Hitachi HDS723020BLA642 Device Attribute Thresholds Data Structure, Self-test failure check point

Models: HDS723020BLA642

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7K200 SATA OEM Specification

0

Error Logging support bit

If bit = 1, the device supports the Error Logging

14.39.2.10Self-test failure check point

This byte indicates the section of self-test where the device detected a failure.

14.39.2.11Self-test completion time

These bytes are the minimum time in minutes to complete self-test.

14.39.2.12Data Structure Checksum

The Data Structure Checksum is the 2’s compliment of the result of a simple 8-bit addition of the first 511 bytes in the data structure.

14.39.3Device Attribute Thresholds Data Structure

The following defines the 512 bytes that make up the Attribute Threshold information. This data structure is accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Thresholds. All multi-byte fields shown in these data structures follow the ATA/ATAPI-6 specification for byte ordering, namely that the least significant byte occupies the lowest numbered byte address location in the field.

The sequence of active Attribute Thresholds will appear in the same order as their corresponding Attribute Values.

Description

Bytes

 

Offset

 

Format

Value

Data Structure Revision Number

 

2

 

00h

binary

0010h

1st Attribute Threshold

 

12

 

02h

(*1)

(*2)

...

 

 

..

 

 

 

 

...

 

 

..

 

 

 

 

30th Attribute Threshold

 

12

 

15Eh

(*1)

(*2)

Reserved

 

18

 

16Ah

 

(*3)

Vendor specific

 

131

 

17Ch

 

(*3)

Data structure checksum

 

1

 

1FFh

 

(*2)

 

 

 

512

 

 

 

 

(*1)

- See following definitions

 

 

 

 

 

 

(*2)

- Value varied by actual operating condition

 

 

 

 

 

(*3)

- Filled with 00h

 

 

 

 

 

 

Table 114 Device Attribute Thresholds Data Structure

14.39.3.1Data Structure Revision Number

This value is the same as the value used in the Device Attributes Values Data Structure.

14.39.3.2Individual Thresholds Data Structure

The following defines the 12 bytes that make up the information for each Threshold entry in the Device Attribute Thresholds Data Structure. Attribute entries in the Individual Threshold Data Structure is in the same order and correspond to the entries in the Individual Attribute Data Structure.

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Hitachi HDS723020BLA642 Device Attribute Thresholds Data Structure, Self-test failure check point, Data Structure Checksum

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.