Cisco UCS and the dreaded unsupported-connectivity error

Published On: 2012-02-20By:

So while installing a new Cisco UCS system with the one of the newer builds of the firmware which was 2.0(1s) we were getting an error with both chassis which said they were in an unsupported-connectivity state.  The config that we setup was pretty basic and straight forward.  We have two UCS Fabric Interconnects, with two chassis, and two cables from each blade in each chassis going to the Fabric Interconnects.  There’s a diagram over there of what the system looks like for one of the two chassis (I love the fact that the management app makes nice diagrams like this).

When you configure a Cisco UCS system you tell the system how many cables the Fabric Interconnects should use to discover each chassis.  At least that is how the screen is worded.  What the setting actually means is how many cables should the Fabric Interconnects expect to see between each Interconnect and each blade in the chassis.  We configured the setting for “Platform Max” in case we decided to add more cables later even though we only had two cables now, and only planned on having 2 cables (as shown in the diagram) for the time being.  When we were set this way we had this strange unsupported-connectivity state error showing up for each of the chassis.

To fix this problem we had to change the discovery policy from “Platform Max” to 2 as shown in the below screenshot.

To make this change in the UCS Manager and select the equipment tab in the left menu.  On the right select Policies tab.  In the new lower tab menu select “Global Policies”.  From there you can change the Chassis Discovery Policy which you can see in the screenshot below.

Hopefully this helps you if you run into this problem.


Contact the Author | Contact DCAC

One response to “Cisco UCS and the dreaded unsupported-connectivity error”

  1. […] and stores it as a profile. This creates it easy to muster or reinstate server hardware, since UCS Manager can be used to duplicate or automatically reassign addresses and pattern information to new or […]


Globally Recognized Expertise

As Microsoft MVP’s and Partners as well as VMware experts, we are summoned by companies all over the world to fine-tune and problem-solve the most difficult architecture, infrastructure and network challenges.

And sometimes we’re asked to share what we did, at events like Microsoft’s PASS Summit 2015.

Awards & Certifications

Microsoft Partner   Denny Cherry & Associates Consulting LLC BBB Business Review    Microsoft MVP    Microsoft Certified Master VMWare vExpert
INC 5000 Award for 2020    American Business Awards People's Choice    American Business Awards Gold Award    American Business Awards Silver Award    FT Americas’ Fastest Growing Companies 2020   
Best Full-Service Cloud Technology Consulting Company       Insights Sccess Award    Technology Headlines Award    Golden Bridge Gold Award    CIO Review Top 20 Azure Solutions Providers
Share via
Copy link