You encounter errors when using EM to upload large files because many browsers have a 2-GB limit on file upload.
Proposed Solutions
Use the latest versions of Chrome or Firefox. These browsers support file uploads greater than 2-GB.
Use an alternate upload procedure, such as using a tool like sftp or scp to transfer the file to the server. After the file is on the server, move it to the correct location. For example, a backup file must be placed in the backups folder, as follows: