Storing updates

[bernard.mcauley]

Hi,   I'm currently using rsync to mirror a large directory at a remote site.  The directory tree is over 40 GB in size and undergoes constant updates.  However, I would like to have more control over the mirror as changes to the directory tree can cause problems.  What I would like to do is to transfer 'diff' type output and store this before I update the directory tree.  This would allow me to see what changes have been made and possible back track if the changes cause problems.   I realise that something like CVS would probably be better for this, but the remote site is not under my control so I can't implement any new software.  Does anyone know of a way I can get rsync to behave in this manner?   Thanks,   Bernard