Q: WinSCP error code 4 when uploading large file I'm trying to move a file from my local machine to another machine into which I've SFTP-ed.
The file has 160MB. The transfer stops after a quarter of the file is moved over, with the following message:

Copying files to remote side failed
  General Failure(server should provide error description)
  Error code: 4
  Error message from server: Failure


A: This may be because space is full on your server.
Try executing df -Th command to see.
Free space on your server and try again it works.

A: This would typically be due to a full file system on the server or exceeded user quota.
Actually a complete error message suggests that:

Common reasons for the Error code 4 are:

*

*Renaming a file to a name of already existing file.

*Creating a directory that already exists.

*Moving a remote file to a different filesystem (HDD).

*Uploading a file to a full filesystem (HDD).

*Exceeding a user disk quota.

For details, see also WinSCP documentation on the SFTP code 4.
