ERROR_CLUSTER_INVALID_SECURITY_DESCRIPTOR - 5946 (0x173A)
The Security Descriptor does not meet the requirements for a cluster.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_CLUSTER_INVALID_SECURITY_DESCRIPTOR error code indicates that the security descriptor provided for a cluster operation does not meet the necessary requirements. This typically occurs when attempting to perform operations on a cluster resource where the security context is invalid or insufficient.
Error Details
This error suggests that there is an issue with the security descriptor used in a cluster-related operation. Security descriptors are crucial for defining access control and ownership of objects within the Windows operating system, especially in clustered environments where multiple nodes interact with shared resources.
Usage Context
The ERROR_CLUSTER_INVALID_SECURITY_DESCRIPTOR can be encountered in various scenarios involving cluster management operations such as adding or removing nodes, configuring resource groups, or managing quorum settings. It is important to ensure that the security descriptor provided aligns with the requirements of the operation being performed.
Developer Interpretation
When encountering this error, developers should verify the following:
- Ensure that the correct type of security descriptor is used for the specific cluster resource or operation.
- Confirm that the security descriptor includes all necessary permissions and access control settings required by the operation.
- Check if the security context under which the operation is being performed has sufficient privileges to perform the requested action on the cluster resource.
Related Errors
ERROR_INVALID_SECURITY_DESCRIPTOR(0xC00000A5): Indicates a generic invalid security descriptor error, which may be more general than the specific cluster-related issue.ERROR_ACCESS_DENIED(0x5): May indicate that the operation was denied due to insufficient permissions, even if the security descriptor is valid.
FAQ
Q: What does the ERROR_CLUSTER_INVALID_SECURITY_DESCRIPTOR mean?
A: It indicates that a security descriptor used in a cluster operation is invalid or does not meet the required specifications.
Q: How can I resolve this error?
A: Verify the security descriptor and ensure it meets the necessary requirements for the specific cluster resource or operation. Ensure the correct type of security descriptor is used and that the security context has sufficient privileges.
Summary
The ERROR_CLUSTER_INVALID_SECURITY_DESCRIPTOR error code highlights an issue with a security descriptor in a cluster-related operation. Developers should focus on verifying the correctness and sufficiency of the security descriptor to resolve this error.