Error
Error Code: ACFS-00518

Oracle Database Error ACFS-00518: Volume Size Retrieval Failure

📦 Oracle Database
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Description

This error indicates that Oracle ACFS was unable to determine the size of a specified volume in sectors. This typically occurs during operations like mounting, resizing, or checking the integrity of an ACFS volume, suggesting an underlying issue with the storage device or ACFS metadata.
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Error Message

unable to obtain volume size in sectors
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Known Causes

4 known causes
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Underlying Storage Device Issues
The physical storage device or LUN where the ACFS volume resides might be offline, inaccessible, or experiencing hardware failures.
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Corrupted ACFS Metadata
Critical metadata within the ACFS volume, which stores information about its size and structure, may have become corrupted.
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Insufficient Permissions
The user or process attempting the ACFS operation lacks the necessary operating system or Oracle ASM privileges to access or query the volume.
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ASM Instance Problems
The Oracle Automatic Storage Management (ASM) instance managing the disk group for the ACFS volume might be down or encountering internal errors.
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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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