How to see the EVEN number IOM backplane ports?

[SIMMN]

With in UCS manager and under Equipment, Chassis, Chassis #, IO Modules, IO Module #, Backplane Ports, why I only see the ODD number ports? Is it because there is only VIC1340 card installed in the B200M4 blades? If so, will the EVEN number ports show up if there is also a mezzanine card installed?

The UCSM is v3.1(2E) and 2208XP IOM.

Also, with this current setup for a fully populated 5108 chassis, how many vNIC should each blade has, 8 or 4?

[Walter Dey]

see http://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-b-series-blade-servers/b200m4-specsheet.pdf

which under Network Connectivity p57ff shows the possible configurations for IOM 2104/2204/2208.

Essentially 2104 has one, 2204 two and 2208 4 backplane connections per Blade slot.

and the VIC13xx/12xx essentially have 2 backplane connections per fabric, (with 1 or 2 adaptors, without extender); One VIC13xx/12xx with extender has 4 backplane connections per fabric. 

[SIMMN]

I went through the doc and understand the link configuration options between IOM and Adaptor card. But I guess I am still a little bit confused is:

With 2208 IOM and a single VIC1340 installed per blade, how many backplane ports should be presented on the vsphere side? With my setup, the vsphere can see 8 ports. But there are only 16 ports (ODD number ones) inside UCSM.

I found answer for my confusion...The number of network adaptors showing in vsphere has nothing to do with the number of backplane ports listed in the UCSM... With VIC1340, there could be 256 NICs created to be presented in Vsphere...

[Walter Dey]

The answer to your question is:

Each 2208XP will provide 4 x 10Gb Host Interfaces (HIFs) to the 4 (KR Ports) to each blade slot (2 to the VIC1240 and 2 to the Mez Slot) (see previous post on this here

So to take your example a 2208 has 32 HIFs (Backplane Ports, if viewed in UCSM) the first 4 map to Slot 1 (ports 1 + 3 to the mLOM and ports 2 and 4 to the Mez Slot) so your M3 Blades with the Port-Expander will light up all four of these Blackplane ports.

A port channel is automatically configured between a blade i/o adaptor and the IOM, and a new port channel (if you say yes to port channel) is done between IOM and FI.

You never see this backplane channels outside of UCS, eg. the ESXi