Hitachi HUA722010CLA330/1, HCS721050CLA382 Read Fpdma Queued 60h, Read Fpdma Queued Command 60h

Page 142

11.17Read FPDMA Queued (60h)

Command Block Output Registers

Register

 

 

 

 

 

7

6

 

5

 

4

 

3

2

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Low

 

 

 

 

-

-

 

-

 

-

 

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data High

 

 

 

 

-

-

 

-

 

-

 

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Feature

 

Current

 

 

V

V

 

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

 

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector Count

Current

 

 

V

V

 

V

V

 

V

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

-

-

 

-

 

-

 

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector

 

Current

 

 

V

V

 

V

V

 

V

V

V

 

V

 

Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

 

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder Low

Current

 

 

V

V

 

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

 

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder High

Current

 

 

V

V

 

V

V

V

V

V

V

 

 

 

 

Previous

V

V

V

V

V

V

V

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Device/Head

 

 

 

 

V

1

 

0

 

0

 

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command

 

 

 

 

0

1

 

1

 

0

 

0

0

0

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

5

 

 

4

 

3

 

2

 

 

 

1

 

 

0

 

CRC

 

UNC

0

 

IDN

 

0

 

ABT

 

 

T0N

 

 

AMN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

 

Vs

0

 

 

V

 

0

 

V

 

 

0

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 98 Read FPDMA Queued Command (60h)

Command Block Input Registers

Register

 

 

 

 

 

7

6

 

5

 

4

3

2

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Low

 

 

 

 

 

-

-

 

-

 

-

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data High

 

 

 

 

-

-

 

-

 

-

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error

 

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector Count

 

HOB=0

 

-

-

 

-

 

-

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOB=1

 

-

-

 

-

 

-

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector

 

 

HOB=0

 

V

 

V

 

V

 

V

V

V

 

V

 

V

Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOB=1

 

V

 

V

 

V

 

V

V

V

 

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder Low

 

HOB=0

 

V

 

V

 

V

 

V

V

V

 

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOB=1

 

V

 

V

 

V

 

V

V

V

 

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder High

 

HOB=0

 

V

 

V

 

V

 

V

V

V

 

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOB=1

V

 

V

V

V

V

V

 

V

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Device/Head

 

 

 

 

-

-

 

-

 

-

-

 

-

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status

 

 

 

 

 

 

 

 

 

…See Below…

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

 

5

 

4

 

 

3

 

2

 

 

1

 

 

0

 

BSY

 

RDY

 

DF

 

DSC

 

DRQ

 

COR

 

IDX

 

ERR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

V

 

0

 

 

V

 

 

-

 

0

 

 

-

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Read FPDMA command reads one or more sectors of data from disk media, and then transfers the data from the device to the host.

If an uncorrectable error occurs, the read will be terminated at the failing sector.

