Hitachi HDS721050CLA662, HCS721050CLA382, A7K2000 Read Log Ext 2Fh, Read Log Ext Command 2Fh

Page 144

11.18Read Log Ext (2Fh)

Command Block Output Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

 

 

 

 

 

7

 

6

5

 

4

 

3

2

1

 

0

 

 

Register

 

 

 

 

 

7

6

 

5

4

3

 

2

 

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Low

 

 

 

 

-

 

-

-

 

-

 

-

 

-

-

 

-

 

 

Data Low

 

 

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data High

 

 

 

 

-

 

-

-

 

-

 

-

 

-

-

 

-

 

 

Data High

 

 

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

 

 

V

V

V

V

 

V

V

V

 

V

 

 

Error

 

 

 

 

 

 

 

 

...See Below...

 

 

 

Feature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

 

 

V

V

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

HOB=0

 

-

-

 

-

-

-

 

-

 

-

 

-

 

Sector Count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector Count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

V

V

 

V

V

V

 

V

 

 

HOB=1

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

 

 

V

V

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

HOB=0

 

-

-

 

-

-

-

 

-

 

-

 

-

 

Sector Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sector Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

-

 

-

-

 

-

 

-

 

-

-

 

-

 

 

HOB=1

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

 

 

V

V

V

V

 

V

V

V

 

V

 

 

 

 

 

 

 

HOB=0

 

-

-

 

-

-

-

 

-

 

-

 

-

 

Cylinder Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

V

V

V

V

 

V

V

V

 

V

 

 

HOB=1

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current

 

 

-

 

-

-

 

-

 

-

 

-

-

 

-

 

 

 

 

 

 

 

HOB=0

 

-

-

 

-

-

-

 

-

 

-

 

-

 

Cylinder High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Previous

 

-

 

-

-

 

-

 

-

 

-

-

 

-

 

 

HOB=1

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Device/Head

 

 

 

 

1

 

-

1

 

D

 

-

 

-

-

 

-

 

 

Device/Head

 

 

 

-

-

 

-

-

-

 

-

 

-

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command

 

 

 

 

0

 

0

1

 

0

 

1

1

1

 

1

 

 

Status

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

 

5

 

 

4

 

3

 

 

2

 

 

 

1

 

 

0

 

 

7

 

6

 

5

 

4

 

 

3

 

 

2

 

 

 

1

 

 

0

CRC

 

UNC

 

0

 

IDN

 

0

 

 

ABT

 

 

T0N

 

 

AMN

 

 

 

BSY

 

RDY

 

DF

DSC

 

DRQ

 

COR

 

 

IDX

 

ERR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

V

 

0

 

 

V

 

0

 

 

V

 

 

0

 

 

0

 

 

0

 

V

 

0

 

V

 

 

-

 

 

0

 

 

 

-

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 99 Read Log Ext Command (2Fh)

This command returns the specified log to the host. The device shall interrupt for each DRQ block transferred.

