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Community Member

Virtual Machines tab in UCSM

If my UCS servers are running ESX, and I go to that server in my UCSM, then click on the virtual machines tab, I do not see anything. How does this process work? Is there a way that the UCS needs to know about the VM guests inside of the ESX host?

6 REPLIES
Cisco Employee

Virtual Machines tab in UCSM

This is strictly for VM-FEX.  If you haven't configured your host running a Cisco VIC adaptor with VM-FEX, you will not see any VM information in this tab.


http://www.cisco.com/en/US/netsol/ns1124/index.html

Regards,

Robert

Community Member

Virtual Machines tab in UCSM

Robert -

I do not understand the purpose of this VM-FEX? Is it software, harware? Does it have anything to do with my 2248 FEX's?

Cisco Employee

Virtual Machines tab in UCSM

VM-FEX in hardware.  The Palo VIC adaptor uses dynamic vNICs which get assigned directly to VMs.  This allows you to create port profiles in UCSM which have VLAN and QoS attributes assigned.

It's a similar concept to the 2248 FEXs in regard to how the interfaces are managed, but the 2200 FEXs are not involved in this respect here.  Just as a 2200 FEX's interfaces are managed by a parent N5K, a VM-FEX's (virtual) interfaces are managed by UCSM.

There is a good video series here which detail how to deploy VM-FEX, worth a watch.

http://infrastructureadventures.com/2011/09/29/deploying-cisco-ucs-vm-fex-for-vsphere-part-1concept/

Regards,

Robert

Community Member

Virtual Machines tab in UCSM

Is this something additional to purchase, or do my servers have it by default? How do I know if I have it if it is additional?

Community Member

Virtual Machines tab in UCSM

This doesnt seem like a performance boost when it comes to vm to vm on the same host communication.

Cisco Employee

Virtual Machines tab in UCSM

Requires a couple things.

1. You'll need the Enterprise Plus license in VMware

2. Your blades need the Cisco M81KR VIC network adaptor

Everything else included with UCSM by default.

It may not give a performance boost for VM - VM communication, but you can easily set and assign QoS policies directly from UCSM for your VMs.  Greatly simplifies QoS configuration found on legacy switches.

Regards,

Robert

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