Hitachi hard disk drive specifications

142

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Contents Hard Disk Drive Specification Copyright Hitachi Global Storage Technologies Table of contents Initialize Device Parameters 91h Security Disable Password F6hIdle Immediate E1h/95h Read Log Ext 2Fh11.33 Command table for device lock operation Power supply generated ripple at drive power connectorInput Registers of SCT Data Transfer Using Smart 105 103104 107150 Access Time Array Entry Linearly Interpolated 156149 151Write Multiple FUA Ext Command CEh Selective self-test log data structureUltrastar CinemaStar IntroductionCapacity Type Cache Model# Type and Model#General caution GlossaryReferences General features Part 1. Functional specification Control Electronics Head disk assemblyActuator Default logical drive parameters Formatted capacity1TB model Mechanical positioning performance World Wide Name AssignmentWorld Wide Name Assignment Drive Format Drive organizationCylinder allocation Command overhead Performance characteristicsCommand overhead Mechanical positioning Single Track Seek Time Drive ready timeAverage latency Latency TimeMode transition times Operating mode descriptionsMode transition times Operating modesDefect flagging strategy Hitachi hard disk drive specifications Connector locationSignal connector Electrical interfacePlug Connector pin definition Signal Signal definitionInterface connector pins and I/O signals 2.1 TX+ / TX2.3 5V Precharge 2.4 12V PrechargeOut of band signalingSATA Parameter descriptionsTemperature and humidity Temperature and humidityEnvironment Corrosion test Atmospheric conditionPower supply current of 2 Disk model DC power requirementsPower supply current typical Input voltagePower supply generated ripple at drive power connector Power supply current of 1 Disk modelReliability Required Power-Off Sequence Mechanical specifications Physical dimensionsAll dimensions are in millimeters Bottom and side views with mounting hole locations Physical Dimensions Hole locationsConnector locations Connector locationsDrive mounting Heads unload and actuator lockRandom vibration Linear Vibration and shockOperating vibration Swept sine vibration LinearRandom vibration Nonoperating vibrationOperating shock Swept sine vibrationTrapezoidal shock wave Nonoperating shockNonoperating Rotational shock Sinusoidal shock waveAcoustics Sound power levelsIdentification labels Safety Tick Mark Electromagnetic compatibilityCE Mark Bsmi MarkPart 2. Interface Specification Terminology Check Power ModeDownload Comreset response time Streaming Commands Deviations From StandardCylinder High Register Command registerAlternate Status Register Alternate Status RegisterDevice Control Register Cylinder Low RegisterData Register Device Control RegisterDrive Address Register Drive Address RegisterDevice/Head Register Device/Head RegisterError Register Error RegisterBit Definitions Icrce CRC Sector Count Register Features RegisterSector Number Register Status Register Status RegisterPower On Reset POR Reset ResponseReset Response Soft Reset Software ResetDiagnostic Codes Diagnostic and Reset considerationsDefault Register Values Register InitializationLogical CHS Addressing Mode Sector Addressing ModeLBA Addressing Mode Power Management Commands Power Management FeaturePower Mode Standby timerInterface Capability for Power Modes Power conditionsSmart Function Off-line Read Scanning Error LogSelf-test Device Unlocked mode Security Mode Feature SetSecurity mode Device Frozen modeUser Password setting PasswordMaster Password setting Device locked modeOperation from POR after User Password is set Usual OperationUser Password Lost Attempt limit for Security Unlock commandCommand Table Command Locked Mode Unlocked Mode Frozen ModeSecurity Erase Unit Executable Example for operation In LBA mode Host Protected Area FeatureRead Native Max Address F8h Set Max Address F9h Security extensions Write Cache Function Recovered read errors Non recovered write errorsNon recovered read errors Reassign FunctionPower-up in Standby feature set Advanced Power Management feature set APM12 48-bit Address Feature Set Streaming feature Set Streaming commandsStreaming Logs Sata Interface Power Management Sata Bist Built-in Self TestSoftware Setting Preservation Comreset Preservation RequirementsDevice Power Connector Pin 11 Definition Sata II Optional FeaturesAsynchronous Signal Recovery Counter Reset MechanismsPhy Event Counter Identifiers Counter IdentifiersIdentifier Mandatory Description Bits Optional Counter Definitions Identifier 000hRead LOG EXT Log Page 11h Read LOG EXT Log Page 11h data structure definitionIntroduction SCT Command Transport feature SetOverview Capability definitionSCT Command Nesting and intermingling with Standard commands ResetsIssue SCT Command Using Smart SCT Command ProtocolCommand Transport