3.4 Maintenance, Diagnostic Commands

• Sense Key

: 05 = ILLEGAL REQUEST

•Sense Code/Sub-sense Code : 24-00 = Invalid field in CDB

•

“VALID” Bit

:

“1”

•

“ILI” bit

:

“1”

•Information Field : (“Transfer byte length in the CDB) – (Original “Transfer byte length”)

Remark The calculation formula for the information field expresses 1 logical data block as n physical sectors and n sub-sectors, and when negative, as a complement of 2.

Error recovery processing during execution of this command is performed in accordance with the specifications in the MODE SELECT parameters (Page code 1: Read/Write Error Recovery Parameter, Page Code 21: Additional Error Recovery Parameter, but the AWRE flag and DTE flag are not applied.

3.4.7 WRITE SAME (41)

 

Bit

7

6

5

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

X‘41’

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

LUN

 

0

0

PBdata

LBdata

RelAdr

 

 

 

 

 

 

 

 

 

2

 

 

 

Logical Block Address (MSB)

 

 

 

 

 

 

 

 

 

 

3

 

 

 

Logical Block Address

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

Logical Block Address

 

 

 

 

 

 

 

 

 

 

5

 

 

 

Logical Block Address (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

6

 

0

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

7

 

 

 

Number of Blocks (MSB)

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

Number of Blocks (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

0

0

0

0

0

0

0

Link

 

 

 

 

 

 

 

 

 

 

 

This command requests that the device server write the single block of data transferred by the application client to the medium multiple times to consecutive multiple logical blocks.

A "Logical Block data (LBdata)" bit of zero and a "Physical Block data (PBdata)" bit of zero indicates that the single block of data transferred by the application client shall be used without modification. A "LBdata" bit of one requests that the device server replace the first four bytes of the data to be written to the current logical block with the logical block address of the block currently being written.

A "PBdata" bit of one requests that the device server replace the first eight bytes of the data to be written to the current physical sector with the physical address of the sector currently being written using the physical sector format.

C141-E167

3 - 113

Page 174 Page 176
Page 175
Image 175
Fujitsu MAP3367, MAP3147, MAS3735, MAP3735, MAS3367 specifications Write Same
Page 174 Page 176

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