Table 105 Error data structure

149

Table 106 Extended Self-test log data structure

150

Table 107 Extended Self-test log descriptor entry

151

Table 108 Command Error information

152

Table 109 Read Stream Error Log

153

Table 110 Stream Error Log entry

154

Table 111 Write Stream Error Log

155

Table 112 Streaming Performance Parameters log

156

Table 113 Sector Time Array Entry (Linearly Interpolated)

156

Table 114 Position Array Entry (Linearly Interpolated)

156

Table 115 Access Time Array Entry (Linearly Interpolated)

156

Table 116 Read Multiple Command (C4h)

157

Table 117 Read Multiple Ext Command (29h)

158

Table 118 Read Native Max ADDRESS (F8h)

160

Table 119 Read Native Max Address Ext (27h)

161

Table 120 Read Sector(s) Command (20h/21h)

163

Table 121 Read Sector(s) Ext Command (24h)

165

Table 122 Read Stream DMA Command (2Ah)

167

Table 123 Read Stream PIO Command (2Bh)

170

Table 124 Read Verify Sector(s) Command (40h/41h)

173

Table 125 Read Verify Sector(s) Ext Command (42h)

175

Table 126 Recalibrate Command (1xh)

177

Table 127 Security Disable Password Command (F6h)

178

Table 128 Password Information for Security Disable Password command

179

Table 129 Security Erase Prepare Command (F3h)

180

Table 130 Security Erase Unit Command (F4h)

181

Table 131 Erase Unit Information

182

Table 132 Security Freeze Lock Command (F5h)

183

Table 133 Security Set Password Command (F1h)

184

Table 134 Security Set Password Information

185

Table 135 Security Unlock Command (F2h)

186

Table 136 Security Unlock Information

187

Table 137 Seek Command (7xh)

188

Table 138 Sense Condition command (F0h)

189

Table 139 Set Features Command (EFh)

190

Table 140 Set Max ADDRESS (F9h)

194

Table 141 Set Max set Password

196

Table 142 Set Max Set Password data contents

196

Table 143 Set Max Lock

197

Table 144 Set Max Unlock (F9h)

198

Table 145 Set Max Freeze Lock (F9h)

199

Table 146 Set Max Address Ext Command (37h)

200

Table 147 Set Multiple Command (C6h)

202

Table 148 Sleep Command (E6h/99h)

203

Table 149 SMART Function Set Command (B0h)

204

Table 150 Log sector addresses

207

Table 151 Device Attribute Data Structure

209

Table 152 Individual Attribute Data Structure

210

Table 153 Device Attribute Thresholds Data Structure

214

Table 154 Individual Threshold Data Structure

214

Table 155 SMART Log Directory

215

Table 156 SMART summary error log sector

216

Table 157 Error log data structure

217

Table 158 Command data structure

217

- Hitachi hard disk drive specifications –

 

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Hitachi HDS721064CLA332 149, 150, 151, 152, 153, 154, 155, Access Time Array Entry Linearly Interpolated 156, 157, 158
Page 7 Page 9

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.
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