Output Registers of SCT Command Using SmartIssue SCT Command Using Write Log Ext Key Sector Format SCT Action Code ListKey Sector Format Action codes are defined in Table belowExtended Status Code Extended Status CodeRead/Write SCT Data Using Read/Write Log Ext Read/Write SCT Data Using SmartData transfer Intput Registers of SCT Status Request Using Smart SCT Status Request Using SmartSCT Status Request Using Read Log Ext Input Registers of SCT Status Request Using Read Log ExtFormat of SCT Status Response Current LBA of SCT command executinBackground. If there is no command Currently executing in the background, this479214 Byte275 Reserved 00h 511480 Byte32 Vendor Specific 205 Byte Reserved 00h 209206 Dword213210 Dword Data Format of SCT Status ResponseSCT Write Same Inputs SCT Command SetSCT Write Same action code 0002h SCT Write Same OutputsHitachi hard disk drive specifications Outputs for Error Error Recovery Control command Inputs Error Recovery Control command action code 0003hError Recovery Control command Onputs Feature Control command Inputs Feature Control Command action code 0004hFeature Control command Outputs Feature Code List Feature Code State DefinitionSCT Data Table command Outputs SCT Data Table Command action code 0005hSCT Data Table command Inputs Table IDByte Size Field Name Description Data Format of HDA Absolute Temperature History Table PIO Data In commands Hitachi hard disk drive specifications 100Non-Data commands PIO Data Out commandsHitachi hard disk drive specifications 101 First-party DMA commands DMA Data In commands and DMA Data Out commandsHitachi hard disk drive specifications 102 Hitachi hard disk drive specifications 103 Command SetProtocol Command Code Binary Code Bit Hex Protocol Command Hitachi hard disk drive specifications 104Code Binary Code Bit Hex Hitachi hard disk drive specifications 105 Command Set SubcommandCommand code Feature Command Subcommand Hex Register Output Registers Hitachi hard disk drive specifications 106Input Registers Hitachi hard disk drive specifications 107 Check Power Mode E5h/98hCheck Power Mode Command E5h/98h Input Parameters From The DeviceConfigure Stream Command 51h Configure Stream 51hHitachi hard disk drive specifications 108 Hitachi hard disk drive specifications 109 Device Configuration Overlay Command B1h Device Configuration Overlay B1hDevice Configuration Restore Subcommand C0h Device Configuration Overlay Features register valuesDevice Configuration Set Subcommand C3h Device Configuration Freeze Lock Subcommand C1hDevice Configuration Identify Subcommand C2h Hitachi hard disk drive specifications 111Device Configuration Overlay Data structure Hitachi hard disk drive specifications 112DCO error information definition Hitachi hard disk drive specifications 113Hitachi hard disk drive specifications 114 Download Microcode Command 92hDownload Microcode 92h Hitachi hard disk drive specifications 115 Execute Device Diagnostic Command 90h Execute Device Diagnostic 90hDiagnostic Code Hitachi hard disk drive specifications 116Hitachi hard disk drive specifications 117 Flush Cache Command E7hFlush Cache E7h Hitachi hard disk drive specifications 118 Flush Cache Ext Command EAhFlush Cache Ext EAh Hitachi hard disk drive specifications 119 Format Track Command50hFormat Track 50h Output Parameters To The Device Sector Number Hitachi hard disk drive specifications 120Cylinder High/Low Hitachi hard disk drive specifications 121 Format Unit Command F7hFormat Unit F7h Hitachi hard disk drive specifications 122 Identify Device Command EChIdentify Device ECh Hitachi hard disk drive specifications 123 Identify device informationHitachi hard disk drive specifications 124 Hitachi hard disk drive specifications 125 Gen1 speed of 1.5GbpsHitachi hard disk drive specifications 126 Write CacheHitachi hard disk drive specifications 127 READ/WRITE DMA QueuedHitachi hard disk drive specifications 128 Hitachi hard disk drive specifications 129 Hitachi hard disk drive specifications 130 Reserved Stream Minimum Request Size XxxxHHitachi hard disk drive specifications 131 Current media serial number 0000H=Not supportedHitachi hard disk drive specifications 132 Hitachi hard disk drive specifications 133 Idle Command E3h/97hIdle E3h/97h Hitachi hard disk drive specifications 134 Output Parameters To The DeviceHitachi hard disk drive specifications 135 Idle Immediate Command E1h/95hIdle Immediate E1h/95h Hitachi hard disk drive specifications 136 Initialize Device Parameters Command 91hInitialize Device Parameters 91h Hitachi hard disk drive specifications 137 Read Buffer Command E4hRead Buffer E4h Hitachi hard disk drive specifications 138 Read DMA Command C8h/C9hRead DMAC8h/C9h Hitachi hard disk drive specifications 139 Output Parameters To The Device Sector CountHitachi hard disk drive specifications 140 Read DMA Ext Command 25hRead DMA Ext 25h