Quick note on my preferred network config for Cisco UCS hosts – follow Cisco recommendations and use the hardware you have available to you – set your networks to utilise their native HA:
|SMB 1||A||SMB Multipath||No||Host Only|
|SMB 2||B||SMB Multipath||No||Host Only|
|iSCSI 1||A||MPIO||No||Host Only|
|iSCSI 2||B||MPIO||No||Host Only|
|iSCSI 1||A||MPIO||Yes||Guest Only|
|iSCSI 2||B||MPIO||Yes||Guest Only|
|Live Migration||AB||UCS||No||Host Only|
|Cluster HB||AB||UCS||No||Host Only|
|VM Networks (Trusted)||AB||UCS||Yes||Guest Only|
|VM Networks (Internet Facing / Non Trusted)||AB||UCS||Yes||Guest Only|
Let the UCS do the hard work maintaining connectivity – don’t bother using LBFO teams, vEthernets etc… just assign as many NICs as per your design requirements and keep all your host & guest data separate.
The example above shows iSCSI use for host and guest use, also SMB for host storage. FCoE storage (preferred) would be provided by HBA and not showing in your Ethernet NIC list.
If you have a NetApp and System Center suite as well, then you should be reading up about flexpod here