Hitachi hard disk drive specifications

144

Page 143 Page 145
Image 144
Page 143 Page 145
Contents Hard Disk Drive Specification Copyright Hitachi Global Storage Technologies Table of contents Security Disable Password F6h Idle Immediate E1h/95hInitialize Device Parameters 91h Read Log Ext 2Fh11.33 Power supply generated ripple at drive power connector Command table for device lock operationInput Registers of SCT Data Transfer Using Smart 103 104105 107Access Time Array Entry Linearly Interpolated 156 149150 151Write Multiple FUA Ext Command CEh Selective self-test log data structureIntroduction Capacity Type Cache Model#Ultrastar CinemaStar Type and Model#Glossary General cautionReferences General features Part 1. Functional specification Head disk assembly Control ElectronicsActuator Default logical drive parameters Formatted capacity1TB model World Wide Name Assignment Mechanical positioning performanceWorld Wide Name Assignment Drive organization Drive FormatCylinder allocation Performance characteristics Command overheadCommand overhead Mechanical positioning Drive ready time Average latencySingle Track Seek Time Latency TimeOperating mode descriptions Mode transition timesMode transition times Operating modesDefect flagging strategy Connector location Signal connectorHitachi hard disk drive specifications Electrical interfaceSignal definition Interface connector pins and I/O signalsPlug Connector pin definition Signal 2.1 TX+ / TX2.3 5V Precharge 2.4 12V PrechargeOut of band signalingSATA Parameter descriptionsTemperature and humidity Temperature and humidityEnvironment Corrosion test Atmospheric conditionDC power requirements Power supply current typicalPower supply current of 2 Disk model 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 lockVibration and shock Operating vibrationRandom vibration Linear Swept sine vibration LinearNonoperating vibration Operating shockRandom vibration Swept sine vibrationNonoperating shock Nonoperating Rotational shockTrapezoidal shock wave Sinusoidal shock waveSound power levels AcousticsIdentification labels Safety Electromagnetic compatibility CE MarkTick Mark Bsmi MarkPart 2. Interface Specification Check Power Mode Download Comreset response time Streaming CommandsTerminology Deviations From StandardCommand register Alternate Status RegisterCylinder High Register Alternate Status RegisterCylinder Low Register Data RegisterDevice Control Register Device Control RegisterDrive Address Register Device/Head RegisterDrive Address Register Device/Head RegisterError Register Error RegisterBit Definitions Icrce CRC Features Register Sector Count RegisterSector Number Register Status Register Status RegisterReset Response Reset ResponsePower On Reset POR Soft Reset Software ResetDiagnostic and Reset considerations Default Register ValuesDiagnostic Codes Register InitializationSector Addressing Mode Logical CHS Addressing ModeLBA Addressing Mode Power Management Feature Power ModePower Management Commands Standby timerInterface Capability for Power Modes Power conditionsSmart Function Error Log Off-line Read ScanningSelf-test Security Mode Feature Set Security modeDevice Unlocked mode Device Frozen modePassword Master Password settingUser 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 Host Protected Area Feature Example for operation In LBA modeRead Native Max Address F8h Set Max Address F9h Security extensions Write Cache Function Non recovered write errors Non recovered read errorsRecovered 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 RequirementsSata II Optional Features Asynchronous Signal RecoveryDevice Power Connector Pin 11 Definition Counter Reset MechanismsCounter Identifiers Phy Event Counter IdentifiersIdentifier Mandatory Description Bits Optional Counter Definitions Identifier 000hRead LOG EXT Log Page 11h Read LOG EXT Log Page 11h data structure definitionSCT Command Transport feature Set OverviewIntroduction Capability definitionSCT Command Nesting and intermingling with Standard commands ResetsSCT Command Protocol Command TransportIssue SCT Command Using Smart Output Registers of SCT Command Using SmartIssue SCT Command Using Write Log Ext SCT Action Code List Key Sector FormatKey Sector Format Action codes are defined in Table belowExtended Status Code Extended Status CodeRead/Write SCT Data Using Smart