This is an archive version of the document. To get the most up-to-date information, see the current version.Offsite Backup
The common requirement for offsite backup is that one Veeam Data Mover Service runs in the production site (closer to the source datastore), and the other Veeam Data Mover Service runs in the remote target site (closer to the backup repository). During backup, Veeam Data Mover Services maintain a stable connection, which allows for uninterrupted operation over WAN or slow links.
If you choose to back up to an offsite Windows or Linux repository, Veeam Backup & Replication will start the target-side Veeam Data Mover Service on the Windows or Linux repository server. The source-side Veeam Data Mover Service can be hosted either on the source host or on a dedicated off-host backup proxy, depending on the backup mode you use (on-host or off-host). Backup data is sent from the source to the backup repository over WAN.
If you choose to back up to an offsite SMB share in the on-host mode, you should deploy an additional Microsoft Windows-based gateway server in the remote site and point the SMB share to this gateway server in the backup repository settings. In this scenario, Veeam Backup & Replication starts the target-side Veeam Data Mover Service on the gateway server. The source-side Veeam Data Mover Service can be hosted either on the source host or on a dedicated off-host backup proxy in the source site, depending on the backup mode you use (on-host or off-host).
