Word

Content

 

Description

 

49

xF00H

 

Capabilities, bit assignments:

 

 

 

15-14 (=0)

Reserved

 

 

 

13

Standby timer

 

 

 

(=1) values as specified in ATA standard are supported

 

 

 

(=0) values are vendor specific

 

 

 

12 (=0)

Reserved

 

 

 

11 (=1)

IORDY Supported

 

 

 

10 (=1) IORDY can be disabled

 

 

 

9 (=1)

LBA supported

 

 

 

8 (=1)

DMA supported

 

 

 

7- 0 (=0)

Reserved

50

4000H

 

Capabilities, bit assignments:

 

 

 

15-14(=01) word 50 is valid

 

 

 

13- 1 (=0)

Reserved

 

 

 

0

Minimum value of Standby timer

 

 

 

(=0) less than 5 minutes

51

0200H

 

PIO data transfer cycle timing mode

52

0200H

*

DMA data transfer cycle timing mode

Refer Word 62 and 63

 

 

 

53

0007H

 

Validity flag of the word

 

 

 

15- 8(=0): Free-fall Control Sensitivity

 

 

 

 

00h = Vendor‟s recommended setting

 

 

 

7-3(=0):

Reserved

 

 

 

2(=1): 1=Word 88 is Valid

 

 

 

1(=1): 1=Word 64-70 are Valid

 

 

 

0(=1): 1=Word 54-58 are Valid

54

xxxxH

 

Number of current cylinders

55

xxxxH

 

Number of current heads

56

xxxxH

 

Number of current sectors per track

57-58

xxxxH

 

Current capacity in sectors

 

Word 57 specifies the low word of the capacity

 

 

 

59

0xxxH

 

Current Multiple setting. bit assignments

 

 

 

15- 9 (=0)

Reserved

 

 

 

8 1= Multiple Sector Setting is Valid

 

 

 

7- 0 xxh = Current setting for number of sectors

 

 

 

Total Number of User Addressable Sectors

60-61

xxxxH

 

Word 60 specifies the low word of the number

 

 

 

FFFFFFFh=The 48-bit native max address is greater than 268,435,455

62

0000H

 

 

 

63

xx07H

 

Multiword DMA Transfer Capability

 

 

 

15- 8 Multi word DMA transfer mode active

 

 

 

7- 0 (=7) Multi word DMA transfer modes supported

 

 

 

 

(support mode 0,1 and 2)

640003H Flow Control PIO Transfer Modes Supported

15-8(=0) Reserved

7-0 (=3) Advanced PIO Transfer Modes Supported '11' = PIO Mode 3 and 4 Supported

65

0078H

Minimum Multiword DMA Transfer Cycle Time Per Word

 

 

15-0(=78) Cycle time in nanoseconds (120ns, 16.6MB/s)

 

 

Table 83

Identify device information Continued----

Hitachi hard disk drive specifications

124

Page 124
Image 124
Hitachi HUA722050CLA330/1, HCS721050CLA382, HCS721032CLA382, HCS721025CLA382 Hitachi hard disk drive specifications 124

HCS721016CLA382, HCS721050CLA382, HCS721025CLA382, HDP725050GLA360, HUA722050CLA330/1 specifications

Hitachi's lineup of hard disk drives, including models such as HDS721075CLA632, HDS721032CLA362, HDS721032CLA662, HDS721050CLA362, and DSDS7210C09EN-04, offers a variety of features catering to different storage needs. These drives are widely recognized for their reliability, performance, and efficiency, making them suitable for both consumer and enterprise applications.

The HDS721075CLA632 model, with a capacity of 750GB, strikes a balance between performance and storage capabilities. It operates at 7200 RPM, ensuring quick access to data while maintaining low latency. Its 32MB cache enhances data transfer rates and improves overall system responsiveness. This HDD is particularly useful for gaming, multimedia, and office applications, allowing users to store a substantial amount of data with quick retrieval times.

The HDS721032CLA362 and HDS721032CLA662 share many similarities and are both designed for budget-conscious consumers. With a capacity of 320GB and a 7200 RPM, they offer efficient storage solutions for everyday tasks. The 32MB cache buffer enables efficient caching of frequently accessed files, providing a smooth experience for users.

Another notable model is the HDS721050CLA362, which features a capacity of 500GB. Like its counterparts, this drive operates at a speed of 7200 RPM and utilizes a 32MB cache, which ensures optimal performance for data-heavy applications. This model stands out for its energy efficiency, resulting in lower operational costs, making it an appealing choice for businesses and energy-conscious consumers alike.

On the other hand, the DSDS7210C09EN-04 is a part of Hitachi's enterprise-oriented offerings. This drive is engineered for demanding applications, featuring advanced technologies such as error recovery controls and enhanced data protection features. With a focus on reliability and performance, the DSDS7210C09EN-04 serves well in server environments and for high-performance computing.

Hitachi's hard drives incorporate various technologies that enhance their performance and durability. Features such as staggered start-up, which gradually powers on the drive, help minimize power surges and increase the longevity of the device. Moreover, Hitachi's commitment to quality ensures that each drive undergoes rigorous testing, guaranteeing functionality and reliability.

Overall, the diverse range of models from Hitachi provides effective solutions for anyone from casual users to enterprises, combining storage capacity with advanced technologies to meet the evolving demands of modern data storage.