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Fujitsu MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES Mode Sense Data Type Specifications

Models: MAN3735 MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES MAN3367 MAN3184

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Table 3.1

MODE SENSE Data Type Specifications

 

 

 

PC

 

Type of Parameter Transferred to the INIT

 

 

 

00

Current Values:

 

 

Reports each "Current" parameter value. The "Current" values are either of the following values.

 

ξ Values specified by a MODE SELECT or MODE SELECT EXTENDED command which is finally

 

normally terminated.

 

 

ξ When a MODE SELECT or MODE SELECT EXTENDED command is not executed after the power is

 

switched on, after a RESET condition or after a BUS DEVICE RESET message issued by any INIT is

 

received, the same values as "Save" values. However, if "Save" values do not exist for parameters other

 

than those on Page 3 and Page 4 (excluding byte 17), the same values as "Default" values.

 

 

 

01

Variable Values:

 

 

The INIT reports variable parameter fields and parameter bits through the MODE SELECT or MODE

 

SELECT EXTENDED command. A "1" is reported in the variable fields and bit positions in each page

 

descriptor and "0" is reported in the fields and bit positions which cannot be changed. See the description

 

of each page descriptor for the MODE SELECT command (Section 3.1.5) concerning the variability of each

 

parameter.

 

 

 

 

10

Default Values:

 

 

Reports the "Default" value of each parameter. See the description of each page descriptor for the MODE

 

SELECT command (Section 3.1.5) concerning the actual default value of each parameter.

 

 

 

11

Save Values:

 

 

Reports the "Save" value of each parameter. The "Save" values are either of the following values.

ξFor parameters other than those on Page 3 and Page 4 (excluding byte 17), these are the values specified in a MODE SELECT or MODE SELECT EXTENDED command in which the "SP" bit after the final execution is completed is "1." When a MODE SELECT or MODE SELECT EXTENDED command in which the "SP" bit is "1" is not executed (when "Save" values do not exist), these are the same values as the "Default" values.

ξThe values in the parameters in Page 3 and Page 4 (excluding byte 17) are the values save to the disk media during execution of the FORMAT UNIT command.

The "Transfer Byte Length" field in the CDB specifies the total number of bytes of MODE SENSE data which can be transferred to the INIT by this command. The IDD transfers the number of bytes of all the MODE SENSE data specified in the "Page code" field or the portion of MODE SENSE data with the length specified in the "Transfer Byte Length" field, whichever is smaller. When zero is specified in the "Transfer Byte Length" field, this command is terminated without anything being transferred.

Figure 3.10 shows the data configuration in the parameter list (MODE SENSE data) transferred to the INIT by this command. The parameter list consists of a 4-byte header, an 8-byte block descriptor and one or more page descriptors, specified in the CDB, which are transferred in order. However, when "1" is specified in the DBD bit of the CDB, the block descriptor is not transferred. Also, when X '00' is specified in the "Page code" field of the CDB, the page descriptor is not transferred.

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Fujitsu MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES specifications Mode Sense Data Type Specifications
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MAN3735, MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES, MAN3367, MAN3184 specifications

Fujitsu's MAN3184, MAN3367, and MAN3735 series disk drives represent a significant advancement in storage technology, catering to the needs of businesses seeking reliability, performance, and high capacity. These drives are designed for enterprise environments, providing exceptional data integrity and speed essential for effective data management.

The MAN3184 series is renowned for its high rotational speed of 10,000 RPM, which significantly enhances data access times. With a capacity of up to 18.4 GB, these drives are suitable for applications requiring quick read and write operations. The series employs an improved read/write head technology, which reduces latency and increases overall performance. This technology is complemented by advanced error correction mechanisms, ensuring the reliability necessary for critical data applications.

Transitioning to the MAN3367 series, these drives offer increased storage capacity and improved performance metrics. With capacities reaching up to 36.7 GB, they cater to growing data demands in modern enterprises. They also feature a 10,000 RPM spindle speed, ensuring that the drives can handle intensive workloads with ease. The MAN3367 drives include SCSI interface support, making them versatile and easy to integrate into various systems. The inclusion of intelligent caching algorithms allows for faster data retrieval, while built-in thermal management features ensure optimal performance, even under heavy usage.

The MAN3735 series takes performance up another notch, boasting higher capacities of up to 73.5 GB. These drives are particularly suited for environments that require high reliability and availability. The series utilizes a state-of-the-art SCSI Ultra160 interface, which maximizes data transfer rates, ultimately enhancing overall system efficiency. Additionally, the MAN3735 series employs advanced data protection technologies, including power loss protection and predictive failure analysis, which proactively minimizes potential downtime.

All these series of Fujitsu disk drives are built with a focus on durability and sustained performance. They are designed to operate seamlessly in high-demand environments, ensuring that organizations can rely on them for critical applications. Their compact design and energy-efficient operation make them an ideal choice for modern data centers looking to optimize space and reduce power consumption.

In summary, Fujitsu's MAN3184, MAN3367, and MAN3735 series disk drives deliver a blend of high capacity, performance, and reliability. These drives incorporate advanced technologies that address the evolving needs of enterprise storage solutions, making them a valuable asset for any organization aiming to enhance their data management capabilities.