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Fujitsu MHV2100BH, MHV2120BH, MHV2080BH, MHV2040BH, MHV2060BH manual Invalidating caching-target data

Models: MHV2100BH MHV2040BH MHV2120BH MHV2060BH MHV2080BH

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6.4 Read-ahead Cache

(3) Invalidating caching-target data

Data that is a target of caching on the data buffer is invalidated under the following conditions:

1)-1 Any command other than the following commands is issued. (All caching- target data is invalidated.)

READ BUFFER

WRITE BUFFER

RECALIBRATE

FORMAT TRACK

SET FEATURES

SECURITY ERASE UNIT

DEVICE CONFIGURATION

DOWNLOAD MICROCODE

UNSUPPORT COMMAND (INVALID COMMAND) 1)-2 Commands that partially invalidate caching data

READ DMA/READ MULTIPLE/READ SECTOR(S)

READ DMA EXT/READ MULTIPLE EXT/READ SECTOR(S) EXT

READ FP DMA QUEUED

WRITE DMA/WRITE MULTIPLE/WRITE SECTOR(S)

WRITE DMA EXT/WRITE MULTIPLE EXT/WRITE SECTOR(S) EXT

WRITE DMA FUA EXT/WRITE MULTIPLE FUA EXT

WRITE FP DMA QUEUED

SMART

2)A COMRESET is issued or the power is turned off.

3)When HOST CRC ERROR has occurred.

C141-E224

6-15

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Fujitsu MHV2100BH, MHV2120BH, MHV2080BH, MHV2040BH, MHV2060BH manual Invalidating caching-target data

