Fujitsu MAS3367FC, MAS3735FC manual Alternate block allocation by Format Unit command

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Data Format

(1)Alternate block allocation during FORMAT UNIT command execution

When the FORMAT UNIT command is specified, the allocation of the alternate block to those defective sectors included in the specified lists (P, G, or D) is continued until all spare sectors in the same cell are used up. When they are used up, unused spare sectors in the alternate cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector treatment. Figure 3.7 is examples of the alternate block allocation during the FORMAT UNIT command execution.

: n represents a logical data block number

: Defective sector

: Unused spare sector

Figure 3.7 Alternate block allocation by FORMAT UNIT command

During FORMAT UNIT command, alternate block allocation is conducted in following cases:

1)Unrecovered write offtrack condition during a media write

2)Uncorrectable Data Error during a media read (certification) *1

If above errors are detected during FORMAT UNIT command, the IDD allocates the alternate block(s) to the defective data blocks. Reassign procedure itself is the same as one in REASSIGN BLOCKS command.

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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 Preface Overview of ManualPreface Conventions for Alert MessagesC141-E198 Iii This page is intentionally left blank Important Alert Items Important Alert MessagesImportant Alert Items C141-E198 Vii This page is intentionally left blank Maintenance Manual Manual Organization ProductFibre Channel Physical and Signaling Interface FC-PH Fibre Channel Physical and Signaling INTERFACE-2 FC-PH-2Fibre Channel Arbitrated Loop FC-AL Fibre Channel Plotocol for Scsi SCSI-FCPContents Installation ContentsAppendix a Connector Signal Allocation Figures Tables This page is intentionally left blank Standard Features Hardware Structure System Configuration General DescriptionStandard Features General DescriptionStandard Features General Description Hardware Structure FC model drives outer viewDisk/head configuration MAS3735FC MAS3367FCSystem Configuration Example of FC-AL system configurationGeneral Description Hardware Specifications Hardware Specifications Model name and order numberModel names and order numbers MAS3735FCSpecifications Function specifications32/34 Meeprml FC-ALHardware Specifications Environmental specifications Environmental/power requirementsIops Error rate ReliabilityMTBF= Hardware Specifications This page is intentionally left blank Cylinder configuration Data Space Logical Data Block Addressing Defect ManagementData Space Data Format Data Space Zone layout and track capacityAlternate spare area Data Space Track formatMsec Servo frame = 211 zone 0 ~ 266 zone Track skew/head skew Sector formatData Format Logical Data Block Addressing Format capacityData Format Defect Management Defect Management Defect listAlternate 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 Installation Requirements Mounting Requirements External dimensionsInstallation Requirements Mounting Requirements MountingMounting frame structure Surface temperature check point HDCMPU Service clearance area Power Supply Requirements Current waveform +12 VDCAC noise filter recommended Connection Requirements Connector Connection Requirements10 SCA2 type connector Installation Installation Setting Setting Loop ID 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 Awre ArreArre Awre PER Disc XffffXxxx Read/write Diagnostics Self-diagnostics Self-diagnostic functionsDiagnostics and Maintenance Diagnostics Test programs Maintenance Information Maintenance Information PrecautionsMaintenance requirements Maintenance Information Maintenance levels Revision numbers Revision label exampleIndicating revision numbers Tools and test equipment TestsTest flowchart Diagnostic test Operation Check Initial seek operation checkOperation test Troubleshooting Procedures Troubleshooting with disk drive replacement in the fieldSystem-level field troubleshooting Troubleshooting at the repair site Disk drive troubleshootingTroubleshooting with parts replacement in the factory Finding possibly faulty partsError Analysis Information Collection Sense Data Analysis Error Analysis Information Collection Sense dataSense key, sense code, and subsense code Error Analysis ILILSB SksvSense Data Analysis Definition of sense dataSense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read error Sense data 3-0C-03, 4-40-xx, 4-44-xx, and 4-C4-xxAppendix a Connector Signal Allocation Connector Signal Allocation Glossary Glossary Target TargAcronyms and Abbreviations Acronyms and Abbreviations RSVBcrc ECCMode SELECT/MODE IndexMtbf 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