hope to get some advices on /opt/zimbra/ directory moving to a new storage system.
there's ~600G data there and we tried to run rsync (-aHKv) several days ago for testing, we found rsync consumed lots of memory and rsync took long time to build the file list, therefour we interrupt it before it really starts to work.
is "cp -a" a better way for large amount of data moving?
if not, what else? any advice on this?