Hi,
JFYI I attached two files:
I found one glitch(?):
During copying data, I observed a significant increase in 'cached memory' (see attachment:=> memory_after_copy.png).
I don't know, if this could lead to problems, but it's very noticeable.
Secondly, during the copying process exactly 2.206.152.829 Bytes were sent at 100Mbit/s (old machine). As one can see in 'vnstat_graph_after_copy.png', these were logged as "2.14 GiB" (The 13:00 counters were close to "0" before I started). I can't test with 1Gbit/s - is this precision good enough? ;-)
Best, Matthias