The DCM transfer and receive operations write
transfer package files to the receive directory. During the generate operation,
a compressed tar file is written to the generate_directory.
The transfer operation writes this compressed tar file
to a temporary import directory in the receive_directory of
the destination database.
If the package is to be compressed,
the receive operation uncompresses and extracts the tar file,
and deletes the compressed file. To perform a successful receive operation,
the destination file system must have enough disk space for the import
directory and compressed tar file.
The receive operation also writes the preview of
the transfer package and information files to the receive_directory.
However, these files are too small to consider when estimating disk
space requirements.
Note: DCM deletes temporary and transfer package files
when it successfully completes a generate, transfer, or receive operation,
but sometimes these files are not removed. Therefore, periodically
check the generate_directory and receive_directory to
make sure that they do not contain leftover files.