<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>ok, this note answers my question... sorry for the traffic.<br><br>UC apps do not support CPU oversubscription. One VM vCPU must map to one physical core (not one logical core) (<a href="http://docwiki.cisco.com/wiki/Unified_Communications_Virtualization_Sizing_Guidelines" title="Unified Communications Virtualization Sizing Guidelines"> click here</a> for details).
<br><span><br><span name="x"></span>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)<br><span name="x"></span><br></span><br><hr id="zwchr"><b>From: </b>"Lelio Fulgenzi" <lelio@uoguelph.ca><br><b>To: </b>cisco-voip@puck.nether.net<br><b>Sent: </b>Thursday, August 9, 2012 5:52:26 PM<br><b>Subject: </b>Re: [cisco-voip] help explaining UC on UCS CPU requirements<br><br><style>p { margin: 0; }</style><div style="font-family: Verdana; font-size: 10pt; color: #000000"><span><br><br><span></span>OK, my reading was wrong for the C240 M3S. It has a total of 16 CPU, so 16x2.7GHz.<br><br>So either a total of 8 OVAs based on 1:1 vCPU:pCore, or 12 based on reservation.<br><br>The more I'm thinking about it, I'm thinking it's 8 since you want some extra CPU cycles for each server.<br><span></span><br></span><br><hr id="zwchr"><b>From: </b>"Lelio Fulgenzi" <lelio@uoguelph.ca><br><b>To: </b>cisco-voip@puck.nether.net<br><b>Sent: </b>Thursday, August 9, 2012 3:59:03 PM<br><b>Subject: </b>help explaining UC on UCS CPU requirements<br><br><style>p { margin: 0; }</style><div style="font-family: Verdana; font-size: 10pt; color: #000000"><br>I'm wondering if someone can help explain some of the UC on UCS CPU requirements that I'm seeing. I getting a little confused by some of the terminology and stuff in brackets.<br><br>When I read the <a href="http://docwiki.cisco.com/wiki/OVA_Template_Details_for_Unified_CM_Release_9.0" target="_blank">OVA requirements</a> for a 7500 user node, <span>it says 2 vCPU (with 3600MHz reservation) and physical load calibrated to </span>E5540 2.53 GHz.<br><span id="7cfbb40c-a4b1-4204-bd00-d872375142d4"><br>If I want to install this OVA on a </span>UCS C240 M3S (SFF) TRC#1 which has Dual E5-2680 (8-core, 2.7 GHz) do I do some sort of reservation of total CPU Hz available? Or is it simply a 1:1 core assigned, vCPU to pCPU?<br><br>The total Hz available is 8x2.7G=21.6GHz which means I could install 21.6/3.6=6 of these OVAs?<br><br>Or do you do CPU math, 8/2 = 4 OVAs allowed to be installed?<br><br>The math and disk space calculations seem much easier.<br><span id="7cfbb40c-a4b1-4204-bd00-d872375142d4"><span></span><br><br><br>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)<br><span></span><br></span><br></div></div><br>_______________________________________________<br>cisco-voip mailing list<br>cisco-voip@puck.nether.net<br>https://puck.nether.net/mailman/listinfo/cisco-voip<br></div></body></html>