Our enviroment :
OES 11 SP1
Connect via 10Gbit Fibre (direct attached cable to switch)

Clients WINDOWS 7

Connect via 1 Gbit

We se Bad NCP perfomance on the same Volume vs CIFS

While copying a file from the workstation to a volume via NCP we get about ~45 MB/s
While copying a file from the workstation to the same volume via CIFS we get about ~100 MB/s

NCP can be slower but thats a huge difference, any ideas to step further are welcome.

regards