Error
Error Code:
1811
MySQL Error 1811: Disk Write Failure
Description
MySQL Error 1811 indicates that the database server encountered a critical problem while attempting to write data to its underlying storage system. This error typically occurs when MySQL cannot save changes to its data files, log files, or temporary files, often pointing to issues with disk space, file system permissions, or storage hardware.
Error Message
IO Write error: (%lu, %s) %s
Known Causes
4 known causesInsufficient Disk Space
The server's storage partition where MySQL stores its data files has run out of available space, preventing new writes.
File System Permissions
The MySQL user or process lacks the necessary write permissions for its data directory, log files, or specific database files.
Disk or File System Corruption
Underlying storage hardware issues, disk failures, or file system corruption can prevent MySQL from writing data reliably.
Read-Only File System
The file system containing MySQL's data directories has been mounted as read-only, preventing any write operations from the database.
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