Samsung M9T manual Security Unlock F2h, Seek 7xh, Set Features EFh

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Table 8-10 Identifier and security level bit interaction

 

 

 

 

 

Identifier

Level

Command result

 

User

High

The password supplied with the command shall be saved as the

 

 

new User password. The Lock mode shall be enabled

from the

 

 

next power-on or hardware reset. The device shall then be

unlocked

 

 

by either the User password or the previously set Master password.

 

 

 

User

Medium

The password supplied with the command shall be saved as the

 

 

new User password. The

Lock mode shall be enabled

from the

 

 

next power-on or hardware

reset. The device shall then be

unlocked

 

 

by only the User password. The Master password previously set is

 

 

still stored in the device but shall not be used to unlock the device.

 

 

 

Master

High or

Maximum This combination shall set a Master password but shall

 

Medium

not enable or disable the Lock mode. The security level is not

 

 

changed. Master password revision code set to the value in Master

 

 

Password Revision Code field.

 

 

 

 

 

 

8.2.27 Security Unlock (F2h)

This command transfers 512 bytes of data from the host. If the Identifier bit is set to Master and the device is in high security level, then the password supplied shall be compared with the stored Master password. If the device is in maximum security level then the unlock shall be rejected.

If the Identifier bit is set to the user then the device needs to compare the supplied password with the stored User password.

If the password compare fails then the device shall return command aborted to the host and decrements the unlock counter. This counter shall be initially set to five and shall be decremented for each password mismatch when SECURITY UNLOCK is issued and the device is locked. When this counter reaches zero then SECURITY UNLOCK and SECURITY ERASE UNIT commands shall be command aborted until a power-on reset or a hardware reset. SECURITY UNLOCK commands issued when the device is unlocked have no effect on the unlock counter.

8.2.28 Seek (7xh)

This command has become obsolete in the ATA7 specification. The supporting of this command is just for backward compatibility purpose.

8.2.29 Set Features (EFh)

This command is used by the host to establish the following parameters, which affect the execution of certain drive features as shown below.

Spinpoint M9T Product Manual REV 1.0

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Contents M9T Product Manual Page Table of Contents Iii Read Fpdma Queued 60h Read Log Extended 2Fh Read Long 22h Table of Tables Manual Organization ScopeUser Definition Reference SataIntroduction DescriptionKey Features Hardware Requirements Standards and RegulationsSpecification Summary SpecificationsLogical Configurations Physical SpecificationsPerformance Specifications Power consumption Power consumptionPower Requirements RatedEnvironmental Specifications Environmental SpecificationsLinear Shock 1/2 sine pulse Rotational ShockReliability Specifications Space Requirements InstallationMounting Unpacking InstructionsOrientation Mounting DimensionsSata Connectivity Cable ConnectorsVentilation Computer mainboard or Serial ATA host adapter Management PowerHDD Power, Sata Interface, and Factory Jumper Connector SATA-Bus Interface ConnectorDC Power Connector and SATA-Bus Interface Cable Connections Drive InstallationBase Casting Assembly Head / Disk Assembly HDADC Spindle Motor Assembly Disk Drive OperationExploded Mechanical View Head Stack Assembly Disk Stack AssemblyVoice Coil Motor and Actuator Latch Assemblies Air Filtration SystemDisk Controller Digital Signal Process and Interface ControllerDrive Electronics DDR Buffer Control Block Host Interface Control BlockFrequency Synthesizer Disk Control BlockDisk Ldpc Control Block Read/Write IC Power ManagementTime Base Generator Automatic Gain ControlAnalog to Digital Converter ADC and FIR Analog Anti-Aliasing Low Pass FilterRead Channel Servo SystemRead and Write Operations Read Caching Firmware FeaturesWrite Channel Write Caching Automatic Defect Allocation Defect ManagementSmart 6 APMSata Terminology Sata II InterfaceSpinpoint M9T Product Manual REV Signal Descriptions Physical Interface Signal Summary2 I/O Register Address When read When writtenControl Block Register Descriptions RegistersCommand Block Register Descriptions Device Register Ex F6h Command Register Ex F7hStatus Register Ex F7h Device Activity Signal Sata II Feature SETStaggered Spin-up Disable Control Auto-Activate in DMA Setup FISPhy Event Counters Sata Power Management Software Settings PreservationCommand Code Parameters ATA Command DescriptionsCommand Table Smart Check Power Mode E5h Command DescriptionsDevice Configuration Overlay B1h Download Micro Code 92hDevice Configuration Identify data structure Word Content Diagnostic Codes Execute Device Diagnostics 90hFlush Cache E7h, EAh extended Format Track 50hIdentify Device information Content Description=the fields reported in word 88 are valid EXT =Media Card Pass Through command feature set supported WWN Word Content DescriptionIdle Immediate E1h Automatic Standby Timer PeriodsIdle E3h NOP 00h Initialize Device Parameters 91hRead Buffer E4h Read DMA C8h, 25h extendedRead Long 22h Read Multiple Command C4h, 29h extendedRead Log Extended 2Fh Read Verify Sectors 40h, 41h extended Read Native Max Address F8h, 27h extendedRead Sectors 20h, 24h extended Recalibrate 10h Security Disable Password F6hSecurity Erase Prepare F3h Security Erase Unit F4hSecurity Erase Unit Password Word Content Security Set Password F1hSecurity Set Password data content Security Freeze Lock F5hSeek 7xh Set Features EFhSecurity Unlock F2h 12 Transfer Mode Values 11 Set Features Register Definitions13 Set Max Feature Register Values Set Multiple Mode C6hSet Max Address F9h, 37h extended Sleep E6hSmart disable operations D9h 14 Smart Feature Registers ValuesSmart enable/disable attribute auto-save D2h Smart B0hSmart execute off-line immediate D4h Smart enable operations D8h15 Device Smart Data Structure Smart read data D0hByte 16 Smart Attribute Status Flags Bit Name Description18 Off-line Data Collection Status Values 17 Smart Attribute Data List19 Self-test Execution Status Values Self-test execution status byteSmart write log sector D6h Smart read log sector D5hSmart return status DAh Write Buffer E8h Standby Immediate E0hWrite DMA CAh, 35h extended Write Fpdma Queued 61hWrite Sectors 30h, 34h extended Write Multiple Command C5h, 39h extendedSpinpoint M9T Product Manual REV General Information MaintenanceMaintenance Precautions HDD handling guide -Please handle HDD by side surfaces HDD handling guide Prevent Shocks Service and Repair
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