The user's disk limit has been exceeded on a user file system, usually because a file was just created or enlarged beyond the limit. This almost always refers to a magnetic disk, and not to an optical disc. Any data created after this condition occurs can be lost.
The user can delete files to bring disk usage under the limit, or the server administrator can use the edquota(1M) command to increase the user's disk limit.
The symbolic name for this error is EDQUOT, errno=49.