Warning
Error Code: ACFS-05718

Oracle Database Error ACFS-05718: ACFS Filesystem Tree Mismatch

📦 Oracle Database
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Description

This error indicates that a comparison between two internal tree structures within Oracle ACFS (ASM Cluster File System) yielded an unexpected difference. This typically occurs during filesystem validation, synchronization, or metadata operations, suggesting a potential inconsistency or corruption in the ACFS filesystem metadata. While the operation attempts to continue, it flags a significant internal discrepancy.
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Error Message

An unexpected result occurred while comparing the first tree to the second tree. Continuing. Affected files: string string
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Known Causes

4 known causes
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ACFS Metadata Corruption
Corruption within the ACFS filesystem metadata can lead to discrepancies between internal data structures, causing tree comparison operations to fail.
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Underlying Storage or ASM Problems
Issues with the ASM disk groups or the physical storage devices supporting ACFS can lead to data inconsistencies that manifest during tree comparisons.
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Improper Filesystem Operations
Abrupt shutdowns, power failures, or incomplete filesystem operations can leave ACFS metadata in an inconsistent state, leading to comparison errors.
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ACFS Software Defects
In rare cases, a bug within the Oracle ACFS software itself might cause incorrect tree comparisons or introduce inconsistencies during routine operations.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service