FLEXPOD FCOE RDM Paths on ESXi Hosts down
 
Applies to
- ONTAP
 - Microsoft Windows Server
 - Microsoft Windows Server Failover Clustering (WSFC)
 - Microsoft Cluster Service (MSCS)
 - Cisco UCS
 - VMware ESXi 6.0 (Update 3)
 
Issue
- During the Upgrade of ONTAP from 9.1 to 9.3 with fiber channel over ethernet (FCoE) raw device mapping ( RDM )
 - Virtualized Microsoft Windows Server Failover Cluster (WSFC) / Microsoft Cluster Service (MSCS) (cluster-across-boxes) report disk device busy soon after first ONTAP node goes down for reboot
 - Cluster applications hang and both nodes report device busy
 
Example:
The system failed to flush data to the transaction log. Corruption may occur in VolumeId: x:, DeviceName: \Device\HarddiskVolumeY.
({Device Busy}
\Device\HarddiskVolumeZ.
