Daniel Veillard said:
Edit /etc/sysconfig/rhn/up2date , change
storageDir[comment]=Where to store packages and other data when they are
keepAfterInstall[comment]=Keep packages on disk after installation
There is a risk associated in the sense that there is no synchronization
of the downloads, and I don't know what would happen if machine A and
machine B try to download the same RPM at the same time, but the worse
which can happen is a corrupted package which will be detected by the
MD5 checksum check of rpm, will be reported and manual intervention can
then clean it up.
Another option would be to just wget a mirror then use the "-k" option to
have up2date copy the files from your mirror. That way if you don't have
the file each machine can download it from RH without causing issues.