There are two different configuration options that may or may not complement one another – NPIV enabled VMs within ESXi, and End Host Mode for the FIs. What types of storage ports are they when not using NPIV for VMs?
Please correct the attached diagram. This is for FIs using the default End Host Mode.
Thanks for the response.
How are the ports configured with Top of Rack switches in between the FI and the Core - NP Ports? Are the ToR switches still considered NPV edge switches, or are they just logically inseparable from the core?
Also how does VMwares implementation of NPIV for VMs play into this? Do the port types change for the ToR/Core switches?
Have a look at the following URL's: I am not so sure, if NPIV is supported on UCS HBA ? at lease for a long time it wasn't:
And chaining of 2 NPV is not supported: NPV (UCS FC End Host Mode) -- NPV -- NPIV
On the attachment I included in the original post, I had a question mark next to the interface from the NPIV switch to the ToR (or FI). Is this a TNP port?
This design doesn't make sense at all; your NetApp is connected to 2 different MDS ! perfect, it's a physical dual fabric; then you merge everything to a single ToR, which is a single point of failure.
Anyway, your ToR must be NPIV, and the ports between MDS and ToR are E-Port's.
I mentioned several times, that your FC design is simply not correct and state of the art.
Take the time and go through this document, and you hopefully understand what I mean;
That is one design. For a large datacenter not everything will run directly from the FI to the core. The original diagram was logical, not physical - I added another ToR to the latest diagram regardless.
Other than FlexPod architectures, do you have any other designs to share? The last place I worked had hundreds of terabytes of consolidated storage with multiple SAN switches. They had a FlexPod as well, but that wasn't the primary design.
Here a Whitepaper for large SAN design