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Fujitsu MAP3735FC, MAP3147FC manual Defect Management, C141-E163, 3-13

Models: MAP3735FC MAP3147FC

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Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command

3.3 Defect Management

(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-E163

3-13

Image 49

Fujitsu MAP3735FC, MAP3147FC Defect Management, C141-E163, 3-13, 8 Alternate block allocation by REASSIGN BLOCKS command

Contents

C141-E163-01EN MAP3147FC MAP3735FC DISK DRIVES PRODUCT/MAINTENANCE MANUALHandling of This Manual FOR SAFE OPERATIONIMPORTANT NOTE TO USERS Chapter 2 Specifications PrefaceChapter 4 Installation Requirements Chapter 5 InstallationAPPENDIX A PrefaceConventions for Alert Messages CONVENTIONS USED IN THIS MANUAL PrefaceThis page is intentionally left blank Important Alert Messages Important Alert ItemsC141-E163 Important Alert ItemsImportant Alert Items C141-E163This page is intentionally left blank Manual Organization This page is intentionally left blank FIBRE CHANNEL PHYSICAL AND SIGNALING INTERFACE FC-PH REFERENCED STANDARDSFIBRE CHANNEL PRIVATE LOOP SCSI DIRECT ATTATH FC-PLDA This page is intentionally left blank Alternate block allocation CONTENTSContents A.1 Interface FC-SCA Connector Signal Allocation Contents IllustrationsFigures Tables ContentsThis page is intentionally left blank 1.1 Standard Features 1.2 Hardware Structure 1.3 System Configuration CHAPTER 1 General DescriptionGeneral Description 1.1 Standard Features1.1 Standard Features 12 Automatic alternate block reassignment General Description1.2 Hardware Structure 1.2 Hardware StructureFigure 1.1 FC model drives outer view General Description Disk/head configuration1.3 System Configuration 1.3 System ConfigurationFigure 1.3 Example of FC-AL system configuration General Description 1 Loop configuration2.1 Hardware Specifications CHAPTER 2 Specifications2.1 Hardware Specifications 2.1.1 Model name and order number Table 2.1 Model names and order numbers2.1.2 Function specifications SpecificationsFunction specifications Seek time ms Seek Difference 2048 Cyl/div 2.1 Hardware Specifications5 This value indicates at ready mode 2.1.3 Environmental specifications SpecificationsEnvironmental/power requirements C141-E1632.1.4 Error rate 2.1 Hardware Specifications2.1.5 Reliability The MTBF is defined as Operating time hours at all field sites MTBF= Specifications4 Data security at power failure 2.1 Hardware SpecificationsC141-E163 This page is intentionally left blank 3.1.1 Cylinder configuration CHAPTER 3 Data Format3.1 Data Space 3.2 Logical Data Block Addressing 3.3 Defect ManagementData Format Figure 3.1 Cylinder configurationZone layout and track capacity 3.1 Data Space3.1.2 Alternate spare area Data FormatFigure 3.2 Spare area in cell 3.1 Data SpaceFigure 3.3 Alternate cylinder 3.1.3 Track formatFigure 3.4 Track format Data FormatFigure 3.5 Track skew/head skew 3.1 Data Space3.1.4 Sector format Figure 3.6 Sector formatEach sector on the track consists of the following fields Data Format3.1.5 Format capacity 3.2 Logical Data Block AddressingTable 3.2 Format capacity 3.2 Logical Data Block Addressing1 Block address of user space Data Format3.3 Defect Management 3.3.1 Defect list 3.3 Defect Management3.3.2 Alternate block allocation Data Format Figure 3.7 Alternate block allocation by FORMAT UNIT command3.3 Defect Management Figure 3.8 Alternate block allocation by REASSIGN BLOCKS commandC141-E163 3-133 Automatic alternate block allocation Data Format3.3 Defect Management Automatic alternate block allocation is made only once during the execution of one command. If second defective block is detected, the alternate block assignment processing for the first defective block is executed but the alternate block assignment processing for the second one is not executed and the command being executed terminates. However, the initiator can recover the twice error by issuing the same command againThis page is intentionally left blank 4.1 Mounting Requirements 4.2 Power Supply Requirements CHAPTER 4 Installation Requirements4.1 Mounting Requirements 4.1.1 External dimensions 4.3 Connection RequirementsFigure 