Read Long 3E, Lun | Fujitsu MAN3184, MAN3367, MAN3735 guide

3.4.5READ LONG (3E)

Byte	Bit	7	6	5	4		3	2	1	0
		7	6	5	4		3	2	1	0


0						X‘3E’

1			LUN		0	0		0	CORRCT	0

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				Transfer Byte Length (MSB)

8				Transfer Byte Length (LSB)

9		0	0	0	0	0		0	Flag	Link

This command reads the logical data block data and its ECC byte, specified in the “Logical block address” field in the CDB, from the disk media and transfers it to the INIT. Normally, this command is used in combination with the WRITE LONG command to perform checks of the ECC function. The operation object in this command is 1 data block only.

Remark The Pad Byte and Sync Byte patterns are not included in the transfer data.

When “0” is specified in bit 1 of CDB byte 1, the “CORRCT (Corrected)” bit, the IDD does not implement ECC correction processing of data read from the disk media. When “1” is specified in the “CORRCT (Corrected)” bit, data errors that can be corrected by ECC are transferred to the INIT after being corrected in the IDD’s data buffer.

The "Logical byte length" field in the CDB indicates the number of bytes of data transferred to the INIT by this command and if 1 logical data block is configured from n logical sectors (n: 1, 2, 4), it is necessary to specify a [Logical data block length + n x 44] byte length.

When the “Transfer byte length” specifies zero, this command executes a seek operation of the cylinder/track existing in the logical data block which is specified in the “Logical block address” field in the CDB., then is terminated without data being transferred to the INIT.

When a length (other than zero) which does not match the data format on the disk media is specified in the “Transfer byte length” field in the CDB, this command is terminated with a CHECK CONDITION status without executing a data transfer to the INIT. At this time, the sense data indicate the following contents and the INIT can determine the correct “Transfer byte length” from their contents.

C141-E124-01EN

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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.

Fujitsu MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES specifications Read Long 3E, Lun

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

3.4.5READ LONG (3E)

LUN

MAN3735, MAN3184, MAN3367, MAN3735 SERIES DISK DRIVES, MAN3367, MAN3184 specifications