Error Recovery | Maxtor 10K V instruction

6.12.3Host Diagnostics

The Host Processor can command the drive to perform diagnostic tests and report status using RECEIVE and SEND DIAGNOSTIC RESULTS commands. Certain parameters can be sent to the drive to alter or enhance the performance of the diagnostic tests specified.

6.12.4Log Sense

Maxtor implements multiple LOG SENSE pages which logically group together parameters related to disk and subsystem activities. Monitoring this data enables users to observe drive performance and possibly predict failures.

6.13ERROR RECOVERY

The mode pages control all error recovery. Any error recovery that is enabled is attempted without host intervention.

6.13.1Seek Error Recovery

Seek error recovery is automatic if the hardware is physically able to position to the correct track.

6.13.2Data Read Errors

Data read errors are recovered, if possible, by one or more of the following methods:

•Correction of the data “on-the-fly” with ECC hardware.

•Re-try the operation.

•Reload read channel registers to calibrated values.

•Off-track Recovery. Use different off-track offsets and re-try.

•Use a fixed gain while retrying.

•Margin servo thresholds to facilitate seek and detent.

•Margin the error tolerance of sync mark detection.

•Force sync mark detection while retrying.

•Skip Sector Rereads. Retries, each without one of eight earlier servo blocks.

•Correction of the bad data with the software ECC algorithm.

•Switching the bias current of the MR head between retries.

•TA baseline compensation, and other TA recovery methods.

6.13.3Reallocation of Bad Blocks

Most of the spare blocks are located on the inner cylinders of the drive. All defective blocks are in-line spared at the factory or at format time. Some spare blocks are

Maxtor Atlas 10K V 6-7

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Maxtor 10K V manual Error Recovery

