This is for information only, see solution below.
The server is customized with Raid 1 disk (2* TB WD). Main OS is Hyper-v 2012 R2. On top of Hyper-V a Windows 2012 R2 essential is installed. (And other OS too). The access of Windows 2012 R2 Ess. shares was very slow (2-4MB/s)!!!
Problem was a property in the Broadcom network drivers (Virtual Machine Queuing=enabled).
see more information here: http://support.microsoft.com/kb/2902166
Here the summary what help for me:
Hyper-v: in CMD windows:
powershell
Get-NetAdapterAdvancedProperty => all properties from all network adapters and names
Disable-NetAdapterVmq -name "Ethernet 3"
Disable-NetAdapterVmq -name "Ethernet 2"
Exit
reboot Hyper-V
After this the access time to shares of Windows 2012 R2 essential is appox. 130 MB/s
P.S. This thread has been moved from ProLiant Servers - Netservers to ProLiant Servers (ML,DL,SL). -HP Forum Moderator
