Hyper-V Cluster: iSCSI over SMB

Event ID: 5120
Source: Microsoft-Windows-FailoverCluster
Level: Error
Description: Cluster shared volume “volume_name” is no longer available on this node because of “STATUS_BAD_NETWORK_PATH(c00000be)’. All I/O will temporarily be queued until a path to the volume is re-established.

Event ID generated: 5142
Source: Microsoft-Windows-FailoverCluster
Description: Cluster Shared Volume ‘Volume_name’ (‘Cluster Disk #’) is no longer accessible from this cluster node because of error ‘ERROR_TIMEOUT(1460)’. Please troubleshoot this node’s connectivity to the storage device and network connectivity

When accessing a CSV volume from a passive (non-coordinator) node, the disk I/O to the owning (coordinator) node is routed through a ‘preferred’ network adapter and requires SMB be enabled on that network adapter. For SMB connections to work on these network adapters, the following protocols must be enabled:

  • Client for Microsoft Networks
  • File and Printer Sharing for Microsoft Networks


Mit anderen Worten: der gesamte Netzwerk-Traffic aller Hyper-V-Server eines Clusters geht durch den aktuellen Owner des iSCSI-CSVs… m(

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