FTP 125 Data Connection Open vs 552 Exceeded Storage Allocation
FTP 125 (Data Connection Open) is a 1xx Positive Preliminary response, while 552 (Exceeded Storage Allocation) is a 5xx Permanent Negative response. 125 indicates that the data connection is already open and the transfer is beginning. No need to open a new data connection. In contrast, 552 means that requested file action aborted. Exceeded storage allocation for the current directory or dataset. The user's quota has been reached.
描述
The data connection is already open and the transfer is beginning. No need to open a new data connection.
何时出现
When the server reuses an existing data connection for a file transfer instead of opening a new one.
如何修复
No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection.
描述
Requested file action aborted. Exceeded storage allocation for the current directory or dataset. The user's quota has been reached.
何时出现
When uploading a file that would exceed your disk quota or the directory's storage limit configured by the server administrator.
如何修复
Delete unnecessary files to free up quota, or request a quota increase from the server administrator.
主要区别
125 is a 1xx Positive Preliminary response, while 552 is a 5xx Permanent Negative response.
FTP 125: The data connection is already open and the transfer is beginning. No need to open a new data connection.
FTP 552: Requested file action aborted. Exceeded storage allocation for the current directory or dataset. The user's quota has been reached.
You encounter 125 when when the server reuses an existing data connection for a file transfer instead of opening a new one.
You encounter 552 when when uploading a file that would exceed your disk quota or the directory's storage limit configured by the server administrator.
何时使用哪个
For 125 (Data Connection Open): No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection. For 552 (Exceeded Storage Allocation): Delete unnecessary files to free up quota, or request a quota increase from the server administrator.