Manuals / Fujitsu / Computer Equipment / Computer Drive

Fujitsu MAS3367, MAP3367, MAP3147, MAS3735, MAP3735 specifications Format Commands

Models: MAP3735 MAP3147 MAS3367 MAP3367 MAS3735

1 290
Download 290 pages 28.72 Kb
Page 139
Image 139

3.3 Format Commands

(2)Specifying the initialization method

The INIT can specify the method of defect processing executed by this command in the “FmtData (format data)” bit and “CmpLst (complete list)” bit of CDB byte 1 and the “Defect List Format” field.

When “1” is specified in the “FmtData (format data) bit, it indicates that the format parameters (header and defect list), described later, are transferred from the INIT when this command is executed. When this bit’s specification is “0,” it indicates that the format parameters are not transferred.

When the “CmpLst (complete list)” bit is “1”, it indicates that the previously existing G List is replaced with the defect list (D List) transferred from the INIT when this command is executed. When this bit is “0,” the contents of the D List are added to those of the previously existing G List.

The “Defect List Forma” field specifies the format of the defect list (D List) transferred from the INIT when the “FmtData (format data)” bit is “1.” Any one of the following formats can be specified for the defect list.

 

Defect List Format

 

D List Format

 

 

 

 

0

0

0

Block Address Format

 

 

 

 

1

0

0

Byte Distance from the Index Format

 

 

 

 

1

0

1

Physical Sector Address Format

 

 

 

 

If (0,0,0) is specified in the Defect List Format field and a value other than 0 is specified in “Defect List Length” in the Format parameters, this command is terminated with a CHECK CONDITION status (ILLEGAL REQUEST / Invalid field in parameter list).

The “Interleave factor” field in the CDB specifies the method of positioning logical data blocks in physical sectors on the disk media. Whichever value is specified in this field, the IDD does not apply sector interleave, but physically positions logical data blocks continuously in continuous sectors.

C141-E167

3 - 77

Page 138 Page 140
Page 139
Image 139
Fujitsu MAS3367, MAP3367, MAP3147, MAS3735, MAP3735 specifications Format Commands
Page 138 Page 140

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.