Add at least 1 access node for OneDrive for Business. For high availability (which is recommended for the first full backup), use 2 or more access nodes. Access nodes are virtual machines, cloud instances, or physical servers that run backups and other operations.
Before You Begin
You need the following information:
Host name
User name and password
OS type
Procedure
From the navigation pane, go to Manage > Servers.
The Servers page appears.
In the upper-right area of the page, click Add access node.
The Add gateway dialog box appears.
From the Select packages list, select OFFICE365, and then click OK.
Click Install.