While that particular DocWiki does suggest that it is no longer needed to disable Large Receive Offset on ESXi 4.1 with CUCUM 8.6 and above; you should also note that one of the specific issues having LRO on can cause is consistent CPU pegging for the UCOS guests (wouldn't be the first time something didn't work the way Cisco's docs say it should).
Please also review: https://supportforums.cisco.com/document/95886/disable-lro-ucs-uc-application-deployments Again, I can't say beyond a shadow of doubt that this is the issue anymore than anyone can say that it isn't. I would also look into the RAID drivers as well as all the physical connections on the UCS boxes. Thanks, rh From: [email protected] Date: Mon, 17 Nov 2014 14:30:21 -0700 Subject: Re: [cisco-voip] VMware 5.5 To: [email protected] CC: [email protected]; [email protected]; [email protected] That page specifically says you don't have to disable LRO if you are above 4.1 esxi with8.6 CUCM. Martin, which version of 5.5 are you on? GA, update 1 or 2? I recently ran into an issue with a customer on 5.5 u1 and too new of raid drivers on the card and had to downgrade the drivers. Wasn't causing 100% cpu, but very slow drive access times. So checked your vmware version and compatibility on the hardware you are running. On Mon, Nov 17, 2014 at 11:59 AM, Ryan Huff <[email protected]> wrote: Martin, Have you disabled Large Receive Offset (LRO) on all the Elastic Sky hosts? http://docwiki.cisco.com/wiki/Disable_LRO Thanks, Ryan Huff CCIE Collaboration (Written), CCNP Voice, CCNA Voice, CCNA Route & Switch, CCNA Wireless UCCX Specialist From: [email protected] To: [email protected] Date: Mon, 17 Nov 2014 18:06:51 +0000 CC: [email protected] Subject: Re: [cisco-voip] VMware 5.5 So 5.5 is supported with CUCM 9.1.x So the question is: Why do I have CUCM at 100% CPU? Only hard reset helps at this point. Thanks, Martin From: James Buchanan [mailto:[email protected]] Sent: Monday, November 17, 2014 1:10 PM To: Martin Schmuker Cc: Cisco VoIP Mailing List Subject: Re: [cisco-voip] VMware 5.5 Hello, Whenever you are looking for answers on UC virtualization, look here: http://docwiki.cisco.com/wiki/Virtualization_for_Cisco_Unified_Communications_Manager_%28CUCM%29 Thanks, James On Mon, Nov 17, 2014 at 5:36 AM, Martin Schmuker <[email protected]> wrote: Guys, since 3 weeks we are running our UC Environment (CUCM, Unity Cxn, IM&P) on ESXi 5.5. At Friday we setup new vCenter 5.5 and added the esx hosts. Since saturday, all machines are stuck in 100% CPU after a few hours. Sometimes all machines at the *same* time! They don’t reply Ping (ICMP Echo), and CPU is at 100%. CUCM and Cxn are on 9.1(2)SU2a (9.1.2.12901-3). Someone has any idea? Is 9.1.x not supported on vSphere 5.5? Thanks, Martin _______________________________________________ cisco-voip mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-voip _______________________________________________ cisco-voip mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-voip _______________________________________________ cisco-voip mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-voip
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