11.42.2.4Self-test execution status

Bit Definition

0-3Percent Self-test remaining

An approximation of the percent of the self-test routine remaining until completion in ten percent increments. Valid values are 0 through 9.

4-7Current Self-test execution status

0The self-test routine completed without error or has never been run

1The self-test routine aborted by the host

2The self-test routine interrupted by the host with a hard or soft reset

3The device was unable to complete the self-test routine due to a fatal error or unknown test error

4The self-test routine completed with unknown element failure

5The self-test routine completed with electrical element failure

6The self-test routine completed with servo element failure

7The self-test routine completed with read element failure

15The self-test routine in progress

11.42.2.5Total Time in Seconds to Complete Off-line Data Collection Activity

This field tells the host how many seconds the device requires completing the off-line data collection activity.

11.42.2.6Off-Line Data Collection Capability

Bit Definition

0Execute Off-line Immediate implemented bit

0SMART Execute Off-line Immediate subcommand is not implemented

1SMART Execute Off-line Immediate subcommand is implemented

1Enable/disable Automatic Off-line implemented bit

0SMART Enable/disable Automatic Off-line subcommand is not implemented

1SMART Enable/disable Automatic Off-line subcommand is implemented

2abort/restart off-line by host bit

0The device will suspend off-line data collection activity after an interrupting command and resume it after some vendor specific event

1The device will abort off-line data collection activity upon receipt of a new command

3Off-line Read Scanning implemented bit

0The device does not support Off-line Read Scanning

1The device supports Off-line Read Scanning

4Self-test implemented bit

0Self-test routine is not implemented

1Self-test routine is implemented

5-7Reserved (0)

6Selective self-test implemented bit

0 Selective self-test routine is not implemented

1 Selective self-test routine is implemented

Hitachi hard disk drive specifications

212

Page 212
Image 212
Hitachi HDS721075CLA632, HCS721050CLA382, HCS721032CLA382 Self-test execution status, Off-Line Data Collection Capability

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.