Index

4

48-bit Address Feature

72

A

ABRT

51

ABT

51

Advanced Power Management feature

71

AMN

51

AMNF

51

APM

71

Auto Reassign Function

70

Non recovered read errors

70

Non recovered write errors

70

Recovered read errors

70

B

BSY

53

C

Command

 

Check Power Mode (E5h/98h)

107

Configure Stream (51h)

108

Device Configuration Overlay (B1h)

110

Download Microcode (92h)

114

Execute Device Diagnostic (90h)

116

Flush Cache (E7h)

117

Flush Cache Ext (EAh)

118

Format Track (50h)

119

Format Unit (F7h)

121

Identify Device (ECh)

122

Idle (E3h/97h)

133

Idle Immediate (E1h/95h)

135

Initialize Device Parameters (91h)

136

Read Buffer (E4h)

137

Read DMA Ext (25h)

140

Read DMA(C8h/C9h)

138

Read FPDMA Queued (60h)

142

Read Log Ext (2Fh)

144

Read Multiple (C4h)

157

Read Multiple Ext (29h)

158

Read Native Max Address (F8h)

160

Read Native Max Address Ext (27h)

161

Read Sector(s) (20h/21h)

163

Read Sector(s) Ext (24h)

165

Read Stream DMA (2Ah)

167

Read Stream PIO (2Bh)

170

Read Verify Sector(s) (40h/41h)

173

Read Verify Sector(s) Ext (42h)

175

Recalibrate (1xh)

177

Security Disable Password (F6h)

178

Security Erase Prepare (F3h)

180

Security Erase Unit (F4h)

181

Security Freeze Lock (F5h)

183

Security Set Password (F1h)

184

Security Unlock (F2h)

186

Seek (7xh)

188, 189

Set Features (Efh)

190

Set Max (F9h)

 

Set Max Freeze Lock (Feature = 04h)

199

Set Max Lock (Feature = 02h)

197

Set Max Set Password (Feature = 01h)

196

Set Max Unlock (Feature = 03h)

198

Set Max Address (F9h)

194

Set Max Address Ext (37h)

200

Set Multiple (C6h)

202

Sleep (E6h/99h)

203

SMART Function Set (B0h)

204

Standby (E2h/96h)

222

Standby Immediate (E0h/94h)

224

Write Buffer (E8h)

225

Write DMA (Cah/CBh)

226

Write DMA Ext (35h)

230

Write DMA FUA Ext (3Dh)

228

Write FPDMA Queued (61h)

232

Write Log Ext (3Fh)

234

Write Multiple (C5h)

236

Write Multiple Ext (39h)

238

Write Multiple FUA Ext (CEh)

240

Write Sector(s) (30h/31h)

242

Write Sector(s) Ext (34h)

244

Write Stream DMA (3Ah)

246

Write Stream PIO (3Bh)

249, 252

Command Protocol

100

COMRESET

54

COR

53

CORR

53

CRC

51

D

 

DF

53

Diagnostic and Reset considerations

55

DMA Data In commands

102

DMA Data Out commands

102

DRDY

53

DRQ

53

DRV

50

DS0

50

DS1

50

DSC

53

E

 

ERR

53

F

 

First-party DMA commands

102

Flush to Disk bit

74

256

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Hitachi HCS721075CLA332, HCS721050CLA382, HCS721032CLA382, HCS721025CLA382, HUA722010CLA330/1, HDS721075CLA632, A7K2000 Index

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.