Hitachi hard disk drive specifications 141 Hitachi hard disk drive specifications 142 Read Fpdma Queued Command 60hRead Fpdma Queued 60h Hitachi hard disk drive specifications 143 Hitachi hard disk drive specifications 144 Read Log Ext Command 2FhRead Log Ext 2Fh Log Address Definition Hitachi hard disk drive specifications 145Sector Count Current General Purpose Log Directory Hitachi hard disk drive specifications 146General Purpose Log Directory Error log index Extended Comprehensive Smart Error logError log version Extended Error log data structureCommand data structure Extended Error log data structureHitachi hard disk drive specifications 148 Error data structure Hitachi hard disk drive specifications 149Self-test log data structure revision number Device error countExtended Self-test log sector Self-test descriptor indexExtended Self-test log descriptor entry Hitachi hard disk drive specifications 151Extended Self-test log descriptor entry Command Error information Command ErrorHitachi hard disk drive specifications 152 Read Stream Error Log Read Stream Error logHitachi hard disk drive specifications 153 Stream Error Log entry Hitachi hard disk drive specifications 154Write Stream Error Log Write Stream Error logHitachi hard disk drive specifications 155 Streaming Performance Parameters log Access Time Array Entry Linearly InterpolatedStreaming Performance log Sector Time Array Entry Linearly InterpolatedHitachi hard disk drive specifications 157 Read Multiple Command C4hRead Multiple C4h Hitachi hard disk drive specifications 158 Read Multiple Ext Command 29hRead Multiple Ext 29h Hitachi hard disk drive specifications 159 Hitachi hard disk drive specifications 160 Read Native Max Address F8hHitachi hard disk drive specifications 161 Read Native Max Address Ext 27hHitachi hard disk drive specifications 162 Hitachi hard disk drive specifications 163 Read Sectors Command 20h/21hRead Sectors 20h/21h Hitachi hard disk drive specifications 164 Hitachi hard disk drive specifications 165 Read Sectors Ext Command 24hRead Sectors Ext 24h Hitachi hard disk drive specifications 166 Output Parameters To The Device Sector Count CurrentHitachi hard disk drive specifications 167 Read Stream DMA Command 2AhRead Stream DMA 2Ah Hitachi hard disk drive specifications 168 Hitachi hard disk drive specifications 169 Hitachi hard disk drive specifications 170 Read Stream PIO Command 2BhRead Stream PIO 2Bh Hitachi hard disk drive specifications 171 Hitachi hard disk drive specifications 172 Ccto Error, bitHitachi hard disk drive specifications 173 Read Verify Sectors Command 40h/41hRead Verify Sectors 40h/41h Hitachi hard disk drive specifications 174 Hitachi hard disk drive specifications 175 Read Verify Sectors Ext Command 42hRead Verify Sectors Ext 42h Hitachi hard disk drive specifications 176 Hitachi hard disk drive specifications 177 Recalibrate Command 1xhRecalibrate 1xh Security Disable Password Command F6h Security Disable Password F6hHitachi hard disk drive specifications 178 Password Information for Security Disable Password command Hitachi hard disk drive specifications 179Hitachi hard disk drive specifications 180 Security Erase Prepare Command F3hSecurity Erase Prepare F3h Hitachi hard disk drive specifications 181 Security Erase Unit Command F4hSecurity Erase Unit F4h Hitachi hard disk drive specifications 182 Erase Unit InformationHitachi hard disk drive specifications 183 Security Freeze Lock Command F5hSecurity Freeze Lock F5h Security Set Password Command F1h Security Set Password F1hHitachi hard disk drive specifications 184 Security Set Password Information Hitachi hard disk drive specifications 185Hitachi hard disk drive specifications 186 Security Unlock Command F2hSecurity Unlock F2h Hitachi hard disk drive specifications 187 Security Unlock InformationHitachi hard disk drive specifications 188 Seek Command 7xhSeek 7xh Sense Condition F0h Vendor specific for Cinemastar Sense Condition command F0hHitachi hard disk drive specifications 189 Input Parameters From The Device Sector CountSet Features Command EFh Set Features EFhHitachi hard disk drive specifications 190 Hitachi hard disk drive specifications 191 Advanced Power Management Set Transfer modeSerial ATA Feature Hitachi hard disk drive specifications 192Hitachi hard disk drive specifications 193 Low Power Idle modeLow RPM standby mode Set Maximum Host Interface Sector TimeSet Max Address F9h Hitachi hard disk drive specifications 194Set Max Address F9h Hitachi hard disk drive specifications 195 Set Max Set Password data contents Set Max Set Password Feature = 01hSet Max set Password Hitachi hard disk drive specifications 196Hitachi hard disk drive specifications 197 Set Max Lock Feature = 02hSet Max Lock Hitachi hard disk drive specifications 198 Set Max Unlock Feature = 03hSet Max Unlock F9h Hitachi hard disk drive specifications 199 Set