For those of you that have enabled ODX on your EqualLogic arrays, what speeds are you seeing? i'm a little disappointed so far - I'm only seeing about 200MB/s. Here is my configuration:

• Server

  • Dell R310 
    • Latest BIOS
    • Onboard BCM5716C (2 ports)
    • HP 331T (4 Port) – two of these ports are used for iSCSI traffic

  Switches

  • 2 HP ProCurve 2910al, latest BIOS
    • Each switch is 1gb, 24 ports
    • VLAN 109 is set to Untagged for the iSCSI ports on both switches
    • Jumbo Frames is enabled on the iSCSI ports
    • Software flow control is enabled on the iSCSI ports
    • 10GB interconnect backplane between switches

  SAN

  • PS6100XS, 6.0.2 firmware (latest)

I'm testing by simply using Windows Explorer to copy at 45GB file. If I disable ODX by running the following in PowerShell: 

Set-ItemProperty hklm:\system\currentcontrolset\control\filesystem -Name "FilterSupportedFeaturesMode" -Value 1

I get speeds of 110MB/s and the transfer takes 410 seconds

With ODX enabled, I get average speeds of about 240MB/s and it takes 200 seconds (3 mins 20 seconds).

Don't get me wrong, that's a big improvement, but articles like this one http://i.dell.com/sites/doccontent/business/solutions/whitepapers/en/Documents/microsoft-offloaded-data-transfer-equallogic.pdf led me to expect closer to 400MB/s speeds with ODX. 

There are obviously other major benefits with ODX such as the near-zero network and CPU utilization, but I'm curious - what speeds are you seeing in your environment?