Hello Nid15, Yes you are correct that you will get 4gb minus overhead.   Please let us know if you have any other questions.
I have a configuration running for quite some time. (2 R815 hosts with 8 iscsi NIC and md3220i with dual controller) I was adding another host and a second iscsi switch to it so was looking around to see if any guidelines have changed. In my configuration I have 8 NIC's per host. I figured 4 paths for each controller. Is that an overkill? I noticed the dell sheets mention 4 NIC's per host., that would give 2 parallel paths to each controller. Current config: Host 1: 10.10.6.211 10.10.6.212 10.10.7.211 10.10.7.212 * * 10.10.9.212 MD3220i RC0-1: 10.10.6.101 (raid controller 0, port 1) RC0-2: 10.10.7.101 RC0-3: 10.10.8.101 RC0-4: 10.10.9.101 RC1-1: 10.10.6.201 RC1-2: 10.10.7.201 RC1-3: 10.10.8.201 RC1-4: 10.10.9.201 Host 2: 10.10.6.213 10.10.6.214 10.10.7.213 10.10.7.214 * * 10.10.9.214 Currently there is only 1 iscsi switch (bad idea). I am going to add second one next week for redundancy. Any pointers on how should I separate the cabling based on ports? Should I change my IP scheme? Currently when I turn ON Round-robin on my esxi, I see 4 paths with Active (I/o) for each LUN. Thanks!  Note: I had posted this on a different thread and did not get any replies. I guess it might be because the thread was answered.
MD3220i IP address scheme with esxi4.1