3.4 Maintenance, Diagnostic Commands

Bit

7

 

6

5

 

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

X ‘40’

(Page Code)

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

0

0

 

0

0

0

0

0

 

 

 

 

 

 

 

 

 

2

 

 

 

X ‘00’

(Page Parameter Length)

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

X ‘0A’

(Page Parameter Length)

 

 

 

 

 

 

 

 

 

 

4

0

0

0

 

0

0

Address Format Before Conversion

 

 

 

 

 

 

 

 

5

0

 

0

0

 

0

 

0

Address Format After Conversion

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

Logical or Physical Address

 

 

 

 

 

 

 

 

~

~

~

~

~

~

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

Figure 3.23 RECEIVE DIAGNOSTIC RESULTS response data: logical/physical address conversion

Note:

The value of the “Page Parameter Length” field in this response data is a variable length within the range of [2 + 8n] in the SCSI specifications. For example, If multiple logical data blocks are located in 1 physical sector, or if 1 logical data block is located in multiple physical sectors, n address information items are reported as the address conversion results.

In the current IDD specifications, multiple address information items are not reported in this response data, but the “Page parameter length” always shows X ‘000A.’ However, considering expanded specifications in the future, the INIT should make it possible to correspond to variable lengths for the “Page parameter length.”

The “Address Format Before Conversion” field in byte 4 and the “Address Format After Conversion” field in byte 5 are the same values as the codes which show the expression format for address information specified by the SEND DIAGNOSTIC command parameters. The “Address Format After Conversion” field shows the expression format of the address information reported in bytes 6 to 13 of this response data. “Address format” codes are as shown below.

Code

Address Format

 

 

 

 

0

0

0

Logical Block Address Format

1

0

0

Byte Distance from the Index Format

1

0

1

Physical Sector Address Format

 

 

 

 

C141-E167

3 - 101

Page 162 Page 164
Page 163
Image 163
Fujitsu MAP3735, MAP3367, MAP3147, MAS3735, MAS3367 specifications Bit Byte ‘40’ Code ‘00’ Parameter Length ‘0A’
Page 162 Page 164

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.

Similarly, the MAP3367 and MAS3367 models are geared towards both enterprise and mid-range server environments, providing a storage capacity of up to 300 GB as well. These drives also operate at a spindle speed of 15,000 RPM, offering swift access times that enhance overall system performance. The MAP3367 employs the Ultra 320 SCSI interface, allowing for significant bandwidth and ensuring data is transmitted efficiently.

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.
Top Page Image Contents