Manuals / Fujitsu / Computer Equipment / Computer Drive

Fujitsu MHT2040BH, MHT2060BH, MHT2080BH manual Contents of security password

Models: MHT2080BH MHT2060BH MHT2040BH

1 264

Download 264 pages 35.52 Kb

Page 184

Interface

(36) SECURITY DISABLE PASSWORD (X’F6’)

This command invalidates the user password already set and releases the lock function.

The host transfers the 512-byte data shown in Table 5.28 to the device. The device compares the user password or master password in the transferred data with the user password or master password already set, and releases the lock function if the passwords are the same.

Although this command invalidates the user password, the master password is retained. To recover the master password, issue the SECURITY SET PASSWORD command and reset the user password.

If the user password or master password transferred from the host does not match, the Aborted Command error is returned.

Issuing this command while in LOCKED MODE or FROZEN MODE returns the Aborted Command error.

(The section about the SECURITY FREEZE LOCK command describes LOCKED MODE and FROZEN MODE.)

Table 5.28 Contents of security password

Word			Contents

0		Control word
		Bit 0: Identifier
		0	= Compares the user passwords.
		1	= Compares the master passwords.
		Bits 1 to 15: Reserved

1 to	16	Password (32 bytes)

17 to	255	Reserved

5-110

C141-E203-01EN

Image 184

Fujitsu MHT2040BH, MHT2060BH, MHT2080BH manual Contents of security password

Contents

MHT2080BH, MHT2060BH, MHT2040BH Disk Drives Product ManualFor Safe Operation Handling of This ManualRevision History This page is intentionally left blank Preface Overview of ManualOperating Environment Conventions for Alert MessagesConventions Liability Exception This page is intentionally left blank Important Alert Items Important Alert MessagesThis page is intentionally left blank Manual Organization MHT2040BH Disk Drives Maintenance ManualMHT2040BH Disk Drives Product Manual This page is intentionally left blank Contents Installation Conditions Theory of Device OperationInterface 102 Operations Acronyms and Abbreviations AB-1 GL-1IN-1 Illustrations FiguresResponse to power-on when the host is powered Recommended connector specifications for the host system TablesRelationship between combination of Identifier and Security Device Overview Functions and performance FeaturesAdaptability Interface Device Specifications Specifications summarySpecifications 1/2 MHT2080BH MHT2060BH MHT2040BHSpecifications 2/2 Model and product numberMHT2080BH Examples of model names and product numbersInput Voltage Power RequirementsRipple Current Requirements and Power Dissipation Current and power dissipationEnvironmental Specifications Current fluctuation Typ. at +5 V when power is turned onPower on/off sequence Environmental specificationsAcoustic noise specification Shock and vibration specificationAcoustic Noise Shock and VibrationService life Data assurance in the event of power failureReliability Mean time between failures MtbfError Rate Unrecoverable read errorPositioning error Media DefectsAdvanced Power Management Advanced power management Host-initiated Interface Power Management Hipm Interface Power Management IPMDevice-initiated Interface Power Management Dipm Interface power management This page is intentionally left blank Device Configuration Device Configuration System Configuration Sata interfaceDrive connection Read/write circuitThis page is intentionally left blank Installation Conditions Dimensions DimensionsIntegration Guidance C141-E144 MountingOrientation Limitation of mounting FramePCA Location of breather Ambient temperature Service area Handling cautionsSumitomo 3M ESDHios Device connector Connections with Host SystemSignal segment and power supply segment Connector specifications for host systemRecommended connector specifications for the host system Sata interface cable connection This page is intentionally left blank Theory of Device Operation Outline SubassembliesDisk SpindleCircuit Configuration Air filterServo circuit Spindle motor driver circuitPower Supply Configuration PCA Power-on Sequence Power-on operation sequenceSelf-calibration contents Self-calibrationCommand processing during self-calibration Execution timing of self-calibrationRead/write Circuit Read/write preamplifier PreAMPWrite circuit RLL code MeeprmlAGC circuit Read circuitProgrammable filter circuit Digital PLL circuit FIR circuitD converter circuit Viterbi detection circuitServo control circuit Servo ControlMicroprocessor unit MPU Power amplifier Servo burst capture circuitA converter DAC Spindle motor control circuitData-surface servo format Inner guard band IGBData area Outer guard band OGBPhysical sector servo configuration on disk surface Servo frame format Actuator motor control Operation to move the head to the reference cylinderSeek operation Track-following operationAcceleration mode Start modeSpindle motor control Stable rotation mode This page is intentionally left blank Interface Interface signals Physical InterfaceComwake Comreset / Cominit5VDC/GND Signal interface regulation Out of band signalingPrimitives descriptions Electrical specifications Physical Layer Electrical Requirements 1/2Physical Layer Electrical Requirements 2/2 COMRESET/COminit Connector pinouts Connector pinoutsConceptual diagram of communication layers Logical InterfaceCommunication layers Physical layerLink layer Transport layerOutline of the Shadow Block Register Shadow Block RegisterOutline of the frame information structure FIS FIS typesRegister Host to Device Register Host to Device FIS layoutRegister Device to Host DMA Active Device to HostDMA Setup Device to Host or Host to Device Bidirectional TAGBist Active Bidirectional Bist combinationsData Host to Device or Device to Host Bidirectional Data FIS Bidirectional layoutShadow block registers Error FieldUNC Features Field exp Sector Count Field expSector Number Field exp Cylinder Low Field expCylinder High Field exp Device/Head FieldHS3 HS2 HS1 HS0 HS3Bit Device Write Fault DF bit Bit