The Server Extension enables Sharegate to make one call to get a file and all its versions at the same time. Without the extension, Sharegate must make one call per version.
If for example you have 100 files to copy, and each of those have 20 versions each:
- With the Server Extension: 100 calls are required.
- Without the Server Extension: 2000 calls are required.
The extension also allows Sharegate to preserve certain values from your environment.
- Download the Server Extension installer from here.
- Launch the Extension installer, and follow the path as specified.
Note: You must install the Server Extension on your SharePoint web front-end servers (including where your Central Administration is hosted, which is usually a web front-end server, but could be an app server). If you have more than one Web Front-End server, copy the installer into all of them, then run the installer. Your SharePoint server must have at least .NET framework 3.5 or higher in order to proceed with a Server Extension installation.
Installing the Server Extension will not cause any downtime on your SharePoint server and does not require a server reboot.
The server extension is not required in Office 365, but it is highly recommended to install it in your source or destination if you're doing any kind of migration to or from an on-premise SharePoint server. This will help package your information and can even reduce the strain on Office 365, thus reducing the potential for throttling.