9.18.2.3.3Format of SCT Status Response

Byte

Type

Field Name

Value

Description

 

 

1:0

Word

Format Version

0003h

Status Response format version number

3:2

Word

SCT Version

 

Manufacturer‟s

vendor

specific

 

 

 

 

implementation version number

 

5:4

Word

SCT Spec.

0001h

Highest level of SCT Technical Report

 

 

 

 

supported

 

 

9:6

DWord

Status Flags

 

Bit 0 : Segment Initialized Flag

 

 

 

 

 

If this bit is set to 1, an SCT Write Same

 

 

 

 

command write to all LBAs of the drive has

 

 

 

 

completed without error. This bit shall be

 

 

 

 

cleared to 0 when any user LBA is written,

 

 

 

 

even if write cache is enabled. This bit is

 

 

 

 

alse cleared if the capacity of the drive is

 

 

 

 

changed via SETMAX, SETMAX EXT or

 

 

 

 

DCO. This bit is preserved through a power

 

 

 

 

cycle.

 

 

 

 

 

 

Bit 1-31 : Reserved

 

 

10

Byte

Drive Status

 

0 = Active waiting for a command

 

 

 

 

 

1 = Stand-by

 

 

 

 

 

 

2 = Sleep

 

 

 

 

 

 

3 = DST executing in background

 

 

 

 

 

4 = SMART ODC executing in background

 

 

 

 

5 = SCT executing in background

 

13:11

Byte[3]

reserved

00h

 

 

 

15:14

Word

Extended Status

 

Status Of last SCT command issued.

 

 

Code

 

FFFFh if SCT command executing in

 

 

 

 

background.

 

 

17:16

Word

Action Code

 

Action code of last SCT command issued. If

 

 

 

 

the Extended Status Code is FFFFh, this is

 

 

 

 

the Action Code of the command that is

 

 

 

 

current executing.

 

 

19:18

Word

Function Code

 

Function code of last SCT command

 

 

 

 

issued. If the Extended Status Code is

 

 

 

 

FFFFh, this is the Function Code of the

 

 

 

 

command that is current executing.

 

39:20

Byte[20]

reserved

00h

 

 

 

47:40

QWord

LBA

 

Current LBA of SCT command executin in

 

 

 

 

background. If there is no command

 

 

 

 

currently executing in the background, this

 

 

 

 

field is undefined.

 

 

199:48

Byte[152]

 

00h

 

 

 

200

Byte

HDA Temp

 

Current HDA temperature in degrees

 

 

 

 

Celsius. This is a 2‟s complement number.

 

 

 

 

80h indicates that this value is invalid.

201

Byte

Min Temp

 

Minimum HDA temperature in degrees

 

 

 

 

Celsius. This is a 2‟s complement integer.

 

 

 

 

80h indicates that this value is invalid.

202

Byte

Max Temp

 

Maximum HDA temperature in degrees

 

 

 

 

Celsius. This is a 2‟s complement number.

 

 

 

 

80h indicates that this value is invalid.

203

Byte

Life Min Temp

 

Minimum HDA temperature in degrees

 

 

 

 

Celsius seen for the life of the device. This

 

 

 

 

is a 2‟s complement integer. 80h indicates

 

 

 

 

that this value is invalid.

 

204

Byte

Life Max Temp

 

Maximum HDA temperature in degrees

 

 

 

 

Celsius seen for the life of the drive. This is

 

 

 

 

a 2‟s complement number. 80h indicates

 

 

 

 

that this value is invalid.

 

Hitachi hard disk drive specifications

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Hitachi HCS721010CLA332, HCS721050CLA382, A7K2000 Format of SCT Status Response, Current LBA of SCT command executin

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.

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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.