SUMMARY
“Backup failed: Error creating snapshot of VM: An incompatible device exists on the virtual machine: Virtual machine is configured to use a device that prevents the snapshot operation: Device '' is a SCSI controller engaged in bus-sharing. Drive have been marked as independent.”
ISSUE
Unable to use Snapshots or perform a backup on virtual machines configured with bus-sharing (1006392)
A VMware VM has a configuration setting that prevents snapshots from occurring. VMs configured with bus-sharing do not support snapshots and thus will fail to backup using Host-level backups.
RESOLUTION
If bus-sharing is required, use Unitrends Backup or a Recovery-Series appliance to protect this VM using asset-level backups.
If bus-share is not required, disable bus-sharing for the VM.
CAUSE
For more information regarding this limitation, see VMware knowledge base article 1006392.