Gr-R:

I have done what you askme. The speed has improove but i don´t know if the results are good or it can be greater.

Here are some pics:
Speed on esxi:

HD Tach on a VM:

Configuration on iscsi initiator: (static targets configured)

Configuration on iscsi Nics on esxi:


If you see something wrong please telme.
Thanks for your help