Contents

Maxtor Atlas 10K Product Manual UL/CSA/VDE/TUV Before You Begin Regulatory Statements Table of Contents Specifications Page Feature Descriptions Negotiated Rate Information page Reference List of Figures List of Tables Command Support Data Page Command or Operation Codes Persistent Reservation in Command Descriptor 114 Persistent Reservation OUT Command Descriptor 106 136 Audience Manual Organization About this Manual Asic Terminology and Conventions References Mode Select Product Overview KEY Features Maxtor Atlas 10K Reliability Regulatory Compliance Standards Product EMI/EMC Qualifications Hardware Requirements Handling SAFETY, HANDLING, & Electrostatic Discharge ProtectionSafety Precautions Electrostatic Discharge ESD Protection Space Requirements Shows The Mechanical Dimensions of the drives Unpacking Instructions Shock Feet 2Drive Packing Assembly Jumper Options on the 68-Pin Wide PCB Configuration Jumpers and ConnectionsHardware Options Pin Power Connector Pin Option Pin Scsi Scsi ID Maxtor Atlas 10K V drives have three Spin Up modes SCA-2 80-Pin Connector Versions 4Pin Locations on SCA-2 Connector Location on SCA Connector Staggerspin Delayspin Shows the various connector styles Interface Connector J1 Maxtor Atlas 10K V Signal Name Connector Contact Number Cable Conductor 1 68-Pin Wide Scsi Connector LVD 580-Pin SCA-2 LVD Pin Assignments 2 80-Pin SCA-2 Scsi Connector LVDPIN Connector Contact Signal Name Cable Conductor Number 2.1 80-Pin SCA-2 Mating Connectors 668-Pin Wide Single-Ended Pin Assignments 3 68-Pin Wide Single-Ended Scsi Connector 4 80-Pin SCA-2 Single-Ended Scsi Connector Orientation Drive Mounting and Installation 7Mounting Screw Clearance for Maxtor Atlas 10K V Drive Mounting Screw Clearance Ventilation Mounting 9Crosswise Airflow Cooling Specification Summary Specifications Scsi ‘Hard’ Reset Time6 Ms typical Formatted Capacity Data Transfer Rates Timing Specifications Power Reset Limits PowerPower Sequencing Operation Drive Power Dissipation Acoustic Toned Quality Acoustics Environmental Conditions Mechanical 1 EMI/RFI Susceptibility Electromagnetic Conditions2 ESD Sensitivity to Magnetic Fields Reliability Disk Errors9Error Rates Overview of the Scsi Command Descriptions Send Diagnostic Receive Diagnostic ResultsPersistent Reservation OUT Read BufferPage Bit Byte Command Descriptor BlockDescription MSB Indicate the number of sectors to be transferred Field Description Naca Status Definition Meaning Status/Error ReportingLinked Commands Page 8DATA-Phase Command Contents Data Transfer Command Components Read Defect DiagnosticReassign Blocks Receive Common Fields Scsi Command Descriptions 10CHANGE DEFINITION-Field Descriptions 9CHANGE Definition Command Descriptor Block-Data FormatChange Operating Definition 40h Format Unit Command 04h 12FORMAT Unit Command-Field Descriptions 11FORMAT Unit Command Descriptor Block-Data Format 13FORMAT Unit Command Supported Options Five Forms of Format Unit CommandsFormat Unit Parameter List 14FORMAT Unit Parameter List-Data Format 16FORMAT Unit Defect List Header-Field Descriptions 15 .FORMAT Unit Defect List Header-Data FormatFOV Dpry DSP 19FORMAT Unit Initialization Pattern Descriptor-Data Format 17FORMAT Unit Defect Descriptor-Block Format Initialization Pattern Type Description 21FORMAT Unit Initialization Pattern TypeName Description 22INQUIRY Command Descriptor Block-Data Format Inquiry Command 12h23 Inquiry Command Descriptor Block-Field Descriptions Evpd Byte Bit Standard Inquiry Data24Standard Inquiry Data Page-Data Format QAS 25Standard Inquiry Data Page-Field DescriptionsField Name Value Description 26Supported Vital Product Data Pages -Data Format Vital Product Data Pages27Vital Product Data-Page Codes 28Unit Serial Number Page-Data Format 31Implemented Operating Definition Page-Field Descriptions 30Implemented Operating Definition Page-Data Format 33Device Identification Page Data Format 32ASCII Implemented Operating Definition Page Data Format LSB 35Command Support Data Page-Data Format34Device Identification Page Field Description 36Command Support Data Page-Field Descriptions Hex Data Returned When Inquiry is Received and CmdDt Bit 37Command Support Data Page Command or Operation CodesOpCode Command Support Version Length RES. OUT PersistRES. 38LOG Select Command Descriptor Block-Data Format LOG Select Command 4Ch39LOG Select Command Descriptor Block-Field Descriptions PCR Code Description LOG Sense Command 4Dh40 Disk Drive Log Pages 41LOG Sense Command Descriptor Block-Data Format LOG Sense Command Descriptor Block42LOG Sense Command Descriptor Block-Field Descriptions Reset 43LOG Sense Log Page Format-Data Format LOG Sense Log PagesTSD ETC Lbin 46Generic Log Parameter-Field Descriptions Initiator-Changeable Mode Pages Mode Select 6 Command 15h47MODE Select 6 Command Descriptor Block-Data Format 48MODE Select 6 Command Field Descriptions Code Name Function Size Bytes 49Initiator-Changeable Mode Pages Mode Parameter List Mode Page Types50 Mode Page Types 51Mode Parameter List-Data Format 53Mode Parameter Header 6-Byte-Data Format 52Mode Parameter List-Field Descriptions54Mode