Table 109 defines the format of each entry in the Read Stream Error Log.

Description

Bytes

Offset

 

 

 

Feature Register Contents Value (current)

1

00h

 

 

 

Feature Register Contents Value (previous)

1

01h

 

 

 

 

Status

Register Contents Value

1

02h

 

 

 

 

Error

Register Contents Value

1

03h

 

 

 

LBA (7:0)

1

04h

 

 

 

LBA (15:8)

1

05h

 

 

 

LBA (23:16)

1

06h

 

 

 

LBA (31:24)

1

07h

 

 

 

LBA (39:32)

1

08h

 

 

 

LBA (47:40)

1

09h

 

 

 

Reserved

2

0A-0Bh

 

 

 

Sector Count (LSB)

1

0Ch

 

 

 

Sector Count (MSB)

1

0Dh

 

 

 

Reserved

2

0E-0Fh

 

 

 

 

Table 110 Stream Error Log entry

Byte (1:0) contains the contents of the Feature Register when the error occurred. This Value shall be set to 0FFFFh for s deferred write error.

Byte 2 contains the contents of the Status Register when the error occurred.

Byte 3 contains the contents of the Error Register when the error occurred.

Byte (9:4) indicates the starting LBA of the error.

Byte (13:12) indicate the length of the error. Therefore, each entry may describe a range of sectors at the given address and spanning the specified number of sectors.

Hitachi hard disk drive specifications

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Hitachi HDS721032CLA362, HCS721050CLA382, A7K2000 Stream Error Log entry, Hitachi hard disk drive specifications 154

HCS721016CLA382, HCS721050CLA382, HCS721025CLA382, HDP725050GLA360, HUA722050CLA330/1 specifications

Hitachi's lineup of hard disk drives, including models such as HDS721075CLA632, HDS721032CLA362, HDS721032CLA662, HDS721050CLA362, and DSDS7210C09EN-04, offers a variety of features catering to different storage needs. These drives are widely recognized for their reliability, performance, and efficiency, making them suitable for both consumer and enterprise applications.

The HDS721075CLA632 model, with a capacity of 750GB, strikes a balance between performance and storage capabilities. It operates at 7200 RPM, ensuring quick access to data while maintaining low latency. Its 32MB cache enhances data transfer rates and improves overall system responsiveness. This HDD is particularly useful for gaming, multimedia, and office applications, allowing users to store a substantial amount of data with quick retrieval times.

The HDS721032CLA362 and HDS721032CLA662 share many similarities and are both designed for budget-conscious consumers. With a capacity of 320GB and a 7200 RPM, they offer efficient storage solutions for everyday tasks. The 32MB cache buffer enables efficient caching of frequently accessed files, providing a smooth experience for users.

Another notable model is the HDS721050CLA362, which features a capacity of 500GB. Like its counterparts, this drive operates at a speed of 7200 RPM and utilizes a 32MB cache, which ensures optimal performance for data-heavy applications. This model stands out for its energy efficiency, resulting in lower operational costs, making it an appealing choice for businesses and energy-conscious consumers alike.

On the other hand, the DSDS7210C09EN-04 is a part of Hitachi's enterprise-oriented offerings. This drive is engineered for demanding applications, featuring advanced technologies such as error recovery controls and enhanced data protection features. With a focus on reliability and performance, the DSDS7210C09EN-04 serves well in server environments and for high-performance computing.

Hitachi's hard drives incorporate various technologies that enhance their performance and durability. Features such as staggered start-up, which gradually powers on the drive, help minimize power surges and increase the longevity of the device. Moreover, Hitachi's commitment to quality ensures that each drive undergoes rigorous testing, guaranteeing functionality and reliability.

Overall, the diverse range of models from Hitachi provides effective solutions for anyone from casual users to enterprises, combining storage capacity with advanced technologies to meet the evolving demands of modern data storage.