7K200 SATA OEM Specification

14.16Read Log Ext(2Fh)

 

Command Block Output Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

 

 

7

 

 

6

 

 

5

 

 

4

 

 

3

 

 

2

 

 

1

 

0

 

Register

 

 

 

7

 

 

 

6

 

5

 

 

4

3

 

 

 

2

 

1

 

 

 

0

 

Data Low

 

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

Data Low

 

 

 

-

 

-

 

-

 

-

-

 

-

 

-

 

-

 

Data High

 

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

Data High

 

 

 

-

 

-

 

-

 

-

-

 

-

 

-

 

-

 

Feature

 

 

Current

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

R-

 

Error

 

 

 

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

Previous

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector Count

Current

 

V

 

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

V

 

Sector Count

 

HOB=0

-

 

-

 

-

 

-

-

 

 

-

 

-

 

 

-

 

 

 

 

 

Previous

 

V

 

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

V

 

 

 

 

 

 

HOB=1

-

 

 

-

 

-

 

-

-

 

 

-

 

-

 

 

 

-

 

LBA Low

Current

 

V

 

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

V

 

LBA Low

 

HOB=0

-

 

 

-

 

-

 

-

-

 

 

-

 

-

 

 

 

-

 

 

 

 

 

Previous

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

 

-

 

-

 

 

 

 

 

 

HOB=1

-

 

 

-

 

-

 

-

-

 

 

-

 

-

 

 

 

-

 

LBA Mid

Current

 

V

 

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

V

 

LBA Mid

 

HOB=0

-

 

 

-

 

-

 

-

-

 

 

-

 

-

 

 

 

-

 

 

 

 

 

Previous

 

V

 

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

 

V

 

V

 

 

 

 

 

 

HOB=1

-

 

 

-

 

-

 

-

-

-

 

-

 

 

 

-

 

LBA High

Current

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

LBA High

 

HOB=0

-

-

-

-

-

 

-

 

-

 

-

 

 

 

 

 

Previous

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

 

 

 

 

 

HOB=1

-

 

-

 

-

 

-

-

 

-

 

-

 

-

 

Device

 

 

 

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

-

 

Device

 

 

 

-

 

-

 

-

 

-

-

 

-

 

-

 

-

 

Command

 

 

0

 

0

 

1

 

0

 

1

 

1

 

1

 

1

 

Status

 

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

 

5

4

3

 

 

 

 

2

 

 

 

1

 

 

 

0

 

 

7

 

6

 

5

 

4

 

3

 

 

2

 

1

 

 

0

 

CRC

 

UNC

 

0

IDN

0

 

 

 

ABT

 

 

T0N

 

 

AMN

 

BSY

 

RDY

 

DF

DSC

DRQ

 

COR

IDX

ERR

 

V

 

V

 

0

V

0

 

 

 

 

 

V

 

 

 

0

 

 

 

0

 

 

0

 

V

 

0

 

V

 

-

 

 

0

 

0

 

 

V

Table 71 Read Log Ext Command (2Fh)

This command returns the specified log to the host. The device shall interrupt for each DRQ block transferred.

 

Output Parameters To The Device

 

 

 

 

 

 

R

 

Phy Event Counter Reset bit.

When Log address is 11h (Phy Event Counter) and this

 

 

 

 

bit is set to 1, all Phy Event Counter values are reset to 0 after sending the current

 

 

 

 

counter valules.

 

 

 

 

 

 

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).

 

 

LBA Low Current

The log to be returned as described in the following table.

 

 

 

 

LBA Mid Current

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

 

 

 

 

LBA Mid Previous

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

 

 

 

 

 

 

 

 

 

 

Log

Content

 

Feature set

Type

 

 

address

 

 

 

 

 

 

 

 

00h

Log directory

 

N/A

 

Read Only

 

 

03h

Extended Comprehensive

SMART

SMART

error

Read Only

 

 

 

error log

 

logging

 

 

 

 

07h

Extended SMART self-test log

SMART self-test

Read Only

 

 

10h

Command Error

 

Native

Command

Read Only

 

 

 

 

 

 

Queuing

 

 

 

 

11h

Phy Event Counter

 

Phy Event Counter

Read Only

 

 

80h-9Fh

Host vendor specific

 

SMART

 

Read/Wri

 

 

 

 

 

 

 

 

te

 

 

Table 72 Log address definition

 

 

 

 

 

106/173

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Image 106
Hitachi HDS723020BLA642 Read Log Ext2Fh, Read Log Ext Command 2Fh, Log address definition, Output Parameters To The Device
Page 105 Page 107

HDS723020BLA642 specifications

The Hitachi HDS723020BLA642 is a high-performance hard disk drive that exemplifies the balance between reliability and advanced technology, making it an excellent choice for a range of applications, from desktop computers to enterprise storage solutions. This 2TB SATA hard drive is designed to meet the growing data storage needs of users who demand both speed and efficiency.

One of the key features of the HDS723020BLA642 is its impressive rotational speed of 7200 RPM. This speed facilitates faster data access and improved overall performance, significantly enhancing the user experience during data-intensive operations such as gaming, video editing, and large file transfers. Coupled with a SATA III interface, this drive facilitates data transfer rates of up to 6 Gb/s, providing an efficient conduit for moving data quickly between the hard drive and the motherboard.

The drive comes equipped with a large 64 MB cache, which plays a crucial role in buffering read and write operations. This substantial amount of cache memory allows the drive to temporarily store frequently accessed data, leading to reduced latency and enabling smoother multitasking capabilities. Users will benefit from faster load times and reduced wait periods when working with large files.

Reliability is another defining characteristic of the HDS723020BLA642. Hitachi, now a part of Western Digital, has a longstanding reputation for producing durable hard drives. This model incorporates advanced technologies, such as the Fluid Dynamic Bearing (FDB) for quieter operation and better longevity. The drive also features an enhanced error recovery system that minimizes the risk of data loss, making it a suitable option for both personal and professional use.

In terms of power efficiency, the HDS723020BLA642 is designed to consume less power during operation compared to older hard drive models. This efficiency not only helps in reducing operational costs but also contributes to a longer lifespan for the drive itself.

Overall, the Hitachi HDS723020BLA642 hard drive combines speed, reliability, and efficiency into a compact package, making it an ideal choice for users needing a substantial amount of storage without compromising on performance. Whether for upgrading an existing system or building a new one, this drive offers a blend of technology and durability that caters to modern storage demands.
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