Note:

1.When the L bit is specified to 1, the lower 4 bits of the DH register and all bits of the CH, CL and SN registers indicate the LBA bits (bits of the DH register are the MSB (most significant bit) and bits of the SN register are the LSB (least significant bit).

2.At error occurrence, the SC register indicates the remaining sector count of data transfer.

3.In the table indicating I/O registers contents in this subsection, bit indication is omitted.

(1)READ SECTOR(S) (X'20' or X'21')

This command reads data of sectors specified in the Sector Count register from the address specified in the Device/Head, Cylinder High, Cylinder Low and Sector Number registers. Number of sectors can be specified to 256 sectors in maximum. To specify 256 sectors reading, '00' is specified. For the DRQ, INTRQ, and BSY protocols related to data transfer, see Subsection 5.4.1.

If the head is not on the track specified by the host, the device performs a implied seek. After the head reaches to the specified track, the device reads the target sector.

The DRQ bit of the Status register is always set prior to the data transfer regardless of an error condition.

Upon the completion of the command execution, command block registers contain the cylinder, head, and sector addresses (in the CHS mode) or logical block address (in the LBA mode) of the last sector read.

If an error occurs in a sector, the read operation is terminated at the sector where the error occurred.

Command block registers contain the cylinder, the head, and the sector addresses of the sector (in the CHS mode) or the logical block address (in the LBA mode) where the error occurred, and remaining number of sectors of which data was not transferred.

At command issuance (I/O registers setting contents)

1F7H(CM)

0

0

1

0

0

0

0

R

 

 

 

 

 

 

 

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

 

 

 

R = 0 or 1

C141-E077-01EN

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Fujitsu MPE3XXXAT manual 1F2 HSC Transfer sector count 1F1 HFR = 0 or C141-E077-01EN
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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.
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