized for workloads requiring quick access and high throughput, making it suitable for transactional systems and enterprise applications. The MAP3735, while offering comparable capacity, emphasizes exceptional reliability and durability, which is crucial for environments that involve heavy data loads.

All these Fujitsu HDDs are characterized by their robust construction, reliability, and efficiency. They are built to withstand heavy workloads and are equipped with features like advanced thermal management and acoustic noise reduction, ensuring they operate effectively in data center environments.

In conclusion, Fujitsu's MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series HDDs are designed for high performance and reliability, catering to both enterprise and mid-range environments. Their advanced features make them a strong choice for businesses looking to enhance their storage solutions while maintaining data integrity and system performance.
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