Fujitsu MAS3735FC, MAS3367FC manual Alternate block allocation by Reassign Blocks command

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3.3 Defect Management

*1 Certification is permitted when DCRT flag is cleared (DCRT flag=0) in FORMAT UNIT command.

The IDD checks all initialized logical data blocks by reading them out after the above alternate block allocation is made to initialize (format) the disk.

(2)Alternate block allocation by REASSIGN BLOCKS command

When the REASSIGN BLOCKS command is specified, the alternate block is allocated to the defective logical data block specified by the initiator by means of alternate sector treatment. If there are unused spare sectors in the same cell as the specified defective logical data block, the alternate block is allocated to these unused spare sectors. However, the alternate block is allocated to unused spare sectors in the alternate cylinder when all spare sectors in the cell are used up.

Figure 3.8 is examples of the alternate block allocation by the REASSIGN BLOCKS command.

Alternate sectors

The same cell

: n represents a logical data block number

: Defective sector

: Unused spare sector

Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command

C141-E198

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Contents MAS3735FC MAS3367FC Disk Drives PRODUCT/MAINTENANCE Manual For Safe Operation Revision History This page is intentionally left blank Overview of Manual PrefaceConventions for Alert Messages PrefaceC141-E198 Iii This page is intentionally left blank Important Alert Messages Important Alert ItemsImportant Alert Items C141-E198 Vii This page is intentionally left blank Manual Organization Product Maintenance ManualFibre Channel Physical and Signaling INTERFACE-2 FC-PH-2 Fibre Channel Physical and Signaling Interface FC-PHFibre Channel Arbitrated Loop FC-AL Fibre Channel Plotocol for Scsi SCSI-FCPContents Contents InstallationAppendix a Connector Signal Allocation Figures Tables This page is intentionally left blank General Description Standard Features Hardware Structure System ConfigurationGeneral Description Standard FeaturesStandard Features General Description FC model drives outer view Hardware StructureMAS3735FC MAS3367FC Disk/head configurationExample of FC-AL system configuration System ConfigurationGeneral Description Hardware Specifications Model name and order number Hardware SpecificationsModel names and order numbers MAS3735FCFunction specifications Specifications32/34 Meeprml FC-ALHardware Specifications Environmental/power requirements Environmental specificationsIops Reliability Error rateMTBF= Hardware Specifications This page is intentionally left blank Data Space Logical Data Block Addressing Defect Management Cylinder configurationData Space Data Format Zone layout and track capacity Data SpaceAlternate spare area Track format Data SpaceMsec Servo frame = 211 zone 0 ~ 266 zone Sector format Track skew/head skewData Format Format capacity Logical Data Block Addressing Data Format Defect Management Defect list Defect ManagementAlternate block allocation Alternate block allocation by Format Unit command Alternate block allocation by Reassign Blocks command Write Write Extend Defect Management This page is intentionally left blank Mounting Requirements External dimensions Installation RequirementsInstallation Requirements Mounting Mounting RequirementsMounting frame structure HDC Surface temperature check pointMPU Service clearance area Current waveform +12 VDC Power Supply RequirementsAC noise filter recommended Connection Requirements Connection Requirements Connector10 SCA2 type connector Installation Installation Setting Loop ID setting SettingMode settings Motor start modeMounting Drives Mounting procedures Dismounting Drives Installation Checking connection Checking the IDD connection a Checking the IDD connection B Formatting C141-E198 Setting parameters Arre AwreArre Awre PER Xffff DiscXxxx Read/write Self-diagnostic functions Diagnostics Self-diagnosticsDiagnostics and Maintenance Diagnostics Test programs Maintenance Information Precautions Maintenance InformationMaintenance requirements Maintenance Information Maintenance levels Revision label example Revision numbersTests Indicating revision numbers Tools and test equipmentTest flowchart Operation Check Initial seek operation check Diagnostic testOperation test Troubleshooting with disk drive replacement in the field Troubleshooting ProceduresSystem-level field troubleshooting Disk drive troubleshooting Troubleshooting at the repair siteFinding possibly faulty parts Troubleshooting with parts replacement in the factoryError Analysis Information Collection Sense data Error Analysis Information Collection Sense Data AnalysisSense key, sense code, and subsense code ILI Error AnalysisLSB SksvDefinition of sense data Sense Data AnalysisSense data 3-0C-03, 4-40-xx, 4-44-xx, and 4-C4-xx Sense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read errorAppendix a Connector Signal Allocation Connector Signal Allocation Glossary Target Targ GlossaryAcronyms and Abbreviations RSV Acronyms and AbbreviationsECC BcrcIndex Mode SELECT/MODEMtbf Mttr PADC141-E198 IN-3 This page is intentionally left blank Fujitsu Canada INC This page is intentionally left blank READER’S Comment Form This page is intentionally left blank