Before I installed the 10 GbE Nics I had an Intel 1 Gbe Quad port nic in the slot. In fact the other ESXi host still has the Quad port 1 GbE card and performance absolutely stinks there as well. I had dedicated VMKernel ports for iSCSI on both ESXi boxes. Both the 1GbE and 10GbE cards. I will load t...

To be clear, I wanted to reiterate that the Windows 7 PC is testing against the same iSCSI target (Starwind 6) server that the ESXi box(es) were using.

I have been following the posts about iSCSI performace with ESXi 5.x on the forum for a while. I have tried all of the recommendations. DelayedAck, Disk.UseDeviceReset = 0, Jumbo Frames, etc. All to no avail. I have a 10G nic in my ESXi 5.1 server and a 10G nic in the StarWind iSCSI server. When run...