Max Freeze Lock Feature = 04hSet Max Freeze Lock F9h Hitachi hard disk drive specifications 200 Set Max Address Ext Command 37hSet Max Address Ext 37h Hitachi hard disk drive specifications 201 Hitachi hard disk drive specifications 202 Set Multiple Command C6hSet Multiple C6h Hitachi hard disk drive specifications 203 Sleep Command E6h/99hSleep E6h/99h Hitachi hard disk drive specifications 204 Smart Function Set Command B0hSmart Function Set B0h Smart Read Attribute Thresholds Subcommand D1h Smart SubcommandSmart Read Attribute Values Subcommand D0h Smart Enable/Disable Attribute Autosave Subcommand D2hSmart Execute Off-line Immediate Subcommand D4h Smart Save Attribute Values Subcommand D3hHitachi hard disk drive specifications 206 Smart Enable Operations Subcommand D8h Smart Read Log Sector Subcommand D5hSmart Write Log Sector Subcommand D6h Hitachi hard disk drive specifications 207Smart Enable/Disable Automatic Off-Line Subcommand DBh Smart Disable Operations Subcommand D9hSmart Return Status Subcommand Dah Hitachi hard disk drive specifications 208Data Structure Revision Number Hitachi hard disk drive specifications 209Device Attributes Data Structure Device Attribute Data StructureIndividual Attribute Data Structure Hitachi hard disk drive specifications 210Individual Attribute Data Structure Attribute NameStatus Flag Definitions Bit Definition Hitachi hard disk drive specifications 211Off-Line Data Collection Status Bit 7 Automatic Off-Line Data Collection StatusSelf-test execution status Hitachi hard disk drive specifications 212Off-Line Data Collection Capability Self-test failure check point Error Logging CapabilitySmart Capability Self-test completion timeAttribute ID Numbers Device Attribute Thresholds Data StructureIndividual Thresholds Data Structure Attribute ThresholdSmart Log Directory Hitachi hard disk drive specifications 215Smart Log Directory Smart summary error log sector Smart summary error log sectorSmart error log version Hitachi hard disk drive specifications 216Error log data structure Error log data structureHitachi hard disk drive specifications 217 Hitachi hard disk drive specifications 218 Self-test log data structure Hitachi hard disk drive specifications 219Self-test log data structure Hitachi hard disk drive specifications 220 Feature flagsSelective self-test feature flags Selective self-test log data structureSmart Error Codes Error ReportingHitachi hard disk drive specifications 221 Hitachi hard disk drive specifications 222 Standby Command E2h/96hStandby E2h/96h Hitachi hard disk drive specifications 223 Hitachi hard disk drive specifications 224 Standby Immediate Command E0h/94hStandby Immediate E0h/94h Hitachi hard disk drive specifications 225 Write Buffer Command E8hWrite Buffer E8h Hitachi hard disk drive specifications 226 Write DMA Command Cah/CBhWrite DMA Cah/CBh Hitachi hard disk drive specifications 227 Hitachi hard disk drive specifications 228 Write DMA FUA Ext Command 3DhWrite DMA FUA Ext 3Dh Hitachi hard disk drive specifications 229 Hitachi hard disk drive specifications 230 Write DMA Ext Command 35hWrite DMA Ext 35h Hitachi hard disk drive specifications 231 Hitachi hard disk drive specifications 232 Write Fpdma Queued Command 61hWrite Fpdma Queued 61h Hitachi hard disk drive specifications 233 Hitachi hard disk drive specifications 234 Write Log Ext Command 3FhWrite Log Ext 3Fh Hitachi hard disk drive specifications 235 Hitachi hard disk drive specifications 236 Write Multiple Command C5hWrite Multiple C5h Hitachi hard disk drive specifications 237 Hitachi hard disk drive specifications 238 Write Multiple Ext Command 39hWrite Multiple Ext 39h Hitachi hard disk drive specifications 239 Hitachi hard disk drive specifications 240 Write Multiple FUA Ext CEhHitachi hard disk drive specifications 241 Hitachi hard disk drive specifications 242 Write Sectors Command 30h/31hWrite Sectors 30h/31h Hitachi hard disk drive specifications 243 Hitachi hard disk drive specifications 244 Write Sectors Ext Command 34hWrite Sectors Ext 34h Hitachi hard disk drive specifications 245 Hitachi hard disk drive specifications 246 Write Stream DMA Command 3AhWrite Stream DMA 3Ah WC bit6 Hitachi hard disk drive specifications 247Bit5 Hitachi hard disk drive specifications 248 Hitachi hard disk drive specifications 249 Write Stream PIO Command 3BhWrite Stream PIO 3Bh Hitachi hard disk drive specifications 250 Hitachi hard disk drive specifications 251 Hitachi hard disk drive specifications 252 Write Uncorrectable Ext Command 45hWrite Uncorrectable Ext 45h Hitachi hard disk drive specifications 253 Timeout Values Hitachi hard disk drive specifications 254Hitachi hard disk drive specifications 255 Index 257 258
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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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