FreeNAS network setup for MPIO

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dwchan69

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I am setting up a FreeNAS server with 6 NIC, I am planning to serve both CIFS and iSCSI using 5 dedicated interfaces (1 for CIFS and 4 MPIO for iSCSI). These network connection will be connected to 2 separate VLAN / Jumbo Frame ready switches, and the iSCSI receiving host will be either ESX or HyperV hypervisor with 2 GB NIC.

on FreeNAS
1 - Management (192.168.20.101/24) VLAN 20, Switch 1
1 - CIFS (192.168.20.102/24) VLAN 20, Switch 2
4 - iSCSI (192.168.70.101/24) VLAN 70, Switch 1
(192.168.71.101/24) VLAN 71, Switch 2
(192.168.72.101/24) VLAN 72, Switch 1
(192.168.73.101/24) VLAN 73, Switch 2

On HyperVisor
2 - iSCSI (192.168.7#.###/24) VLAN 7? Switch 1
iSCSI (192.168.7#.###/24) VLAN 7? Switch 2

Few questions I do have. As I want to setup MPIO (versus LAGG) with my setup. I presume I add the actual network IP to each of my storage interface as a new Portals? So I would have a portal entries for each of my network interface?

2. I understand Extents and "Associated Targets", but not sure the ratio or best practice to the number of extents per target? As I plan to have numbers of LUN (file extents) being share between 2 ESX hosts, and few numbers more LUN being share between 2 HyperV hosts, do I just have a single target for ESX and a single target for HyperV? But I also wanted to do MPIO, would that mean I need a single target for each extent?

3. And lastly, since I have 4 NIC on the FreeNAS, but only 2 of the hypervisor host(starting with 4, and will be adding more), what is the best course of action to lay out the subnet / LAGG for the network interface? e.g.
using 4 subnet (192.168.70,71,72,73) on the FreeNAS iSCSI, and hypervisor 1 using 192.168.70, 71, while hypervisor 2 using 192.168.72, 73?
or
using 2 subnet (192.168.70 and 71) on the FreeNAS iSCSI, but bind 2 NIC (one on each switch) with LAGG on each subnet, and the hypervisor using 192.168.70 on one NIC, and 71 on the other?

Any feedback would be strongly appreicated
 
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