Error
Error Code: ACFS-03679

Oracle Database Error ACFS-03679: Unsupported File Compression Type

📦 Oracle Database
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Description

The ACFS-03679 error indicates that Oracle Automatic Storage Management Cluster File System (ACFS) encountered a file that is of an unsupported type for compression. This typically happens when an attempt is made to apply ACFS compression to files or directories containing file formats explicitly excluded from ACFS compression policies.
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Error Message

File string is a file type that cannot be compressed.
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Known Causes

3 known causes
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Attempting to Compress Unsupported File Types
ACFS compression has specific limitations and does not support all file types. Certain file formats, such as already compressed files, encrypted files, or specific database internal files, are not eligible for ACFS compression.
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Incorrect ACFS Compression Configuration
The compression attribute might have been incorrectly applied to a directory that contains a mix of compressible and non-compressible file types, leading to this error when ACFS processes the unsupported files.
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Internal ACFS Policy Restrictions
Oracle ACFS enforces internal policies that prevent compression of certain file types to maintain data integrity, performance, or system stability, regardless of user intent.
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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