Parameter Header- Field Descriptions 55Mode Parameter Block Descriptor-Data Format Categories of Changeable Pages 56 Mode Parameter Block Descriptor-Field DescriptionsUnit Attention Condition Page 00h 57Categories of Changeable Pages 60Read-Write Error Recovery Page-Page Read-Write Error Recovery Page 01hField Default Value Description 59Unit Attention Condition Awre 61Read-Write Error Recovery Page Field DescriptionsDefault Description Field Default Description 63 Disconnect-Reconnect-Field Descriptions Disconnect-Reconnect Page 02h62Disconnect-Reconnect EER PER Verify Error Recovery Page 07h64Verify Error Recovery Page-Page 66Caching Page-Page 65Verify Error Recovery Page-Field DescriptionsCaching Page 08h WCE 67Caching Page Field Descriptions 68Control Mode Page Data Format Page 0Ah Control Mode Page 0AhFSW Gltsd Rlec SWP Raerp Uaaer Eaerp Eeca RAC Eeca 69Control Mode Page-Field DescriptionsGltsd Maxtor Atlas 10K LPN Notch and Partition Page 0Ch70Notch and Partition Page-Page 0Ch 71Notch and Partition Page-Field Descriptions 72Port Control Page Short Format Port Control Mode Page 19h 73Port Control Page Long Format 75 Field Descriptions 74Margin Control Subpage 01h Maxtor Atlas 10K 76Saved Training Configuration Subpage 02h 78 Transceiver Period Factor 77Negotiated Settings Subpage 03hCode Transceiver Period Factor Sent Received Code Transceiver Mode 79Transceiver Mode Bit Name Description 80Report Transfer Capabilities Subpage81 Field Descriptions 82Information Exceptions Control Page-Page 1Ch Information Exceptions Control Page 1ChEwasc Mrie MSB Perf 84Codes Used by the Mrie Field 85MODE Select 10 Command Descriptor Block-Data Format Mode Select 10 Command 55h86Mode Parameter Header 10-Byte-Data Format 87Mode Parameter Block Descriptor-Data Format 88Mode Parameter Block Descriptor-Field Descriptions 89MODE Sense 6 Command Descriptor Block-Data Format Mode Sense 6 Command 1Ah90MODE Sense Command-Field Descriptions 91Mode Parameter Header 6 Byte-Data Format 93Read-Only Mode Pages Read-Only Mode PagesFormat Device Page 03h 94Format Device Page-Page Maxtor Atlas 10K Ssec 95Format Device Page-Field Descriptions RPL Rigid Disk Geometry Page 04h96Rigid Disk Geometry Page-Page Tion 97Rigid Disk Geometry Page-Field Descriptions 98MODE Sense 10 Command Descriptor Block-Data Format Mode Sense 10 Command 5Ah99Mode Parameter Header 10 Byte-Data Format 100Mode Parameter Block Descriptor-Data Format Bit 7 This bit is set if the drive is write protected Persistent Reservation in Command 5Eh 104Read Keys Parameters-Data Format 103PERSISTENT Reservation in Command-Field Descriptions Described in -106 and -107 respectively 107Read Reservations Parameters-Field Descriptions Data Description Field Code Name Description 110Persistent Reservation Type Codes and Their Meanings Exclusive LU EX Persistent Reservation Already HeldRead Write Persistent Reservation OUT Command 5Fh Tion OUT 113PERSISTENT Reservation OUT Command-Field Descriptions Powering down the logical unit, if the last Tions Preempted Pre-empting initiator Clear portion of the action executes normally 115Persistent Reservation Type Codes and Their Meanings Registrants 116PERSISTENT Reservation OUT Parameter List-Data Format Extent Length Eter List Nored for all other types of service actions Parameters 118Device Server Interpretation of Service and Scope Value 120READ 6 Command-Field Descriptions Read 6 Command 08h119READ 6 Command-Data Format 122 Read 10 Command-Field Descriptions Read 10 Command 28h121READ 10 Command-Data Format 123READ Buffer Command-Data Format Read Buffer Command 3Ch Buffer Offset must be 124READ Buffer Command-Field Descriptions 125READ Capacity Command-Data Format Read Capacity Command 25h126READ Capacity Command-Field Descriptions 127READ Capacity Returned Data-Data Format 128READ Defect Data 10 Command-Data Format Read Defect Data Command 10 37h 130Defect Descriptor-Block Format 129READ Defect Data 10 Command-Field Description 133Defect List Header-Field Descriptions 132Defect List Header -Data Format 135 Read Defect Data 12 Command-Field Description Read Defect Data Command 12 B7h134READ Defect Data 12 Command-Data Format 139Defect List Header-Field Descriptions 136Defect Descriptor-Block Format138Defect List Header-Data Format 140READ Long Command Descriptor Block-Data Format Read Long Command 3Eh141READ Long Command Descriptor Block-Field Descriptions 142READ Long Command-Returned Data 144READ Skip Mask Command-Field Description Read Skip Mask Command E8h143READ Skip Mask Command-Data Format 145REASSIGN Blocks Command Descriptor Block-Data Format Reassign Blocks Command 07h146REASSIGN Blocks Defect List Header-Data Format 147REASSIGN Blocks Defect List Header -Field Description Maxtor Atlas 10K 105 149Diagnostic Pages Supported by The Drives Receive Diagnostic Results Command 1ChDescription Size In Bytes Code PCV Translate Address Page 40h Supported Diagnostics Pages Page 00h152Supported Diagnostics Pages Page-Data Format 154Translate Address Page-Field Descriptions 153Translate Address Page-Data Format 156RELEASE 6 Command -Field Descriptions Release 6 Command 17h155RELEASE 6 Command