Error
Error Code: ACFS-07062

Oracle Database Error ACFS-07062: ACFS Snapshot Inconsistency

📦 Oracle Database
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Description

This error indicates a critical data inconsistency within an ACFS (ASM Cluster File System) file, specifically related to its snapshot metadata. It typically occurs when ACFS attempts to access or modify file extents whose snapshot incarnation numbers do not match expected values, often after recovery operations, storage issues, or snapshot management activities.
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Error Message

extent[ number ] has incorrect _SnapIncarnationNumber value
 found: number maximum: number 
for file:
 string
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Known Causes

4 known causes
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Underlying Storage Corruption
Physical storage issues, disk failures, or I/O errors can corrupt ACFS file metadata, leading to incorrect snapshot incarnation numbers.
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Incomplete Recovery or Rollback
An interrupted or failed ACFS recovery or rollback operation can leave file extents in an inconsistent state, causing metadata mismatches.
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ACFS Snapshot Management Errors
Incorrect procedures during snapshot creation, deletion, or restoration, or issues with snapshot space, can lead to metadata inconsistencies.
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ACFS Internal Inconsistency
Rare internal ACFS software bugs or unexpected system events might lead to metadata corruption within the file system structure.
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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

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