Error ERR bitStatus field Bit 7 Busy BSY bitCommand Field Bit 2 Software Reset SrstDevice Control Field EStatus FieldCommand code and parameters Host CommandsCommand code and parameters 1/3 Command code and parameters 2/3 Command code and parameters 3/3 Command descriptions Error reporting conditions Recalibrate X’10’ to X’1F’Read Sectors X’20’ or X’21’ LBA LSB LBARead Long X’22’ or X’23’ Write Sectors X’30’ or X’31’ 00 *1 Error information Write Long X’32’ or X’33’ Cylinder No. LSB Write Verify X’3C’ Host Commands Read Verify Sectors X’40’ or X’41’ Host Commands Seek X’70’ to X’7F’ Execute Device Diagnostic X’90’ Diagnostic codeInitialize Device Parameters X’91’ Download Microcode X’92’ Operation of Download MicrocodeError reporting conditions Standby Immediate X’94’ or X’E0’ Idle Immediate X’95’ or X’E1’ Standby X’96’ or X’E2’ Idle X’97’ or X’E3’ Host Commands Check Power Mode X’98’ or X’E5’ ’FF’Comreset Sleep X’99’ or X’E6’Smart X’B0’ Features Field values subcommands and functions 1/3 Features Field values subcommands and functions 2/3 Smart Enable OperationsSmart Disable Operations Smart Read LOG’DB’ Smart ENABLE/DISABLE Auto OFF-LINE Features Field values subcommands and functions 3/3Smart Return Status Key C2h 10 Format of device attribute value data 11 Format of guarantee failure threshold value data1FF Data format version number Attribute IDStatus Flag Current attribute valueAttribute value for the worst case so far Raw attribute valueSelf-test execution status 12 Off-line data collection status13 Self-test execution status 14 Off-line data collection capability 16 Drive error logging capability15 Failure prediction capability flag Guarantee failure threshold Smart error loggingChecksum 17 Log Directory Data Format18 Data format of Smart Summary Error Log 1/2 18 Data format of Smart Summary Error Log 2/2 Command data structureError data structure Total number of drive errors19 Data format of Smart Comprehensive Error Log Smart Self-Test20 Smart self-test log data format 1FCSelf-test number Self-test indexTest Span 21 Selective self-test log data structureCurrent LBA under test Feature Flags 22 Selective self-test feature flagsCurrent Span under test Selective Self-test pending time minDevice Configuration XB1 Device Configuration RestoreDevice Configuration Freeze Device Configuration IdentifyDevice Configuration Restore Features Field = C0h Device Configuration Freeze Lock Features Field = C1hDevice Configuration Identify Features Field = C2h Device Configuration SET Features Field = C3h23 Device Configuration Identify data structure Word Value ContentRead Multiple X’C4’ 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’ 24 Information to be read by Identify Device command 1/3 ’3FFF’24 Information to be read by Identify Device command 2/3 24 Information to be read by Identify Device command 3/3 Interface Bit 0 Reserved C141-E203-01EN FIS Host Commands Word Bit Bit 0 1 = Supports the Mode C141-E203-01EN Interface SET Features X’EF’ 25 Features field values and settable modes 1/225 Features field values and settable modes 2/2 Data Transfer Mode Advanced Power Management APM Serial ATA Functions Automatic Acoustic Management AAM26 Contents of Security SET Password data Error reporting conditions When the user password is selected When the master password is selectedSecurity UNLOCKX’F2’ Host Commands Security Erase Prepare X’F3’ Security Erase Unit X’F4’ Security Freeze Lock X’F5’ Error reporting conditions 28 Contents of security password Error reporting conditions Read Native MAX Address X’F8’ LbalsbSET MAX X’F9’ SET MAX AddressSET 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 CL EXP Read Sector S EXT X’24’ DescriptionSN EXP Read DMA EXT X’25’ Description Read Native MAX Address EXT X’27’ Read Multiple EXT X’29’ Read LOG EXT X2F CL EXP SN EXP 29 Data format of Read Log Ext log page 10h 30 Tag field informationWrite 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 132 C141-E203-01EN 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 Error posting 31 Command code and parameters 1/2Command Name Sfrw Sfrr31 Command code and parameters 2/2 Non-data command protocol Command ProtocolExecute Device Diagnostic Initialize Device Parameters Host PIO data-in command protocol PIO data-out command protocol Piosu Data12 PIO data-out command protocol PiosuDMA data-in command protocol Read DMA EXT Identfy DMADMA data-out command protocol Write DMA EXT FUA EXTNative Command Queuing protocol Read FP DMA Queued Write FP DMA Queued15 Read FP DMA Queued command protocol 16 Write FP DMA Queued command protocol Power-on and Comreset 17 Power-on sequence18 Comreset sequence Operations Reset and Diagnosis Response to power-onReset and Diagnosis Response to Comreset Response to ComresetResponse to a software reset Response to a software resetPower Save Power save modeActive mode Active idle modeStandby mode Sleep modePower commands Power save mode of the interface Interface Power SavePartial mode Slumber mode Data buffer structure Read-ahead Cache8MB buffer Caching operation Commands that are targets of cachingData that is a target of caching Invalidating caching-target data Using the read segment buffer Miss-hitSequential hit Full hitHAP end location of the previous read command Partial hit Command that are targets of caching Write CacheCache operation Invalidation of cached dataStatus report in the event of an error Comreset and software reset responseCashing function when power supply is turned on Enabling and disablingThis page is intentionally left blank Glossary Power save mode Rotational delayPIO Programmed input-output PositioningAcronyms and Abbreviations This page is intentionally left blank Block diagram IndexIndex Device-initiated interface power Frame information structure FIS Moving head to reference cylinder .4-13 Read Native MAX Address RLL algorithm run length limitedSensing and compensating for IN-8 C141-E203-01EN Disk Drives Product Manual Comment FormJapan This page is intentionally left blank C141-E203-01EN This page is intentionally left blank