Linux 2.6 kernel VM problem on UCS SP with linux KVM

[vincent paulin]

                   Hi,

IHAC who configured  3 service profiles running the Linux-KVM virtualisation solution (ubuntu serveur 12.04 LTS).

He migrated Linux VMs from HP servers running the same Linux-KVM version to the service profiles.

Everything is OK with all linux VMs running a kernel version 3 (Freebsd 9.0 ou Ubuntu 12.04).

All VMs with a linux kernel version 2.6 (Freebsd 9.0 ou Ubuntu 12.04) have network problem on the Service Profiles (but work OK as-it on HP servers).

These VMs can only ping the VMs on the same Srvice Profile and the Linux-KVM server they are tied to.

They cannot ping the VMs on other SPs or machines out of the UCS solution (arp resolution problem)

If the customer updates a such VM to a kernel version 3 it works fine.

Unfortunatly he cannot do this update for all the VMs he's got.

Any idea ?

[Daniel Laden]

I assume since you mentioned 'SP', you are using Service Profiles and this is some UCS B-Series or C-Series integrated solution.  Advise your customer they are implementing unsupported OSes and most likely denied supported from TAC.

http://www.cisco.com/en/US/docs/unified_computing/ucs/interoperability/matrix/r_hcl_B_rel2.04.pdf

Operating System Interoperability Matrix

Novell, Oracle, Redhat are the supported linux variants in the current release.

Ubuntu claims not to support 12.04 on cisco hardware at this time.

http://www.ubuntu.com/certification/server/make/Cisco%20UCS/?csrfmiddlewaretoken=2bad1e15c5be00d90385920e85177fa6&query=&release=12.04+LTS&level=Any

It seems that earlier versions of Unbuntu is stated to be supported on Cisco hardware but not listed on Cisco support docs.  We can review that further if needed.

Feel free to check out the PDI Helpdesk and what services we can offer qualified Cisco partners.

http://www.cisco.com/go/pdihelpdesk

Thank You,

Dan Laden