SUSE Manager disk space management
Our SUSE Manager Server is taking a huge amount of storage. I have checked /var/spacewalk/packages directory and I can see two folders with packages: "1" and "NULL". "NULL" is taking much more space than "1". I can't find any information about this in the documentation, is "NULL" storing old packages and can be deleted?
Could someone recommend some reference or guide (apart from the one in SUMA administration guide) for space management in SUSE Manager?