Descriptor Block-Data Format 158 Release 10 Command Field Descriptions Release 10 Command 57h157RELEASE 10 Command Descriptor Block-Data Format 161REPORT Device Identifier Parameter List-Data Format Report Device Identifier Command A3h Maxtor Atlas 10K 163REPORT Luns Command Descriptor Block-Data Format Report Luns Command A0h164REPORT Luns Command Descriptor Block-Field Description 165LUN Reporting Parameter List -Data Format 166REQUEST Sense Command Descriptor Block-Data Format Request Sense Command 03h167REQUEST Sense Command Descriptor Block-Field Description Sense Data Availability 168Sense Data Format for Error Code 70h or 71h-Data Format Sense Data Format for Error Code 70h and Error Code 71hStatus Reporting EOM ILI FRU 169Sense Data Fields Error Code 70h-Field Descriptions Sense Key Code Description 170Supported Sense Keys 171Sense Key Information Field Contents EC REC SVO Missed STM Sense Meaning Key Code Sense Meaning Key Code Maxtor Atlas 10K 121 Sense Meaning Key Code Maxtor Atlas 10K 123 Sense Meaning Key Code Maxtor Atlas 10K 125 Sense Meaning Key Code Qualifier Maxtor Atlas 10K 127 Init Maxtor Atlas 10K 129 Sense Meaning Key Code Maxtor Atlas 10K 131 174ILLEGAL Request Sense Key Field Pointer Bytes\Data Format 173 Sense-Key Specific Field Contents BPV 179MEDIUM Error or Recovered Error Sense Key Retry Count Field Descriptions 181 Reserve 6 Command-Field Descriptions Reserve 6 Command 16h180RESERVE 6 Command Descriptor Block-Data Format 183 Reserve 10 Command-Field Descriptions Reserve 10 Command 56h182RESERVE 10 Command Descriptor Block-Data Format 185Reservation Types 184Extent Descriptors-Data Format187RESERVE 10 ID Only Parameter List-Data Format Reservation Type Description 188REZERO Unit Command Descriptor Block-Data Format Rezero Unit Command 01h 189SEEK 6 Command Descriptor Block-Data Format Seek 6 Command 0Bh 190SEEK 10 Command Descriptor Block-Data Format Seek 10 Command 2Bh 192 Send Diagnostic Command-Field Descriptions Send Diagnostic Command 1Dh191SEND Diagnostic Command Descriptor Block-Data Format 193Supported Diagnostic Page List-Data Format Supported Diagnostic Page ListTranslate Address 194Translate Address Page-Data Format 198SET Device Identifier Parameter List-Field Descriptions SET Device Identifier Command A4h197SET Device Identifier Parameter List-Data Format 200START Stop Unit Command-Field Descriptions Start Stop Unit Command 1Bh199START Stop Unit Command Descriptor Block-Data Format 202SYNCHRONIZE Cache Command-Field Descriptions Synchronize Cache Command 35h201SYNCHRONIZE Cache Command Descriptor Block-Data Format 203TEST Unit Ready Command Descriptor Block-Data Format Test Unit Ready Command 00h 205 Verify Command-Field Descriptions Verify Command 2Fh204VERIFY Command Descriptor Block-Data Format 207 Write 6 Command-Field Descriptions Write 6 Command 0Ah206WRITE 6 Command Descriptor Block-Data Format 209 Write 10 Command-Field Descriptions Write 10 Command 2Ah208WRITE 10 Command Descriptor Block-Data Format 211WRITE and Verify Command-Field Descriptions Write and Verify Command 2Eh210WRITE and Verify Command Descriptor Block-Data Format 212WRITE Buffer Command Descriptor Block-Data Format Write Buffer Command 3Bh 213WRITE Buffer Command-Field Descriptions Write Same Command Write Long Command 3Fh214WRITE Long Command Descriptor Block-Data Format 215WRITE Long Command-Field Descriptions 217WRITE Same Field Description 216WRITE Same Command Descriptor Block-Data Format218WRITE Skip Mask Command EAh 219WRITE Skip Mask Command Field Description Maxtor Atlas 10K Feature Descriptions WRITE-BACK Caching Zero Latency READ/WRITE Average Access TimeDISCONNECT-RECONNECT Track and Cylinder Skewing Transfer Error Protection Media Error ProtectionAddressing Error Protection Data Sector Reallocation Error Protection Command Reordering Tagged Command QueuingData Verification Banded Recording Periodic Self-Adjustments DiagnosticsPower On Self Test Post Error Recovery Maxtor Atlas 10K Diffsens Diffsens Switching 1ST and DT CLocking DT and ST Clocking Adaptive Active Filter AAF Cyclic Redundancy CheckingDomain Validation Free Running Clock FRC Transmitter Pre-Compensation with CutbackSkew Compensation Information Unit Transfers System Considerations Applicable Scsi Physical Documents Table A-1SCSI-2/SCSI-3 Equivalent Terminology Quick Reference Table A-2SCSI-3 Quick Reference Commands Scsi Commands and Messages Table A-4SCSI-3 Quick Reference Pages Table A-3SCSI-3 Quick Reference Messages Maxtor Atlas 10K Table A-6SCSI-3 Quick Reference Status Codes Table A-5SCSI-3 Quick Reference Sense Keys Appendix B Negotiated Rate Information page Reference Table B-1Transfer Period Factor Field Values When Parl = Table B-2Transfer Period Factor Field Values When Parl = Command Settings for the QAS, DT, and IU fields Glossary Glossary Maxtor Atlas 10K V G-3 4Maxtor Atlas 10K Maxtor Atlas 10K V G-5 LOW-VOLTAGE Differential LVD Maxtor Atlas 10K V G-7 8Maxtor Atlas 10K Maxtor Atlas 10K V G-9 10Maxtor Atlas 10K True Refers to the logical-one or 12Maxtor Atlas 10K Index 17,5-21 Parameter List 5-11,5-12,5-17,5-18, 5- 37, 5-39,5-130,5-141 107, 5-108,5-132 141