The contents of the command block registers related to addresses after the transfer of a data block containing an erred sector are undefined. To obtain a valid error information, the host should retry data transfer as an individual requests.

At command issuance (I/O registers setting contents)

1F7H(CM)

1

1

0

0

0

1

0

1

 

 

 

 

 

 

 

1F6H(DH)

×

L

×

DV

 

Start head No. /LBA [MSB]

 

 

 

 

 

 

 

 

1F5H(CH)

 

Start cylinder No. [MSB]/ LBA

 

 

1F4H(CL)

 

Start cylinder No. [LSB] / LBA

 

 

1F3H(SN)

 

Start sector No.

 

 

/ LBA [LSB]

 

1F2H(SC)

 

 

Transfer sector count

 

 

1F1H(FR)

 

 

 

 

xx

 

 

 

At command completion (I/O registers contents to be read)

1F7H(ST)

 

 

 

Status information

 

 

 

 

 

 

 

 

1F6H(DH)

×

L

×

 

DV

 

End head No. /LBA [MSB]

 

 

 

 

 

 

1F5H(CH)

 

End cylinder No. [MSB] / LBA

1F4H(CL)

 

End cylinder No. [LSB] / LBA

1F3H(SN)

 

End sector No.

/ LBA [LSB]

1F2H(SC)

 

 

 

 

00H

 

1F1H(ER)

 

 

 

Error information

Note:

When the command terminates due to error, only the DV bit and the error information field are valid.

(7)WRITE DMA (X'CA' or X'CB')

This command operates similarly to the WRITE SECTOR(S) command except for following events.

The data transfer starts at the timing of DMARQ signal assertion.

The device controls the assertion or negation timing of the DMARQ signal.

The device posts a status as the result of command execution only once at completion of the data transfer.

When an error, such as an unrecoverable medium error, that the command execution cannot be continued is detected, the data transfer is stopped without transferring data of sectors after the erred sector. The device generates an interrupt using the INTRQ signal and posts a status to the host system. The format of the error information is the same as the WRITE SECTOR(S) command.

A host system can be select the following transfer mode using the SET FEATURES command.

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Fujitsu MPE3XXXAT manual Lba Lsb

MPE3XXXAT specifications

The Fujitsu MPE3XXXAT series is a robust line of hard disk drives (HDDs) known for their reliability, performance, and advanced technology. Designed primarily for enterprise storage solutions, these drives cater to high-demand environments such as data centers, servers, and workstations. With capacities ranging from hundreds of gigabytes to several terabytes, the MPE3XXXAT series offers scalable storage options to accommodate a variety of applications.

One of the standout features of the MPE3XXXAT series is its high rotational speed. With most models operating at 7200 RPM, these drives ensure faster data access and improved read/write performance. This speed makes them ideal for applications requiring quick data retrieval, such as database management and data-intensive workloads. Furthermore, the series utilizes a Serial ATA (SATA) interface, which facilitates seamless connectivity and compatibility with a wide range of systems.

The Fujitsu MPE3XXXAT series is built with advanced technologies that enhance durability and longevity. Notably, the drives incorporate advanced error correction algorithms and vibration resistance features, which are crucial for maintaining data integrity over time. This is particularly important in multi-drive environments where vibrations from one drive can affect the performance of others. The drives are also designed with low power consumption in mind, contributing to energy savings without compromising performance.

In terms of data security, the MPE3XXXAT series supports various security features that protect against unauthorized access. These include ATA security features that enable password protection and robust encryption to safeguard sensitive information from potential breaches. This aspect is particularly significant for enterprises that handle confidential data and require stringent security measures.

The operational temperature range of the MPE3XXXAT drives is optimized for demanding environments, allowing them to function effectively in a variety of conditions. Their reliability is backed by an impressive Mean Time Between Failures (MTBF), which signifies their resilience and the manufacturer's commitment to quality.

Overall, the Fujitsu MPE3XXXAT series stands out as a reliable choice for enterprise storage needs. With its blend of high speed, capacity, durability, and security features, it addresses the challenges faced by modern data centers and businesses that require efficient data management solutions. Whether for backup, archival, or active data storage, the MPE3XXXAT series is designed to deliver consistent performance and peace of mind for users.