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iSCSI with 4 NICs - only 2 being fully used?

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sgladio
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iSCSI with 4 NICs - only 2 being fully used?

Post by sgladio »

Hi everyone,

I have the following setup

iSCSI NIC 1 - VLAN 10 - 10.10.10.10
iSCSI NIC 2 - VLAN 11 - 10.10.11.10
iSCSI NIC 3 - VLAN 10 - 10.10.10.11
iSCSI NIC 4 - VLAN 11 - 10.10.11.11

All 4 are registered as Portals for Tag 1
All LUNs are assigned to Tag 1


ESX1 NIC 1 - VLAN 10 - 10.10.10.101
ESX1 NIC 2 - VLAN 11 - 10.10.11.101

ESX2 NIC 1 - VLAN 10 - 10.10.10.102
ESX2 NIC 2 - VLAN 11 - 10.10.11.102

All LUNs are set in VMWare to be accessed via Round Robin.

Everything connects, VMWare shows the right number of paths to the LUNs and in general it's all working just fine.

The problem is when I look at the graphs under "Status - Graph" it shows traffic in and out on iSCSI NIC 1 and iSCSI NIC 2, however for iSCSI NIC 3 and 4 it ONLY shows traffic in.

Any idea what the deal is here? Why would 2 of the NICs for iSCSI only show traffic in? What am I missing here?

Thanks in advance for any help!
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