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Fault Tolerance
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Consistency Checking
In This Chapter
Performing Periodic Consistency Checking
Verifying Consistency
Validating System Catalog Tables
Validating Data Pages
Validating Extents
Validating Indexes
Validating Logical Logs
Validating Reserved Pages
Validating Metadata
Monitoring for Data Inconsistency
Reading Assertion Failures in the Message Log and Dump Files
Validating Table and Tablespace Data
Retaining Consistent Level-0 Backups
Dealing with Corruption
Finding Symptoms of Corruption
Fixing Index Corruption
Fixing I/O Errors on a Chunk
Collecting Diagnostic Information
Disabling I/O Errors
Monitoring the Database Server for Disabling I/O Errors
Using the Message Log to Monitor Disabling I/O Errors
Using Event Alarms to Monitor Disabling I/O Errors
Using No Bad-Sector Mapping
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