Henri
Contributor
Contributor

vSphere 6.5 & Etherchannel & only 2 10Gbit Port with iSCSI

Hi,

have here some Dells with just 2 10Gbit ports. We are a bit limited on the server and switch side according port.

I would like to define a  vSwitch to the 10Gbit switch with Etherchannel (to serve all VLANs, NFS and iSCSI).

I'am aware that the configuration does not work with iSCSI.


Therefor I defined single port port groups according KB 2045040 and http://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-multipathing-confi... .


This seams to work, but i got some iSCSI recovery issue, even with one uplink only.

Any idea if this will work with "Route based on originating port id" on the port group level, even with Etherchannel switched on?


Currently I have disabled the Etherchannel and ran with "Route based on originating port id" on the vSwitch level.

But this seams no optimal for the rest of the traffic. The bandwith (2*10Gbit) will be sufficient in any case.


Thanks


Henri



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hussainbte
Expert
Expert

IP hash is not supported with iSCSI.

If the configuration is done as per the guide you should have multiple paths to each LUN. If the array supports use round robin path selection policy.

Also you can try enabling Jumbo frames to get better performance over iSCSI.

iSCSI and Jumbo Frames configuration on VMware ESXi/ESX (1007654) | VMware KB

If you found my answers useful please consider marking them as Correct OR Helpful Regards, Hussain https://virtualcubes.wordpress.com/
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