ERROR_CLUSTER_SHARED_VOLUME_FAILOVER_NOT_ALLOWED - 5961 (0x1749)

The resource cannot move to another node because a cluster shared volume vetoed the operation.

Updated: Feb 21, 2026

Technical Background

This error code, ERROR_CLUSTER_SHARED_VOLUME_FAILOVER_NOT_ALLOWED with the numeric value 5961 or hexadecimal 0x1749, indicates a specific condition in Windows cluster shared volume (CSV) operations. It is related to the behavior of CSVs within a failover cluster environment.

Error Details

The error message, 'The resource cannot move to another node because a cluster shared volume vetoed the operation,' suggests that during a planned or unplanned failover event in a Windows Failover Cluster, a cluster shared volume has prevented the movement of a resource by issuing a veto. This veto can be issued based on various conditions and policies configured within the CSV.

Common Causes

  • Invalid Parameter Values: Incorrect parameters passed to the failover operation could lead to this error.
  • Incorrect Object Type: The object being moved may not be compatible with the cluster shared volume's configuration or policy.
  • Exceeding Limits: The system might have reached a limit on the number of concurrent operations or resources that can be managed by the CSV.

Real-World Context

In a Windows Failover Cluster, cluster shared volumes are used to ensure data availability and consistency across multiple nodes. When a failover event occurs, the system attempts to move resources from one node to another. If a CSV veto is issued, it means that the operation cannot proceed as planned.

Is This Error Critical?

The criticality of this error depends on the specific context in which it occurs. It can be indicative of a configuration issue or a policy violation within the cluster shared volume setup. However, it does not necessarily imply a catastrophic failure; rather, it indicates that the operation cannot proceed as intended.

How to Diagnose

To diagnose this error, follow these steps:

  1. Review Operation Context: Ensure that the failover operation is being performed in an appropriate context and that all necessary prerequisites are met.
  2. Validate Parameters: Check the parameters passed to the failover operation for correctness and completeness.
  3. Confirm Object Types: Verify that the objects involved in the operation are compatible with the cluster shared volume's configuration.
  4. Verify Input Data: Ensure that the data being moved is not corrupted or invalid, as this could trigger a veto.

How to Resolve

To resolve this error, consider the following actions:

  • Correct any invalid parameters and reattempt the failover operation.
  • Adjust the operation context if necessary, ensuring it aligns with the CSV's configuration.
  • Restore data if corruption is suspected or confirmed.
  • Retry the operation with valid inputs.

Developer Notes

Developers should be aware that this error can occur due to various factors, including misconfiguration or policy violations. It is essential to ensure that all operations involving cluster shared volumes are performed in a manner consistent with the CSV's configuration and policies.

Related Errors

  • ERROR_CLUSTER_SHARED_VOLUME_VETO (5960): This error may precede or accompany ERROR_CLUSTER_SHARED_VOLUME_FAILOVER_NOT_ALLOWED, indicating a veto condition.
  • ERROR_CLUSTER_SHARED_VOLUME_LIMIT_EXCEEDED (5971): If the operation fails due to exceeding limits, this error code might be encountered.

FAQ

Q: What does the error 'ERROR_CLUSTER_SHARED_VOLUME_FAILOVER_NOT_ALLOWED' mean?

A: This error indicates that a cluster shared volume has vetoed an attempt to move a resource during a failover event in a Windows Failover Cluster.

Q: How can I prevent this error from occurring?

A: Ensure proper configuration and validation of parameters before performing any operations involving cluster shared volumes. Verify object types and input data for consistency with the CSV's policies.

Summary

ERROR_CLUSTER_SHARED_VOLUME_FAILOVER_NOT_ALLOWED is a specific error code that indicates a veto condition during failover operations in Windows Failover Clusters. It requires careful review of operation context, parameters, and object types to resolve effectively.