scp -p -r /vmfs/volumes/datastorename/vmtocopy root@192.168.1.239:/vmfs/volumes/datastore2name/vmtocopy
-r means recursive
-p preserves modification times, access times, and modes from the original file.
Enable SSH on the host you are copy VM from.
Enable SSH Client in destination host's firewall.
Thanks to these guys:
http://www.vhersey.com/2013/05/copy-files-between-esxi-hosts-using-scp/