Hello!
We have been using Open E DSS V6 on a few of our clients already.
The problem we are trying to solve concerns how to correctly utilize MPIO from the host side to be able to get better throuhput and redundancy to SANs configured in a failover.
Scenario:
2 x Open-E SAN systems in failover connected to two switches (non-stacked but connected via 1Gb connection between them) via dual 10Gb connections (bonded on the SANs).
1 x MS Windows 2008 R2 hyper-v host with two dual 1Gb NICs intended for iSCSI connectivity (so four 1Gb connections going to same switches, two into each switch).
2 x switches dedicated to iSCSI capable of mixed 10Gb/1Gb connectivity - not stacked.

Before anyone starts posting links to the MPIO how-to for Windows Server 2008, lets clear the field by saying the SANs present only one iSCSI target to the 'front-end' - one LUN only.
Document clearly outlines creating multiple connections to multiple iscsi targets - not just one.
So, any advice on how to efficiently connect four 1Gb NICs from one hyper-V host to same iSCSI target (failover IP) on the SAN??
We are so far unsuccessful at arriving at a good solution here and are worried that in the end we can only successfully utilize one NIC connection from host to SAN.

Please advise!
To summarize the problem:
How to correctly configure iSCSI connection to open (in failover with one target, one lun) from multiple NICs on the host such that all host NICs are actually used optimally?

I am aeternally grateful for any constructive input on this!

Darko