Read/Write SCT Data Using Read/Write Log ExtData transfer SCT Status Request Using Smart SCT Status Request Using Read Log ExtIntput Registers of SCT Status Request Using Smart Input Registers of SCT Status Request Using Read Log ExtCurrent LBA of SCT command executin Background. If there is no commandFormat of SCT Status Response Currently executing in the background, this205 Byte Reserved 00h 209206 Dword 213210 Dword479214 Byte275 Reserved 00h 511480 Byte32 Vendor Specific Data Format of SCT Status ResponseSCT Command Set SCT Write Same action code 0002hSCT Write Same Inputs SCT Write Same OutputsHitachi hard disk drive specifications Outputs for Error Error Recovery Control command action code 0003h Error Recovery Control command InputsError Recovery Control command Onputs Feature Control Command action code 0004h Feature Control command InputsFeature Control command Outputs Feature Code List Feature Code State DefinitionSCT Data Table Command action code 0005h SCT Data Table command InputsSCT Data Table command Outputs Table IDByte Size Field Name Description Data Format of HDA Absolute Temperature History Table PIO Data In commands Hitachi hard disk drive specifications 100PIO Data Out commands Non-Data commandsHitachi hard disk drive specifications 101 DMA Data In commands and DMA Data Out commands First-party DMA commandsHitachi hard disk drive specifications 102 Command Set Hitachi hard disk drive specifications 103Protocol Command Code Binary Code Bit Hex Hitachi hard disk drive specifications 104 Protocol CommandCode Binary Code Bit Hex Command Set Subcommand Hitachi hard disk drive specifications 105Command code Feature Command Subcommand Hex Register Hitachi hard disk drive specifications 106 Output RegistersInput Registers Check Power Mode E5h/98h Check Power Mode Command E5h/98hHitachi hard disk drive specifications 107 Input Parameters From The DeviceConfigure Stream 51h Configure Stream Command 51hHitachi hard disk drive specifications 108 Hitachi hard disk drive specifications 109 Device Configuration Overlay B1h Device Configuration Restore Subcommand C0hDevice Configuration Overlay Command B1h Device Configuration Overlay Features register valuesDevice Configuration Freeze Lock Subcommand C1h Device Configuration Identify Subcommand C2hDevice Configuration Set Subcommand C3h Hitachi hard disk drive specifications 111Device Configuration Overlay Data structure Hitachi hard disk drive specifications 112DCO error information definition Hitachi hard disk drive specifications 113Download Microcode Command 92h Hitachi hard disk drive specifications 114Download Microcode 92h Hitachi hard disk drive specifications 115 Execute Device Diagnostic 90h Diagnostic CodeExecute Device Diagnostic Command 90h Hitachi hard disk drive specifications 116Flush Cache Command E7h Hitachi hard disk drive specifications 117Flush Cache E7h Flush Cache Ext Command EAh Hitachi hard disk drive specifications 118Flush Cache Ext EAh Format Track Command50h Hitachi hard disk drive specifications 119Format Track 50h Hitachi hard disk drive specifications 120 Output Parameters To The Device Sector NumberCylinder High/Low Format Unit Command F7h Hitachi hard disk drive specifications 121Format Unit F7h Identify Device Command ECh Hitachi hard disk drive specifications 122Identify 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 Idle Command E3h/97h Hitachi hard disk drive specifications 133Idle E3h/97h Hitachi hard disk drive specifications 134 Output Parameters To The DeviceIdle Immediate Command E1h/95h Hitachi hard disk drive specifications 135Idle Immediate E1h/95h Initialize Device Parameters Command 91h Hitachi hard disk drive specifications 136Initialize Device Parameters 91h Read Buffer Command E4h Hitachi hard disk drive specifications 137Read Buffer E4h Read DMA Command C8h/C9h Hitachi hard disk drive specifications 138Read DMAC8h/C9h Hitachi hard disk drive specifications 139 Output Parameters To The Device Sector CountRead DMA Ext Command 25h Hitachi hard disk drive specifications 140Read DMA Ext 25h Hitachi hard disk drive specifications 141 Read Fpdma Queued Command 60h Hitachi hard disk drive specifications 142Read Fpdma Queued 60h Hitachi hard disk drive specifications 143 Read Log Ext Command 2Fh Hitachi hard disk drive specifications 144Read Log Ext 2Fh Hitachi hard disk drive