4.1 External dimensions Installation Requirements4.1.2 Mounting 4.1 Mounting RequirementsFigure 4.2 IDD orientations 4.1.3 Notes on mounting Figure 4.3 Mounting frame structure Installation RequirementsFigure 4.4 Limitation of side-mounting Figure 4.5 Surface temperature measurement points Table 4.1 Surface temperature check point4.1 Mounting Requirements Figure 4.6 Service clearance area Installation Requirements4.2 Power Supply Requirements 4.2 Power Supply RequirementsFigure 4.7 Current waveform +12 VDC 5 Noise filter Installation RequirementsAttenuation 40 dB or more at 10 MHz Figure 4.8 AC noise filter recommendedFigure 4.9 Connector location 4.3.2 Interface connector 4.3 Connection Requirements 4.3.1 Connector4.3 Connection Requirements Figure 4.10 SCA2 type connector Installation Requirements4-10 C141-E1635.1 Notes on Handling Drives 5.2 Setting 5.3 Mounting Drives CHAPTER 5 Installation5.4 Dismounting Drives 5.6 Spare Disk DriveInstallation 5.2 Setting 5.2.1 Loop ID setting 5.2 Setting5.2.2 Mode settings Motor start mode5.3 Mounting Drives 5.3.1 Mounting procedures Installation5.4 Dismounting Drives 5.4 Dismounting DrivesC141-E163 Installation5.5.1 Checking initial operation 5.5.2 Checking connection Motor starts when power is turned on InstallationFigure 5.1 Checking the IDD connection A Figure 5.2 Checking the IDD connection B Motor starts by START/STOP command Executing time about 60 seconds5.5.3 Formatting Installation2 FORMAT UNIT command 5.5.4 Setting parameters Installationcontinued 5-14 InstallationC141-E163 5-15 C141-E163absolute value 5-16 InstallationC141-E163 5.6 Spare Disk Drive6.1 Diagnostics 6.2 Maintenance Information 6.3 Operation Check CHAPTER 6 Diagnostics and Maintenance6.4 Troubleshooting Procedures 6.1 Diagnostics 6.1.1 Self-diagnosticsDiagnostics and Maintenance Operation of self-diagnostics 6.1 Diagnostics6.1.2 Test programs Diagnostics and Maintenance6.2 Maintenance Information 6.2.1 Precautions 6.2 Maintenance Information6.2.2 Maintenance requirements Diagnostics and Maintenance1 Preventive maintenance Preventive maintenance such as replacing air filters is not required3 Parts that can be replaced in the field 6.2 Maintenance Information6.2.3 Maintenance levels Diagnostics and Maintenance6.2.4 Revision numbers 6.2 Maintenance InformationFigure 6.1 Revision label example Figure 6.2 Indicating revision numbers 6.2.5 Tools and test equipment Diagnostics and Maintenance6.2.6 Tests Figure 6.3 Test flowchart 6.2 Maintenance InformationC141-E163 6-116.3.3 Diagnostic test Diagnostics and Maintenance6.3 Operation Check 6.3.1 Initial seek operation check 6.3.2 Operation test6.4 Troubleshooting Procedures 6.4 Troubleshooting Procedures6.4.1 Outline of troubleshooting procedures 6.4.2 Troubleshooting with disk drive replacement in the fieldSystem-level field troubleshooting Diagnostics and Maintenance6.4.3 Troubleshooting at the repair site 6.4 Troubleshooting ProceduresDisk drive troubleshooting C141-E1636.4.4 Troubleshooting with parts replacement in the factory Diagnostics and MaintenanceThis manual does not cover troubleshooting at the factory level 6.4.5 Finding possibly faulty parts7.1 Error Analysis Information Collection 7.2 Sense Data Analysis CHAPTER 7 Error Analysis7.1 Error Analysis Information Collection 7.1.1 Sense data 7.1.2 Sense key, sense code, and subsense codeFigure 7.1 Format of extended sense data Error Analysis7.2 Sense Data Analysis 7.2.1 Error information indicated with sense data7.2 Sense Data Analysis Definition of sense data7.2.3 Sense data 1-1x-xx, 3-1x-xx and E-1D-00 Disk read error Error AnalysisC141-E163 7.2.2 Sense data 3-0C-03, 4-40-xx, 4-44-xx, and 4-C4-xxA.1 Interface FC-SCA Connector Signal Allocation APPENDIX A Connector Signal AllocationA.1 Interface FC-SCA Connector Signal Allocation Connector Signal AllocationFC-SCA connector CN1 Table A.1Command GlossaryFC Device Initiator INITTarget TARG GlossaryAcronyms and Abbreviations Acronyms and Abbreviations Index Index Index This page is intentionally left blank 1, Place des Etats-Unis, SILIC 310, 94588 Rungis Cedex, FRANCE This page is intentionally left blank FOR FUJITSU USE READER’S COMMENT FORMThis page is intentionally left blank