ERROR_CLUSTER_QUORUMLOG_NOT_FOUND - 5891 (0x1703)
The quorum resource does not contain the quorum log.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_CLUSTER_QUORUMLOG_NOT_FOUND error (5891, 0x1703) indicates that the quorum resource in a Windows Failover Cluster does not contain the required quorum log. This can disrupt cluster operations as the quorum is essential for making decisions and ensuring data consistency.
Error Details
This error typically occurs when the cluster manager or related services attempt to access the quorum log but find it missing from the expected location within the quorum resource. The quorum log is a critical component that records the state of the cluster's quorum, which is used for making decisions in case of node failures.
Usage Context
This error can be encountered during various operations such as cluster initialization, failover, or maintenance tasks. It may also appear when attempting to join a new node to an existing cluster or when there are issues with the quorum configuration.
Developer Interpretation
Developers should interpret this error as an indication that the expected quorum log is missing from the quorum resource. This could be due to various reasons such as corruption, misconfiguration, or hardware issues. The error suggests that the cluster's ability to make decisions and maintain data integrity may be compromised.
Related Errors
ERROR_CLUSTER_INVALID_NODE(5892, 0x1704): Indicates an invalid node in the cluster.ERROR_CLUSTER_RESOURCE_FAILED(5863, 0x16E3): A generic error indicating a failure of a cluster resource.
FAQ
Q: What does the ERROR_CLUSTER_QUORUMLOG_NOT_FOUND error mean?
A: This error indicates that the quorum log is missing from the expected location within the quorum resource, which can disrupt cluster operations.
Q: How can I resolve this issue?
A: You should check the configuration and state of the quorum resource. Ensure that the quorum log is properly configured and accessible. If necessary, restore or recreate the quorum log to ensure proper cluster operation.
Summary
The ERROR_CLUSTER_QUORUMLOG_NOT_FOUND error (5891, 0x1703) signifies a critical issue in a Windows Failover Cluster where the expected quorum log is missing. This can lead to disruptions in cluster operations and should be addressed promptly by checking configurations and ensuring proper state of the quorum resource.