MAC Address Conflict with ESXi vmkernel NIC on Cisco UCS Blades
This guide will show you some tips of how to troubleshooting MAC address conflicts on ESXi and Cisco UCS level.
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Cisco UCS Error: Applying moref properties. Remote-Invocation-Error.
Applying moref properties failed on Cisco UCS.
Cannot Open Cisco UCS KVM Console By Java
Cannot run KVM console program because your system deployment.config file states that an enterprise configuration file is mandatory.
Private IP Address Routes to L3 Subnet on Dual vNIC VM
It’s not easy for me to describe the issue in one line on the title. Let me give some background here. I have 2 set of VMs. Set 1 has VM A & VM B. Set 2 has VM C & VM D. Each VM has a vNIC configured with a private IP address. VM … Read more
Vlan ‘xxx’ resolved to unsupported VLAN ID in Cisco UCS Manager
You may need only 1 IP address for blade console in Cisco UCS Manager. You can follow Understanding “Management IP” of Cisco UCS Manager to configure it. You may see warning “Vlan ‘xxx’ resolved to unsupported VLAN ID” when you delete existing inbound and outbound IP pools if you are trying to clean up existing … Read more
Understanding “Management IP” of Cisco UCS Manager
Benefit of using Inbound Management IP Address for Cisco UCS Blades is it’s faster than outbound. But how to configure it?
“x/xx on FI-A is connected by a unknown server device” on Cisco UCS
You may see following errors in ‘info’ category of error messages in the Cisco UCS Manager after upgrading infrastructure firmware to 3.2.x. “x/xx on FI-A is connected by a unknown server device” This is bug documented in CSCvk76095. You have to reset the port on FI to fix it. Go to “Equipment” in Cisco UCS … Read more
Show CDP Neighbor of Cisco UCS Uplinks
There are two ways to know which network switch ports the network uplinks of Cisco UCS Fabric Interconnects are connected to. By CLI SSH to the Cisco UCS Manager. Connect to FI-A. # connect nxos a Show neighbor of network uplinks. # show cdp neighbor interface ethernet <port num> By PowerShell Make sure Cisco PowerTool … Read more
“default Keyring’s certificate is invalid” in Cisco UCS Manager
You may see following error in Cisco UCS Manager: default Keyring’s certificate is invalid The reason is Admin -> Key Management -> KeyRing default is expired. It’s not possible to delete or change the KeyRing in GUI. You have to log in to SSH of Cisco UCS Manager and run following commands (The strings after … Read more
A Huge Amount of Warnings of “Image is Deleted” in Cisco UCS Manager
A few days ago, I deleted some older firmware packages in Cisco UCS Manager. Suddenly more than 100 warnings were generated. The error messages are similar below: blade-controller image with vendor Cisco System Inc……is deleted Cause: image-deleted Clearly, it’s triggered due to packages deletion. But all of my service profiles and service profile templates were … Read more