No network issues.
Like I said, it will give 1mb write speeds sometimes, and doing NOTHING else, except stopping and starting the array puts the speed back up to 60-70MBs.
No server reboots, no switch reset, no network changes. But restarting the copy yields full speed again.
It looks alot like problems mentioned a while ago.
http://lime-technology.com/forum/index.php?topic=22675.msg236694#msg236694
Later,
dabone