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ESX 4.0 VSphere MPIO to Openfiler iSCSI LACP cannot get more than 110MB/sec

Asked by dwright1542 in VMware, Storage Technology

Tags: iSCSI, LACP, VMWARE, VSPHERE, ESX, MPIO, 802.3ad

This is a proof of concept for rolling out iSCSI in our environment.  The Openfiler forums have been zero help.  

I've got an ESX 4.0 Server connected via a Dual  Intel 1000/MT to a Dlink DXS-3227 switch.

The ESX 4.0 server is setup for MPIO in round robin.  

I also have an Openfiler ISCSI box connected to the 3227 switch via LACP thru Dual Intel 1000/MT cards.

The OF box can easily put out 300Meg/sec.  

I am hosting VMDK's on the OF box.  Everything runs perfect.  However when really stressing the system, I can only get 110meg out of the OF box.    

Running iftop on the box shows only 1 of the 2 LACP'd NICs on the OF box getting traffic, even though I see both MPIO IP ports on ESX getting 1/2 the traffic.

anyone have any ideas on how to set this up properly?   What am I missing?  
[+][-]10/13/09 01:15 AM, ID: 25557861Expert Comment

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