7K200 SATA OEM Specification

Description

 

Bytes

Offset

SMART error log version

 

1

00h

Reserved

 

1

01h

Error log index (7:0)

 

1

02h

Error log index (15:8)

 

1

03h

1st error log data structure

 

124

04h

2nd error log data structure

 

124

80h

3rd error log data structure

 

124

FCh

4th error log data structure

 

124

178h

Device error count

 

2

1F4h

Reserved

 

9

1F6h

Data structure checksum

 

1

1FFh

 

 

512

 

Table 74 Extended comprehensive SMART error Log

 

 

14.16.2.1Error Log version

The value of this version shall be 01h.

14.16.2.2Error log index

This indicates the error log data structure representing the most recent error. If there have been no error log entries, it is cleared to 0. Valid values for the error log index are 0 to 4.

14.16.2.3Extended Error log data structure

An error log data structure shall be presented for each of the last four errors reported by the device. These error log data structure entries are viewed as a circular buffer. The fifth error shall create an error log structure that replaces the first error log data structure. The next error after that shall create an error log data structure that replaces the second error log structure, etc.

Unused error log data structures shall be filled with zeros. Data format of each error log structure is shown below.

Description

Bytes

Offset

1st command data structure

18

00h

2nd command data structure

18

12h

3rd command data structure

18

24h

4th command data structure

18

36h

5th command data structure

18

48h

Error data structure

34

5Ah

 

124

 

Table 75 Extended Error log data structure

 

 

108/173

Page 108
Image 108
Hitachi HDS723020BLA642 manual Error Log version, Error log index, Extended Error log data structure

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.