Which transport mode uses the VMware vSphere Hot-Add feature to attach the virtual disks of a source VM to the Backup Proxy VM?
A. Virtual Appliance
B. Direct NFS Access
C. vPower
D. Network
E. Direct SAN Access
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A
https://helpcenter.veeam.com/docs/backup/vsphere/virtual_appliance.html?ver=110
The Virtual appliance mode is not so efficient as the Direct storage access mode but provides better performance than the Network mode. The Virtual appliance mode is recommended if the role of a backup proxy is assigned to a VM.
In the Virtual appliance mode, Veeam Backup & Replication uses the VMware SCSI HotAdd capability that allows attaching devices to a VM while the VM is running. During backup, replication or restore disks of the processed VM are attached to the backup proxy. VM data is retrieved or written directly from/to the datastore, instead of going through the network.