ERROR_NOT_REDUNDANT_STORAGE - 333 (0x14D)
The storage device does not provide redundancy.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_NOT_REDUNDANT_STORAGE error code indicates that a storage operation was attempted on a device or volume that does not support redundancy. Redundant storage typically refers to features such as RAID, mirroring, or other mechanisms designed to provide data protection and fault tolerance.
Error Details
This error is returned when the system detects an attempt to use a storage mechanism that requires redundancy but is applied to a device or volume that does not support it. This can occur in scenarios where operations like creating a mirrored volume or setting up RAID are attempted on non-redundant storage devices.
Usage Context
This error code may be encountered during the configuration of storage volumes, particularly when attempting to set up redundant configurations such as mirroring or RAID. It is also relevant in scenarios involving backup and recovery operations that require redundancy.
Developer Interpretation
When this error is returned, it indicates that the operation cannot proceed because the underlying storage device does not support the required redundancy features. Developers should ensure that their code checks for the presence of redundancy capabilities before attempting such operations to avoid encountering this error.
Related Errors
ERROR_INVALID_FUNCTION(0x1)ERROR_NOT_SUPPORTED(0x800423E8)ERROR_BAD_DEVICE(0x57)
FAQ
Q: What does the ERROR_NOT_REDUNDANT_STORAGE error mean?
A: It indicates that a storage operation was attempted on a device or volume that does not support redundancy.
Q: How can I prevent this error from occurring?
A: Ensure that your operations are compatible with the storage capabilities of the devices being used. Check for redundancy support before performing operations like mirroring or RAID setup.
Summary
The ERROR_NOT_REDUNDANT_STORAGE error code is a generic indication that an operation requiring redundancy was attempted on a non-redundant storage device. Developers should be aware of this and ensure their applications handle such scenarios appropriately to avoid runtime errors.