Help Center
Choose product document...
Veeam Backup & Replication 9.5 Update 4
User Guide for Microsoft Hyper-V

Off-Host Backup

In general, off-host backup for VMs on SMB3 shares is similar to off-host backup of VMs on local storage or CSV. During off-host backup, Microsoft VSS processing operations are shifted from the source host to a dedicated machine — off-host backup proxy. The Veeam Data Mover is deployed on the off-host backup proxy, instead of the source host.

If you want to perform off-host backup, the backup infrastructure must meet the following requirements:

  • You must configure an off-host backup proxy. For more information, see Off-Host Backup Proxy.
  • In the properties of a backup or replication job, you must select the off-host backup method and off-host backup proxy that you want to use. If necessary, you can point the job to a specific off-host backup proxy. For more information, see Configuring Advanced Options for Off-Host Backup Proxies.
  • The LocalSystem account of the off-host backup proxy must have read access permissions on the SMB3 file share.
  • The off-host backup proxy must be located in the same domain where the SMB3 server resides. Alternatively, the domain where the SMB3 server resides must be trusted by the domain in which the off-host backup proxy is located.

The off-host backup process is performed in the following way:

  1. Veeam Backup & Replication triggers a shadow copy of the necessary file share. Microsoft VSS components invoked on the source host and SMB3 server create a shadow copy of the volume on which the requested file share is located, and expose the shadow copy as a file share on the SMB3 server.
  2. The Veeam Data Mover on the off-host backup proxy accesses the shadow copy on the SMB3 server. It retrieves VM data from the shadow copy, processes it and copies data to the destination.
  3. After the backup process is complete, the shadow copy is deleted.

Off-Host Backup 

Related Topics

Veeam Large Logo

User Guide for VMware vSphere

User Guide for Microsoft Hyper-V

Enterprise Manager User Guide

Veeam Cloud Connect Guide

Veeam Agent Management Guide

Veeam Explorers User Guide

Backup and Restore of SQL Server Databases

Veeam Plug-ins for Enterprise Applications

PowerShell Reference

Veeam Explorers PowerShell Reference

RESTful API Reference

Required Permissions Reference

Quick Start Guide for VMware vSphere

Quick Start Guide for Microsoft Hyper-V

Veeam Availability for Nutanix AHV Documentation

Veeam Backup for Microsoft Office 365 Documentation

Veeam ONE Documentation

Veeam Agent for Windows Documentation

Veeam Agent for Linux Documentation

Veeam Management Pack Documentation