Error
Error Code:
ACFS-03949
Oracle Database Error ACFS-03949: Cannot Snapshot Read-Only Volume
Description
This error indicates that an attempt to create a new snapshot of an Oracle ACFS file system failed. The underlying reason is that the target file system itself is currently residing on a read-only volume snapshot, preventing further snapshot operations. This typically occurs when managing layered snapshots.
Error Message
Failed to create volume snapshot as specified file system is on read-only volume snapshot ' string '.
Known Causes
3 known causesFile System Resides on Read-Only Snapshot
The ACFS file system you are attempting to snapshot is itself part of an existing read-only volume snapshot, which does not permit further snapshot creation.
Invalid Snapshot Layering
Oracle ACFS does not allow creating a snapshot of a file system that is already mounted from a read-only snapshot, violating the allowed layering hierarchy.
Incorrect Source File System Path
The specified file system path for the snapshot operation might be pointing to an unintended read-only snapshot or a file system derived from one.
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