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.
描述
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.
何时出现
Right before a file download or upload begins, confirming the file is accessible and the data channel is being opened.
如何修复
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.
描述
Requested action not taken. Insufficient storage space in system. The server ran out of disk space while processing the command.
何时出现
When uploading a file and the server's disk is full, or when the user's storage quota has been exceeded.
如何修复
Free up disk space on the server or request a quota increase from the administrator. Delete unnecessary files and retry the upload.
主要区别
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.
何时使用哪个
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.