specifications 145 Log Address DefinitionSector Count Current Hitachi hard disk drive specifications 146 General Purpose Log DirectoryGeneral Purpose Log Directory Extended Comprehensive Smart Error log Error log versionError log index Extended Error log data structureExtended Error log data structure Command data structureHitachi hard disk drive specifications 148 Error data structure Hitachi hard disk drive specifications 149Device error count Extended Self-test log sectorSelf-test log data structure revision number Self-test descriptor indexHitachi hard disk drive specifications 151 Extended Self-test log descriptor entryExtended Self-test log descriptor entry Command Error Command Error informationHitachi 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 Access Time Array Entry Linearly Interpolated Streaming Performance logStreaming Performance Parameters log Sector Time Array Entry Linearly InterpolatedRead Multiple Command C4h Hitachi hard disk drive specifications 157Read Multiple C4h Read Multiple Ext Command 29h Hitachi hard disk drive specifications 158Read 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 Read Sectors Command 20h/21h Hitachi hard disk drive specifications 163Read Sectors 20h/21h Hitachi hard disk drive specifications 164 Read Sectors Ext Command 24h Hitachi hard disk drive specifications 165Read Sectors Ext 24h Hitachi hard disk drive specifications 166 Output Parameters To The Device Sector Count CurrentRead Stream DMA Command 2Ah Hitachi hard disk drive specifications 167Read Stream DMA 2Ah Hitachi hard disk drive specifications 168 Hitachi hard disk drive specifications 169 Read Stream PIO Command 2Bh Hitachi hard disk drive specifications 170Read Stream PIO 2Bh Hitachi hard disk drive specifications 171 Hitachi hard disk drive specifications 172 Ccto Error, bitRead Verify Sectors Command 40h/41h Hitachi hard disk drive specifications 173Read Verify Sectors 40h/41h Hitachi hard disk drive specifications 174 Read Verify Sectors Ext Command 42h Hitachi hard disk drive specifications 175Read Verify Sectors Ext 42h Hitachi hard disk drive specifications 176 Recalibrate Command 1xh Hitachi hard disk drive specifications 177Recalibrate 1xh Security Disable Password F6h Security Disable Password Command F6hHitachi hard disk drive specifications 178 Password Information for Security Disable Password command Hitachi hard disk drive specifications 179Security Erase Prepare Command F3h Hitachi hard disk drive specifications 180Security Erase Prepare F3h Security Erase Unit Command F4h Hitachi hard disk drive specifications 181Security Erase Unit F4h Hitachi hard disk drive specifications 182 Erase Unit InformationSecurity Freeze Lock Command F5h Hitachi hard disk drive specifications 183Security Freeze Lock F5h Security Set Password F1h Security Set Password Command F1hHitachi hard disk drive specifications 184 Security Set Password Information Hitachi hard disk drive specifications 185Security Unlock Command F2h Hitachi hard disk drive specifications 186Security Unlock F2h Hitachi hard disk drive specifications 187 Security Unlock InformationSeek Command 7xh Hitachi hard disk drive specifications 188Seek 7xh Sense Condition command F0h Hitachi hard disk drive specifications 189Sense Condition F0h Vendor specific for Cinemastar Input Parameters From The Device Sector CountSet Features EFh Set Features Command EFhHitachi hard disk drive specifications 190 Hitachi hard disk drive specifications 191 Set Transfer mode Serial ATA FeatureAdvanced Power Management Hitachi hard disk drive specifications 192Low Power Idle mode Low RPM standby modeHitachi hard disk drive specifications 193 Set Maximum Host Interface Sector TimeHitachi hard disk drive specifications 194 Set Max Address F9hSet Max Address F9h Hitachi hard disk drive specifications 195 Set Max Set Password Feature = 01h Set Max set PasswordSet Max Set Password data contents Hitachi hard disk drive specifications 196Set Max Lock Feature = 02h Hitachi hard disk drive specifications 197Set Max Lock Set Max Unlock Feature = 03h Hitachi hard disk drive specifications 198Set Max Unlock F9h Set Max Freeze Lock Feature = 04h Hitachi hard disk drive specifications 199Set Max Freeze Lock F9h Set Max Address Ext Command 37h Hitachi hard disk drive specifications 200Set Max Address Ext 37h Hitachi hard disk drive