I’m in the process of migrating 10 TBs of data from an NFS share to a CIFS share and while talking over the details with my team lead he mentioned that he would slap me if I proceeded to do the transfer in serial :-). With that motivation I wrote prsync_transfer! He was joking of course, but in all seriousness he is right. If you run rsync in a serial fashion, the initial “receiving file list…” process may take a while to complete, especially if you have a lot of small files to transfer. After the jump I’ll show you the utility I wrote to resolve this issue.