Command code

Feature

Command (Subcommand)

(Hex)

Register

 

 

(Hex)

(SMART Function)

 

 

SMART Read Attribute Values

B0

D0

SMART Read Attribute Thresholds

B0

D1

SMART Enable/Disable Attribute Autosave

B0

D2

SMART Save Attribute Values

B0

D3

SMART Execute Off-line Data Collection

B0

D4

SMART Read Log

B0

D5

SMART Write Log

B0

D6

SMART Enable Operations

B0

D8

SMART Disable Operations

B0

D9

SMART Return Status

B0

DA

SMART Enable/Disable Automatic Off-line

B0

DB

(Set Features)

 

 

Enable Write Cache

EF

02

Set Transfer Mode

EF

03

Enable Advanced Power Management

EF

05

Enable Power-up in Standby Feature Set

EF

06

Power-up in Standby Feature Set Device Spin-up

EF

07

Disable read look-ahead feature

EF

55

Disable reverting to power on defaults

EF

66

Disable write cache

EF

82

Disable Advanced Power Management

EF

85

Disable Power-up in Standby Feature Set

EF

86

Enable read look-ahead feature

EF

AA

Enable reverting to power on defaults

EF

CC

Table 68 Command Set (Subcommand)

Table 66 Command Set on the page 103 and Table 67 Command Set --Continued--on the page 104 show the commands that are supported by the device. Table 68 Command Set (Subcommand) on the page 105 shows the sub-commands they are supported by each command or feature.

Hitachi hard disk drive specifications

105

Page 105
Image 105
Hitachi HDS721010CLA332, HCS721050CLA382, A7K2000 Command Set Subcommand, Hitachi hard disk drive specifications 105

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.