Output Parameters To The Device

Feature

Log Address Specific

Sector Count Current

The number of sectors to be read from the specified log low order, bits (7:0).

 

The log transferred by the drive shall start at the sector in the specified log at the

 

specified offset, regardless of the sector count requested.

Sector Count Previous

The number of sectors to be read from the specified log high orders, bits (15:8).

Sector Number Current

The log to be returned as described in 0.

Cylinder Low Current

The first sector of the log to be read low order, bits (7:0).

Cylinder Low Previous

The first sector of the log to be read high order, bits (15:8).

Log address Content

Feature set

Type

00h

Log directory

N/A

Read Only

03h

Extended Comprehensive SMART error log

SMART error logging

Read Only

06h

SMART self-test log

SMART self-test

See Note

07h

Extended SMART self-test log

SMART self-test

Read Only

10h

Command Error

Native Command Queuing

Read Only

11h

Phy Event Counters

Serial ATA

Read Only

20h

Streaming Performance log

Streaming

Read Only

21h

Write Stream Error log

Streaming

Read Only

22h

Read Stream Error log

Streaming

Read Only

80h-9Fh

Host vendor specific

SMART

Read/Write

 

 

 

 

Note: If log address 06h is accessed using the Read Log Ext or Write Log Ext commands, command abort shall be returned.

Note: Please see 9.17.3 about Phy Event Counter.

Table 100 Log Address Definition

The Extended SMART self-test log sector shall support 48-bit and 28-bit addressing. All 28-bit entries contained in the SMART self-test log sector shall also be included in the Comprehensive SMART self-test log sector with the 48-bit entries.

If the feature set associated with the log specified in the Sector Number register is not supported or enabled, or if the values in the Sector Count, Sector Number or Cylinder Low registers are invalid, the device shall return command aborted.

Hitachi hard disk drive specifications

145

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Hitachi HDS721075CLA332, A7K2000 Log Address Definition, Hitachi hard disk drive specifications 145, Sector Count Current

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.