Error
Error Code:
ACFS-00546
Oracle Database Error ACFS-00546: ACFS On-Disk Signature Update Failure
Description
This error indicates that Oracle ACFS (ASM Cluster File System) failed to update or change its critical on-disk signature. This usually occurs during operations that involve modifying the file system's metadata on the underlying storage, such as mounting, dismounting, or resizing ACFS volumes, or during file system integrity checks.
Error Message
failed to change on-disk signature
Known Causes
4 known causesInsufficient Privileges
The operating system user or Oracle process lacks the necessary read/write permissions to modify the underlying storage devices or ACFS volume where the signature resides.
Underlying Storage Problem
Issues with the underlying disk, ASM disk group, or storage array, such as being in read-only mode, device corruption, or hardware failure, prevent write operations.
ACFS Driver Malfunction
Problems with the Oracle ACFS kernel driver or module, such as being incorrectly loaded, corrupted, or conflicting with other system components, can cause write failures.
Conflicting Operations
Another concurrent operation or process might be holding an exclusive lock on the ACFS file system or its metadata, preventing the signature from being updated.
Solutions
Coming SoonDetailed 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