file copy hangs at around 50mb then continues after a few seconds
nw65sp5 + n65nss5a clustered iscsi volumes

Smaller files copy fast, but anything over 50mb the progress bar will
stop approximately at the 50mb mark, hang, then continue after a few
seconds. This also seems to freeze the entire volume. ie other users get
the lock.

All network adapters have low utilization (including iscsi)

looking for places to check

Thanks,
Ken