FTP 150 File Status OK vs 452 Insufficient Storage
FTP 150 (File Status OK) is a 1xx Positive Preliminary response, while 452 (Insufficient Storage) is a 4xx Transient Negative response. 150 indicates that the file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer. In contrast, 452 means that requested action not taken. Insufficient storage space in system. The server ran out of disk space while processing the command.
Description
The file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer.
Quand vous le voyez
Right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
Comment résoudre
No fix needed — this means the transfer is about to start. If the transfer stalls after this reply, check firewall rules blocking the data connection.
Description
Requested action not taken. Insufficient storage space in system. The server ran out of disk space while processing the command.
Quand vous le voyez
When uploading a file and the server's disk is full, or when the user's storage quota has been exceeded.
Comment résoudre
Free up disk space on the server or request a quota increase from the administrator. Delete unnecessary files and retry the upload.
Différences clés
150 is a 1xx Positive Preliminary response, while 452 is a 4xx Transient Negative response.
FTP 150: The file status is okay and the server is about to open the data connection for the transfer. This is the normal precursor to a file transfer.
FTP 452: Requested action not taken. Insufficient storage space in system. The server ran out of disk space while processing the command.
You encounter 150 when right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
You encounter 452 when when uploading a file and the server's disk is full, or when the user's storage quota has been exceeded.
Quand utiliser lequel
For 150 (File Status OK): No fix needed — this means the transfer is about to start. If the transfer stalls after this reply, check firewall rules blocking the data connection. For 452 (Insufficient Storage): Free up disk space on the server or request a quota increase from the administrator. Delete unnecessary files and retry the upload.