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Dell PowerVault MD32xxi Configuration Guide for VMware ESX4.1 Server Software

Switch Name Num Ports Used Ports Configured Ports MTU Uplinks

vSwitch2

PortGroup Name VLAN ID Used Ports

iSCSI6

iSCSI5

iSCSI4

iSCSI3

iSCSI2

iSCSI1

You can see that there are two vmnics in each uplink for each VMkernel Port. This is what we need to

change so that only a single vmnic is in each uplink and that we manually load balance them across all

available VMkernel Ports.

To configure this process via CLI first note the vmnic number of the NICs you want to remove and type the

following command:

esxcfg-vswitch –p iSCSI1 –N vmnic3 vSwitch2

What this will do is remove vmnic3 from VMkernel port iSCSI1 so that just vmnic2 is on iSCSI1.

We then need to do the same thing for the other 4 VMkernel ports making sure to remove vmnics so that

an equal number of VMkernel ports are on each vmnic (3 per vmnic).

esxcfg-vswitch –p iSCSI2 –N vmnic3 vSwitch2

esxcfg-vswitch –p iSCSI3 –N vmnic3 vSwitch2

esxcfg-vswitch –p iSCSI4 –N vmnic2 vSwitch2

esxcfg-vswitch –p iSCSI5 –N vmnic2 vSwitch2

esxcfg-vswitch –p iSCSI6 –N vmnic2 vSwitch2

In an example where there are 3 or more vmnics, you would remove each one from the vSwitch to make

sure there is only a single vmnic per uplink.

To verify that this was done correctly type the following command:

esxcfg-vswitch –l

The output will look similar to this:

Switch Name Num Ports Used Ports Configured Ports MTU Uplinks

vSwitch2

PortGroup Name VLAN ID Used Ports

iSCSI6

iSCSI5

iSCSI4

iSCSI3

iSCSI2

iSCSI1

Uplinks

9000 vmnic3,vmnic2

vmnic2,vmnic3

9000 vmnic3,vmnic2

vmnic3

vmnic2

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