Contents

Disk Drives Product Manual MHV2120BH, MHV2100BH, MHV2080BH MHV2060BH, MHV2040BH Handling of This Manual For Safe Operation Revision History This page is intentionally left blank Overview of Manual Preface Conventions Conventions for Alert MessagesOperating Environment Liability Exception This page is intentionally left blank Important Alert Messages Important Alert Items This page is intentionally left blank Disk Drives Product Manual Disk Drives Maintenance ManualManual Organization This page is intentionally left blank Contents Theory of Device Operation Device ConfigurationInstallation Conditions Interface Contents Xii C141-E224 104 IN-1 OperationsGL-1 Acronyms and Abbreviations AB-1 Figures Illustrations Response to power-on Examples of model names and product numbers Tables 133 Device Overview Adaptability FeaturesFunctions and performance Connection to Sata interface Error correction and retry by ECCLow noise and vibration High resistance against shock Specifications 1/2 Device SpecificationsSpecifications summary Examples of model names and product numbers Model and product number Slope of an input voltage at rise Power RequirementsInput Voltage Ripple Negative voltage at +5 V when power is turned off Current and power dissipation Current Requirements and Power Dissipation Environmental specifications Environmental SpecificationsCurrent fluctuation Typ. at +5 V when power is turned on Power on/off sequence Shock and Vibration Acoustic noise specificationShock and vibration specification Acoustic Noise Mean time to repair Mttr Service lifeData assurance in the event of power failure Media Defects Error RateUnrecoverable read error Positioning error Recommended power-off sequence Advanced Power Management APM Advanced Power Management Device-initiated interface power management Dipm Interface Power Management IPMHost-initiated interface power management Hipm Restriction of Use of Hazardous Substances Interface power management Device Configuration Device Configuration Read/write circuit System ConfigurationSata interface Drive connection This page is intentionally left blank Installation Conditions Dimensions Dimensions Orientation MountingIntegration Guidance C141-E144 PCA FrameLimitation of mounting Location of breather Ambient temperature Handling cautions Service area Hios ESDSumitomo 3M Connections with Host System Device connector Recommended connector specifications for the host system Connector specifications for host systemSignal segment and power supply segment Sata interface cable connection This page is intentionally left blank Theory of Device Operation Spindle OutlineSubassemblies Disk Spindle motor driver circuit Circuit ConfigurationAir filter Servo circuit Power supply configuration PCA Power-on operation sequence Power-on Sequence Self-calibration Self-calibration contents Execution timing of self-calibration Command processing during self-calibration Write precompensation Read/write CircuitRead/write preamplifier PreAMP Write circuit Programmable filter circuit Read circuitAGC circuit Viterbi detection circuit Digital PLL circuitFIR circuit D converter circuit Servo control circuit Servo Control A converter DAC Power amplifierMicroprocessor unit MPU Servo burst capture circuit VCM current sense resistor CSR Driver circuit Outer guard band Data-surface servo formatInner guard band Data area Physical sector servo configuration on disk surface Servo frame format Track following operation Actuator motor controlOperation to move the head to the reference cylinder Seek operation Spindle motor control Start modeAcceleration mode Stable rotation mode This page is intentionally left blank Interface Physical Interface Interface signals 5VDC/GND Comreset / CominitComwake Out of band signaling Signal interface regulation Pmack AlignCont EOF SOF RIPROK Rrdy FER Electrical specificationsPhysical Layer Electrical Requirements 1/3 Physical Layer Electrical Requirements 2/3 Physical Layer Electrical Requirements 3/3 Connector pinouts Connector pinouts Requirements for P11 as an output pin 5 P11 functionStaggered Spin-up Driving Ready LED Example of the circuit for driving Ready LED Hot Plug Logical Interface Conceptual diagram of communication layers Transport layer Communication layersPhysical layer Link layer Shadow Block Register Outline of the Shadow Block Register Register Host to Device FIS layout Outline of the frame information structure FISFIS types Register Host to Device DMA Active Device to Host Register Device to Host TAG DMA Setup Device to Host or Host to Device Bidirectional Bist combinations Bist Active Bidirectional Data FIS Bidirectional layout PIO Setup Device to HostData Host to Device or Device to Host Bidirectional Interface 11 Set Device Bits FIS Set Device Bits Device to Host Sfrr Error FieldShadow block registers UNC Cylinder Low Field exp Features Field expSector Count Field exp Sector Number Field exp HS3 Cylinder High Field expDevice/Head Field HS3 HS2 HS1 HS0 Bit 7 Busy BSY bit Bit Device Write Fault DF bitBit Error ERR bit Status field EStatus Field Command FieldBit 2 Software Reset Srst Device Control Field Command code and parameters 1/3 Host CommandsCommand code and parameters Command code and parameters 2/3 Command code and parameters 3/3 Command descriptions Recalibrate X’10’ to X’1F’ Error reporting conditions Read Sectors X’20’ or X’21’ LBA LBA LSB Write Sectors X’30’ or X’31’ 00 *1 Error information Write Verify X’3C’ Host Commands Read Verify Sectors X’40’ or X’41’ Host Commands Seek X’70’ to X’7F’ Diagnostic code Execute Device Diagnostic X’90’ Initialize Device Parameters X’91’ Operation of Download Microcode Download Microcode X’92’ Error reporting conditions Standby Immediate X’94’ or X’E0’ Interface Unload Feature Unload Immediate Command Standby X’96’ or X’E2’ Idle X’97’ or X’E3’ Interface ’FF’ Check Power Mode X’98’ or X’E5’ Sleep X’99’ or X’E6’ Comreset Smart X’B0’ 10 Features Field values subcommands and functions 1/3 Smart Read LOG 10 Features Field values subcommands and functions 