b)Data which have been hit by the READ or READ EXTENDED command and transferred to the INIT once are also objects of caching as long as they are not invalidated.

c)Data transferred from the INIT and written to the disk media by the WRTTE and WRITE EXTENDED command are objects of caching.

d)Data transferred from the INIT and written to the disk media by the WRITE AND VERIFY command is not the objects of caching.

(3)Disabling caching data

Various data which are objects of caching in the data buffer are disabled in the following cases.

a)If any of the following commands is issued for the same data block as data which are the object of caching, that data block ceases to be an object of caching.

ξ WRITE

ξ WRITE AND VERIFY

ξWRITE EXTENDED

b)If any of the following commands is issued, all the data which are objects of caching are disabled.

ξ

CHANGE DEFINITION

ξ

FORMAT UNIT

ξ

LOG SELECT

ξ

LOG SENSE

ξ

MODE SELECT

ξ

MODE SELECT EXTENDED

ξ

MODE SENSE

ξ

MODE SENSE EXTENDED

ξ

PERSISTENT RSV IN

ξ

PERSISTENT RSV OUT

ξ

READ BUFFER

ξ

READ CAPACITY

ξ

READ DEFECT DATA

ξ READ DEFECT DATA (12)

ξ

READ LONG

ξ

REASSIGN BLOCKS

ξ

RECEIVE DIAGNOSTIC RESULTS

ξ

RELEASE EXTENDED

ξ

REPORT DEV ID

ξ

RESERVE EXTENDED

ξ

SEND DIAGNOSTIC

ξ

SET DEV ID

ξ

START/STOP UNIT

ξ

WRITE BUFFER

ξ

WRITE LONG

ξ

WRITE SAME

c)If the data buffer where data which are objects of caching are stored is used by any of the following commands, the data existing in that data buffer which are objects of caching are disabled.

ξ

READ

ξ

WRITE EXTENDED

ξ

READ EXTENDED

ξ

WRITE AND VERIFY

ξ

WRITE

ξ

VERIFY

d)If any of the following events occurs, all the data which are objects of caching are disabled.

ξA RESET condition occurs on the SCSI bus.

ξA TARGET RESET message is issued by any INIT.

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Fujitsu MAN3184, MAN3367, MAN3735 specifications Read Write Extended Read Extended Write and Verify

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.

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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.