specifications 201 Set Multiple Command C6h Hitachi hard disk drive specifications 202Set Multiple C6h Sleep Command E6h/99h Hitachi hard disk drive specifications 203Sleep E6h/99h Smart Function Set Command B0h Hitachi hard disk drive specifications 204Smart Function Set B0h Smart Subcommand Smart Read Attribute Values Subcommand D0hSmart Read Attribute Thresholds Subcommand D1h Smart Enable/Disable Attribute Autosave Subcommand D2hSmart Save Attribute Values Subcommand D3h Smart Execute Off-line Immediate Subcommand D4hHitachi hard disk drive specifications 206 Smart Read Log Sector Subcommand D5h Smart Write Log Sector Subcommand D6hSmart Enable Operations Subcommand D8h Hitachi hard disk drive specifications 207Smart Disable Operations Subcommand D9h Smart Return Status Subcommand DahSmart Enable/Disable Automatic Off-Line Subcommand DBh Hitachi hard disk drive specifications 208Hitachi hard disk drive specifications 209 Device Attributes Data StructureData Structure Revision Number Device Attribute Data StructureHitachi hard disk drive specifications 210 Individual Attribute Data StructureIndividual Attribute Data Structure Attribute NameHitachi hard disk drive specifications 211 Off-Line Data Collection StatusStatus Flag Definitions Bit Definition Bit 7 Automatic Off-Line Data Collection StatusHitachi hard disk drive specifications 212 Self-test execution statusOff-Line Data Collection Capability Error Logging Capability Smart CapabilitySelf-test failure check point Self-test completion timeDevice Attribute Thresholds Data Structure Individual Thresholds Data StructureAttribute ID Numbers Attribute ThresholdHitachi hard disk drive specifications 215 Smart Log DirectorySmart Log Directory Smart summary error log sector Smart error log versionSmart summary error log sector Hitachi hard disk drive specifications 216Error log data structure Error log data structureHitachi hard disk drive specifications 217 Hitachi hard disk drive specifications 218 Hitachi hard disk drive specifications 219 Self-test log data structureSelf-test log data structure Feature flags Selective self-test feature flagsHitachi hard disk drive specifications 220 Selective self-test log data structureError Reporting Smart Error CodesHitachi hard disk drive specifications 221 Standby Command E2h/96h Hitachi hard disk drive specifications 222Standby E2h/96h Hitachi hard disk drive specifications 223 Standby Immediate Command E0h/94h Hitachi hard disk drive specifications 224Standby Immediate E0h/94h Write Buffer Command E8h Hitachi hard disk drive specifications 225Write Buffer E8h Write DMA Command Cah/CBh Hitachi hard disk drive specifications 226Write DMA Cah/CBh Hitachi hard disk drive specifications 227 Write DMA FUA Ext Command 3Dh Hitachi hard disk drive specifications 228Write DMA FUA Ext 3Dh Hitachi hard disk drive specifications 229 Write DMA Ext Command 35h Hitachi hard disk drive specifications 230Write DMA Ext 35h Hitachi hard disk drive specifications 231 Write Fpdma Queued Command 61h Hitachi hard disk drive specifications 232Write Fpdma Queued 61h Hitachi hard disk drive specifications 233 Write Log Ext Command 3Fh Hitachi hard disk drive specifications 234Write Log Ext 3Fh Hitachi hard disk drive specifications 235 Write Multiple Command C5h Hitachi hard disk drive specifications 236Write Multiple C5h Hitachi hard disk drive specifications 237 Write Multiple Ext Command 39h Hitachi hard disk drive specifications 238Write 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 Write Sectors Command 30h/31h Hitachi hard disk drive specifications 242Write Sectors 30h/31h Hitachi hard disk drive specifications 243 Write Sectors Ext Command 34h Hitachi hard disk drive specifications 244Write Sectors Ext 34h Hitachi hard disk drive specifications 245 Write Stream DMA Command 3Ah Hitachi hard disk drive specifications 246Write Stream DMA 3Ah Hitachi hard disk drive specifications 247 WC bit6Bit5 Hitachi hard disk drive specifications 248 Write Stream PIO Command 3Bh Hitachi hard disk drive specifications 249Write Stream PIO 3Bh Hitachi hard disk drive specifications 250 Hitachi hard disk drive specifications 251 Write Uncorrectable Ext Command 45h Hitachi hard disk drive specifications 252Write 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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