2/3Smart Enable Operations Smart Disable Operations ’DA’ Smart Return Status 10 Features Field values subcommands and functions 3/3’DB’ Smart ENABLE/DISABLE Auto OFF-LINE Key C2h 1FF 12 Format of guarantee failure threshold value data11 Format of device attribute value data Attribute ID Data format version number Raw attribute value Status FlagCurrent attribute value Attribute value for the worst case so far 14 Self-test execution status 13 Off-line data collection statusSelf-test execution status 16 Failure prediction capability flag 17 Drive error logging capability15 Off-line data collection capability 18 Log Directory Data Format Guarantee failure thresholdSmart error logging Checksum 19 Data format of Smart Summary Error Log 1/2 Total number of drive errors 19 Data format of Smart Summary Error Log 2/2Command data structure Error data structure Smart Self-Test 20 Data format of Smart Comprehensive Error Log Self-test index Self-test number Current LBA under test 22 Selective self-test log data structureTest Span Selective Self-test pending time min Feature Flags23 Selective self-test feature flags Current Span under test Device Configuration Identify Device Configuration XB1Device Configuration Restore Device Configuration Freeze Device Configuration Freeze Lock Features Field = C1h Device Configuration Restore Features Field = C0h Device Configuration SET Features Field = C3h Device Configuration Identify Features Field = C2h Word Value Content 24 Device Configuration Identify data structure 1/2 24 Device Configuration Identify data structure 2/2 Read Multiple X’C4’ 12 Execution example of Read Multiple command LBA LSB Write Multiple X’C5’ At command issuance Shadow Block Registers setting contents SET Multiple Mode X’C6’ Host Commands Read DMA X’C8’ or X’C9’ LBA Write DMA X’CA’ or X’CB’ Host Commands Read Buffer X’E4’ Flush Cache X’E7’ Write Buffer X’E8’ Identify Device X’EC’ Identify Device DMA X’EE’ ’3FFF’ 25 Information to be read by Identify Device command 1/3 25 Information to be read by Identify Device command 2/3 MHV2120BH MHV2100BH MHV2080BH MHV2060BH MHV2040BH ’3FFF’ 25 Information to be read by Identify Device command 3/3 Interface Command without interrupt supports 2, 4, 8 and 16 sectors Interface Host Commands Interface Host Commands Device always returns the fixed value indicated on the left Host Commands 26 Features field values and settable modes 1/2 SET Features X’EF’ 26 Features field values and settable modes 2/2 Data Transfer Mode Advanced Power Management APM Serial ATA Functions Automatic Acoustic Management AAM 27 Contents of Security SET Password data Error reporting conditions Security UNLOCKX’F2’ When the master password is selectedWhen the user password is selected Host Commands Security Erase Prepare X’F3’ Security Erase Unit X’F4’ Security Freeze Lock X’F5’ Error reporting conditions 29 Contents of security password Error reporting conditions Lbalsb Read Native MAX Address X’F8’ SET MAX Address SET MAX X’F9’ SET MAX SET Password Features Field = 01h Password information SET MAX Lock Features Field = 02h SET MAX Unlock Features Field = 03h SET MAX Freeze Lock Features Field = 04h Read Sector S EXT X’24’ Description Read DMA EXT X’25’ Description Read Native MAX Address EXT X’27’ Read Multiple EXT X’29’ Read LOG EXT X2F Sector offset 31 Tag field information 30 Data format of Read Log Ext log page 10h 33 Counter Identifier information 32 Data format of Read Log Ext log page 11h Write Sector S EXT X’34’ Description Write DMA EXT X’35’ Description SET MAX Address EXT X’37’ SET MAX LBA Write Multiple EXT X’39’ Write LOG EXT X3F Error information C141-E224 Read Verify Sector S EXT X’42’ Flush Cache EXT X’EA’ Write Multiple FUA EXT XCE Write DMA FUA EXT X3D Read FP DMA Queued Write FP DMA Queued Sfrw Sfrr Error posting34 Command code and parameters 1/2 Command Name DWF 34 Command code and parameters 2/2TK0NF Data Command ProtocolNon-data command protocol Execute Device Diagnostic Initialize Device Parameters Host PIO data-in command protocol 14 PIO data-in command protocol PIO data-out command protocol 15 PIO data-out command protocol Read DMA EXT Identfy Device Identfy Device DMA DMA data-in command protocol Write DMA EXT FUA EXT DMA data-out command protocol Read FP DMA Queued Write FP DMA Queued Native Command Queuing protocol 18 Read FP DMA Queued command protocol 19 Write FP DMA Queued command protocol 20 Power-on sequence Power-on and Comreset 21 Comreset sequence This page is intentionally left blank Operations Response to power-on Reset and Diagnosis Reset and Diagnosis Response to Comreset Response to Comreset Comreset preservation requirements Software settings preservation SET Address MAX EXT Response to a software reset Response to a software reset Active idle mode Power SavePower save mode Active mode Sleep mode Standby mode Power commands Partial mode Power Save Controlled by Interface Power Management IPMPower save mode of the interface Slumber mode MB buffer Read-ahead CacheData buffer structure Data that is a target of caching Commands that are targets of cachingCaching operation Invalidating caching-target data Miss-hit Using the read segment buffer Full hit Sequential hit HAP end location of the previous read command Partial hit Invalidation of cached data Command that are targets of cachingWrite Cache Cache operation Enabling and disabling Status report in the event of an errorComreset and software reset response Cashing function when power supply is turned on This page is intentionally left blank Glossary PIO Programmed input-output Power save modeHost receptacle Master Device Slave Device Rotational delaySeek time Serial-ATA This page is intentionally left blank Acronyms and Abbreviations This page is intentionally left blank Caching Index Index Example of model name and product Mean time between failure Mtbf 4-3 Read Native MAX Address Status, off-line data collection Japan Comment Form This page is intentionally left blank C141-E224-02EN MHV2120BH, MHV2100BH, MHV2080BH, MHV2060BH, MHV2040BHPage