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Beginner

NPIV/NPV in UCS

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.

12 REPLIES 12
Cisco Employee

Re: NPIV/NPV in UCS

This sounds like an exam question.......?

Advocate

Re: NPIV/NPV in UCS

mds.png

 

The NPV switch above is the UCS FI, the blades vhba are N-Ports, connecting to a F-Port of the UCS FI. The MDS has to be in NPIV mode !

 

Beginner

Re: NPIV/NPV in UCS

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?

Advocate

Re: NPIV/NPV in UCS

Advocate

Re: NPIV/NPV in UCS

Beginner

Re: NPIV/NPV in UCS

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?

Advocate

Re: NPIV/NPV in UCS

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.

TF-TNP link between an F port in the NPIV core switch (ToR in your case) , and an NP port in the NPV switch (UCS FI in your case):
 
Enable the F port trunking and channeling protocol on the MDS core switch:
switch(config)# feature fport-channel-trunk
Beginner

Re: NPIV/NPV in UCS

Thanks for continuing forward with the discussion Walter. I still don't fully understand the basics of the port types. Could you label the attached diagram?

Advocate

Re: NPIV/NPV in UCS

Hi

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;

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/UCS_CVDs/flexpod_esxi65u1_n9fc.html

mds.png 

Beginner

Re: NPIV/NPV in UCS

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.

Advocate

Re: NPIV/NPV in UCS

Beginner

Re: NPIV/NPV in UCS

No it's not. It's my relentless pursuit of knowledge.

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