[cisco-voip] VMware 5.5

[Ryan Huff]

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: wokka at justfamily.org
Date: Mon, 17 Nov 2014 14:30:21 -0700
Subject: Re: [cisco-voip] VMware 5.5
To: ryanhuff at outlook.com
CC: ms at bilobit.com; james.buchanan2 at gmail.com; cisco-voip at puck.nether.net

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 <ryanhuff at outlook.com> 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: ms at bilobit.com
To: james.buchanan2 at gmail.com
Date: Mon, 17 Nov 2014 18:06:51 +0000
CC: cisco-voip at puck.nether.net
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:james.buchanan2 at gmail.com]


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 <ms at bilobit.com> 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





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