Error
Error Code: ACFS-07193

Oracle Database Error ACFS-07193: Invalid ACFS Disk Offset Mapping

📦 Oracle Database
📋

Description

This error indicates a critical inconsistency within the Oracle Automatic Storage Management Cluster File System (ACFS) metadata. Specifically, an entry in the file system's internal mapping table points to an invalid physical disk location. It typically occurs during file system operations or when ACFS attempts to access or validate file metadata, signifying potential data corruption.
💬

Error Message

Map_File entry with an invalid _ActualDiskOffset value
 found: string maximum: string 
for file:
 string
🔍

Known Causes

3 known causes
⚠️
ACFS Metadata Corruption
The internal file system metadata, which includes file mapping information, has become corrupted or inconsistent due to various factors.
⚠️
Underlying Storage Issues
Problems with the physical disks, storage array, or ASM disk groups can lead to incorrect data being read or written for ACFS metadata.
⚠️
ACFS Software Defect
An internal issue or bug within the Oracle ACFS software component has caused an invalid disk offset to be recorded in file system metadata.
🛠️

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

Find Help

Stack Overflow Google Search Official Docs