Copy Fails with "Not Enough Free Space" Error
Attempts to copy data on a File Storage drive mounted on a Windows machine fail with a "There is not enough space" error message.
Cause: Windows does a check for free space for copy and paste operations on the same machine. If the mount target's Reported Size is set to a value lesser than the utilization of file systems mounted through the mount target, this error can occur.
Solution: The File Storage service does not have space limitation on storage, and a mount target's Reported Size is a soft limit. Windows uses the fsstat call to determine free space before attempting to write the data, and the reply to that fsstat call uses the Reported Size as the total size.
By default, File Storage reports file system capacity as 8589934592 gibibytes (GiB), but it is possible to specify a lower value. If the value was modified, reset it to the default size or a size larger than the utilization of all of the file systems mounted through the mount target.