HCI not connected to Azure

Question

I saw an error with our HCI cluster and it isn't syncing with Azure. I click the sync in WAC and it says the sync was completed. However the connection status still says disconnected and no update shows up in Azure. The cluster is registered and a test connection from powershell succeeds. Not sure what else to check.

Answer 1

Hi @Andrew Mah ,

I believe the connection status you are referring to is the Azure Arc connection status. To fully understand the possible cause, please allow me to ask a few additional questions?

Are you running HCI OS 21H2 (build 20348)?
If so, did you upgrade from the previous 20H2 build?
If you are running 21H2, have you registered your cluster since being on this build?

The reason for asking is because Azure Arc was introduced in 21H2. The process of installing the agent and connecting to Azure happens automatically during the registration process. If your cluster was built in version 20H2 then upgraded to 21H2, Arc enablement does not automatically occur. You will need to re-register your cluster to kick off the Arc enablement process.

If after re-registering your cluster the agent still isn't connected (or if you did register your cluster while on version 21H2), it is possible that the agent download was blocked or failed for some reason. In this case, be sure that the Arc agent is not already installed and try registering the cluster again. If you have a proxy in the environment, ensure the proxy settings are correctly configured on all nodes of the cluster. Also to note, it is not supported to manually install the Arc agent onto HCI nodes. This process MUST be completed automatically by the registration process.

If the process continues to fail, there should be a log within C:\Windows\Tasks\ArcForServers in the format of RegisterArc_YYYYMMDD.log that would give more details as to the status of the agent installation.

Hope this helps!
Trent