Share via

During applying update getting error - SBE Invoke-CauRun Failed. Validation failed for adding CAU cluster role.

Vikas Singhal (vsingha4) 0 Reputation points
2026-01-08T15:35:13.1466667+00:00

During SBE update process the cau plugin is failing with error -

SBE Invoke-CauRun Failed. Validation failed for adding CAU cluster role.

Azure Local

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Vikas Singhal (vsingha4) 0 Reputation points
    2026-01-21T17:08:24.0933333+00:00

    Hi Manish, Thank you for your response. we were able to resolve it by removing it cluster role from CLI.

    Thank you for your time to help.

    Was this answer helpful?

    0 comments
  2. Manish Deshpande 6,995 Reputation points Microsoft External Staff Moderator
    2026-01-08T16:36:13.1666667+00:00

    Hello @Vikas Singhal (vsingha4)

    Thank you for contacting us about the Azure local issue.

    • This error typically occurs due to one or more of the following:
    1. Pre‑existing or stale CAU cluster role
      • CAU role already exists but is in a failed or corrupted state.
    2. Windows Failover Cluster health issues
      • Cluster validation warnings or errors block CAU role creation.
    3. Missing or inconsistent CAU components
      • CAU feature not properly installed on all nodes.
    4. Identity / permission issues
      • Cluster Name Object (CNO) lacks required permissions in Active Directory.

    Steps to fix the issue :

    1.Remove the existing CAU role and re-run the update

    This has resolved the issue in multiple SBE update failures.

    1. Open Failover Cluster Manager
    2. Go to Roles
    3. If Cluster‑Aware Updating role exists:
      • Right‑click → Remove Role
    4. Confirm the deletion
    5. Re‑run the SBE update

    2.If the issue persists after removing the CAU role:

    1. Open Failover Cluster Manager
    2. Select Validate Configuration
    3. Run full validation
    4. Resolve any Errors

    Any cluster validation error will block CAU role creation.

    3.Ensure CAU Feature Is Installed on All Nodes

    Get-WindowsFeature -Name RSAT-Clustering-AwareUpdating

    If not installed
    Install-WindowsFeature RSAT-Clustering-AwareUpdating

    Reboot the node if prompted, then retry the update.

    1. If CAU creation fails due to validation:
    • Ensure the Cluster Name Object in Active Directory:
      • Exists
      • Is enabled
      • Has permission to create computer objects

    Links
    https://learn.microsoft.com/en-us/windows-server/failover-clustering/cluster-aware-updating

    Thanks,
    Manish Deshpande.

    Was this answer helpful?

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.