data

so the challenge today is to move data around i have 3 servers.
A. has a fast internet connection, but limited drive space.
B. has a slower internet connection, but more drive space.
C. has a fast internet connection, and lots of drive space, but is inaccessable from the real world
right now A has all my data but is running out of space.
B has a limited backup of the raw files from A.
C has a full backup of A.
so B needs a full backup of the raw files from A.
B needs to process all the files for to be internet ready and then send those to A.
C has to take backups of A and B.
confused yet? i am.