ERROR_FULL_BACKUP - 4004 (0xFA4)
The backup failed. Check the directory to which you are backing the database.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_FULL_BACKUP error code, represented by the numeric value 4004 or in hexadecimal as 0xFA4, indicates that a full backup operation has failed. This error suggests there is an issue with the directory to which the database is being backed up.
Error Details
This error typically occurs when the system attempts to perform a full backup but encounters problems related to the target directory. The specific issues could include incorrect permissions, invalid paths, or other file system-related errors that prevent the backup process from completing successfully.
Usage Context
The ERROR_FULL_BACKUP error is commonly encountered in scenarios where a full backup of a database or critical files is required. It can occur during scheduled backups, manual backup operations, or any situation where data integrity and redundancy are crucial.
Developer Interpretation
Developers should interpret this error as an indication that the directory specified for the backup operation does not meet the necessary conditions to complete the task. This could be due to a variety of factors such as incorrect path specifications, insufficient permissions, or issues with the target directory's structure or content.
Related Errors
- ERROR_DIRECTORY_NOT_FOUND (0x7B): The specified directory for backup does not exist.
- ERROR_ACCESS_DENIED (0x5): Insufficient access rights to perform the operation on the target directory.
- ERROR_PATH_NOT_FOUND (0x3): The path provided in the backup operation is invalid or incorrect.
FAQ
Q: What causes the ERROR_FULL_BACKUP error?
A: This error can occur due to various reasons, including an incorrect directory path, insufficient permissions, or issues with the target directory's structure. Developers should review the specified directory and ensure it meets the necessary conditions for a backup operation.
Q: How can I resolve this issue?
A: To resolve ERROR_FULL_BACKUP, developers should verify that the target directory exists, has appropriate permissions, and is correctly specified in the backup command or configuration. Adjusting these settings as needed will help ensure successful completion of the backup operation.
Summary
The ERROR_FULL_BACKUP error code indicates a failure during a full backup due to issues with the target directory. Developers should focus on ensuring that the directory path, permissions, and other related factors are correctly configured before attempting the backup again.