7K200 SATA OEM Specification

Word

Content

 

 

 

0

0002h

Data Structure revision

 

1

Multiword DMA

modes supported

 

 

15-3

Reserved

 

 

2

1

= Multiword DMA mode 2 and below are supported

 

 

1

1

= Multiword DMA mode 1 and below are supported

 

 

0

1

= Multiword DMA mode 0 is supported

 

2

Ultra DMA modes

supported

 

 

15-6

Reserved

 

 

5

1

= Ultra DMA mode 5 and below are supported

 

 

4

1

= Ultra DMA mode 4 and below are supported

 

 

3

1

= Ultra DMA mode 3 and below are supported

 

 

2

1

= Ultra DMA mode 2 and below are supported

 

 

1

1

= Ultra DMA mode 1 and below are supported

 

 

0

1

= Ultra DMA mode 0 is supported

 

 

 

 

 

3-6

Maximum LBA

address

7

Command set/feature set supported

 

 

15-9

Reserved

 

 

8

1

= 48-bit Addressing feature set supported

 

 

7

1

= Host Protected Area feature set supported

 

 

6

1

= Automatic acoustic management supported

 

 

5

Reserved

 

 

4

1

= Power-Up in Standby feature set supported

 

 

3

1

= Security feature set supported

 

 

2

1

= SMART error log supported

 

 

1

1

= SMART self-test supported

 

 

0

1

= SMART feature set supported

 

8

SATA feature

 

 

 

 

15-5

Reserved

 

 

4

1

= Software setting preservation supported

 

 

3

Reserved

 

 

2

1

= Interface power management supported

 

 

1

1

= Non-zero buffer offset in DMA Setup FIS supported

 

 

0

1

= Native command queuing supported

 

9-254

Reserved

 

 

 

255

Integrity word <Note .>

 

 

15-8

Checksum

 

 

7-0

Signature (A5h)

 

 

 

 

 

 

Table 46 Device Configuration Overlay Data structure

Note.

Bits 7:0 of this word contain the value A5h. Bits 15:8 of this word contain the data structure checksum. The data structure checksum is the two’s complement of the sum of all byte in words 0 through 254 and the byte consisting of bits 7:0 of word 255. Each byte is added with unsigned arithmetic, and overflow is ignored. The sum of all bytes is zero when the checksum is correct.

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Hitachi HDS723020BLA642 manual Device Configuration Overlay 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.