This variable allows you to specify an existing directory to be used for holding the temporary files generated by the transaction management system. The value of LOG_DIR is treated as a prefix, much like FILE_PREFIX. If no directory is specified, temporary files are placed in the current directory.

Note: In general, you should not use remote name notation in the LOG_DIR variable. Although remote name notation is allowed for the LOG_DIR variable, it is not advisable to place temporary files on a remote server.