This section describes how to modify the Transfer CFT log file properties.


The Transfer CFT log tracks and lists messages and codes related to transfer operations. This information can be used for troubleshooting and monitoring session activity. You can modify the default log values to, for example, use a more precise timestamp, rotate log files at certain times each day, or change the default number of entries in the log file.


Use the following fields to set the Transfer CFT log properties. The user interface indicates default values.

Entry size

Size in bytes of each entry in the log file. Typically, the default value is adequate.

Timestamp precision

Indicates the preciseness of the time displayed in the log, in seconds, 10 milliseconds, or 100 milliseconds.

File Rotation

Number of files in rotation

Number of log files used in the rotation process.

This field is not supported on Transfer CFTs running on z/OS and IBM i computers.

Daily rotation time

Time of day the log file rotates. Additionally, you can rotate the file depending on the size.

Rotate based on size

Indicates whether log files are rotated based on size.

Every _ KB

If files are rotated based on size, indicates the size to trigger the rotation.

Rotate on stop

Indicates whether log files are rotated when Transfer CFT stops.

Log format

The default log layout for Transfer CFT includes the following standard entry categories.


The server date and time of the log entry. Format: YYYY-MM-DD hh:mm:ss.


Level of the log entry. Levels, from highest to lowest verbosity, are INFO, WARNING, ERROR, FATAL.


Code associated with the log message.


Actual log message.


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