![]() Navigate to Storage Adapters, select the iSCSI Adapter, select Network Port Bindings and Add We can now Bind these Port Groups to the iSCSI Initiator. Repeat these steps for second VMkernel adapter.Īfter completing the steps you should have two VMkernels, each assigned to their own Port GroupĪt this port we have our VMkernels and Port Groups configured. On the Ready to complete window, select Finish, and the VMkernel adapter has been configured. In the IPv4 settings page, select Use static IPv4 settings and make sure to assign an IP on the same subnet as the iSCSI target On Port Properties, the defaults are fine Navigate and select the Port Group that will be used for iSCSI VMkernel Network Adapter should be the default, press Next Navigate to Hosts and Clusters > Select the Host> Browse to C onfigure > VMkernel adapters and finally Add Networking I’ve noticed that in vSphere 6.7 this can be configured directly from the Port Group, but I’ll go through the path that’s relevant to older versions These will be used to initiate the connection to the iSCSI target. Now we can start configuring the VMkernel Adapters. Repeat this configuration on the second Port Group and use its own Physical Adapter Since we only want a single Physical Adapter assigned to each Port Group, move rest of the Uplinks to Unused ![]() Observe that all Physical Adapters are flagged as Active Uplinks Right click the first Port Group and Edit Settings If there is more the one active uplink, the port group will not be a compatible option in the Network Port Binding window of the iSCSI Adapter One Uplink needs to be Active and the rest Unused. ![]() Now we need to specify the active Physical Adapter for each Port Group. Repeat this configuration to create second Port Group If a host only has two Physical Adapters and they can’t use both be used for iSCSI, what would carry all the other traffic? By assigning the VMkernels to Port Group on a shared vSwitch, you then allow iSCSI to be multipathed while sharing the same uplinks as the vSwitch and all other traffic.įollow the below steps to create a Port Group.Įnter the name for the first Port Group and select NextĬonfigure settings can be left as the default This would be required on systems with limited Physical Adapters. This can be achieved by dedicating a iSCSI vSwitch for each VMkernel or having both VMkernels on the same iSCSI dedicated vSwitch like the above illustrates.Īnother configuration, which I decided to use for this was VMkernel to Port Group mapping on a Shared vSwitch. Each vSwitch will need a Physical Port mapping, which will exclusively handle iSCSI traffic. The VMkernel to vSwitch mapping would be suitable on hosts with excess Physical Adapters. All configurations will work the same, however the reasons for choosing between them may depend on the environment. There are three configurations we can use. The first thing to do is create the network adapters to handle the iSCSI traffic. Since I’ve only configured active-passive multipathing before, I thought this would be a great opportunity to try configure iSCSI with multiple active paths and document the process. It was having major issues communicating with the SAN, so I don’t think it was configured correctly. I came across a weird multipathing configuration on a customer environment that was supposed to be using an active-active configuration across 4 NICs. Configuring iSCI Multipathing on vSphere 6.7
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