Hitachi HDS723020BLA642 manual Individual Attribute Data Structure

Models: HDS723020BLA642

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7K200 SATA OEM Specification

14.39.2.2Individual Attribute Data Structure

The following defines the 12 bytes that make up the information for each Attribute entry in the Device Attribute Data Structure.

Description

Bytes

Offset

Format

 

Attribute ID Number (01h to FFh)

1

00h

binary

 

Status Flags

2

01h

bit flags

 

Bit 0 Pre-Failure/Advisory

 

 

 

 

Bit 1 On-line Collection

 

 

 

 

 

 

 

 

 

Bit 2-5 Reserved (may either 0 or 1)

 

 

 

 

 

 

 

 

 

Bit 6-15 Reserved (all 0)

 

 

 

 

 

 

 

 

 

Attribute Value (valid values from 01h to FEh)

1

03h

binary

 

00h invalid for attribute value – not to be used

 

 

 

 

01h minimum value

 

 

 

 

 

 

 

 

 

64h initial value for all attributes prior to any data collection

 

 

 

 

 

 

 

 

 

FDh maximum value

 

 

 

 

 

 

 

 

 

FEh value is not valid

 

 

 

 

 

 

 

 

 

FFh invalid for attribute value - not to be used

 

 

 

 

 

 

 

 

 

Reserved (may not be 0)

1

04h

binary

 

Reserved (may not be 0)

6

05h

binary

 

Reserved (00h)

1

0Bh

binary

 

Total Bytes

12

 

 

 

Table 112 Individual Attribute Data Structure

 

 

 

 

Attribute ID Numbers: Any non-zero value in the Attribute ID Number indicates an active attribute. The device supports following Attribute ID Numbers. Those marked with (*) indicate that corresponding Attribute Values can be either collected on-line or off-line.

ID

Attribute Name

0

Indicates that this entry in the data structure is not used

1

Raw Read Error Rate (*)

2

Throughput Performance (*)

3

Spin Up Time

4

Start/Stop Count

5

Reallocated Sector Count

7

Seek Error Rate

8

Seek Time Performance (*)

9

Power-On Hours Count

10

Spin Retry Count

12

Device Power Cycle Count

191

G Sense error rate

192

Power off retract count

193

Load/Unload cycle count

194

Device Temperature

196

Reallocation Event Count

197

Current Pending Sector Count

198

Off-Line Scan Uncorrectable Sector Count

199

Ultra DMA CRC Error Count

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Hitachi HDS723020BLA642 manual Individual Attribute 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.