Hotadd is a transport type that can be used when the backup host is itself a virtual machine that resides on a ESX/ESXi host that has access to all datastores via a SAN. During a virtual machine backup using the hotadd transport type the client virtual machine's disks (VMDK) files are mounted (hotadded) on the backup host as additional disks. File name is locked for editing by another user. To open a read-only copy of his document, click.
![Since File Is Locked Since File Is Locked](/uploads/1/2/5/4/125417451/749447060.png)
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