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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The concern is what happens in a failover, can a larger server failover to a lower class platform overlay and handle the same load, usually not. I would keep them same platform overlay. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If you have 10 mailboxes on great big 7945 and you failover to 7825 no worries. But 20,000 mailboxes failing over to 7825 might be a disaster…Same concern with CallManager servers. In CCM you could have a larger server backup two+ smaller servers with oversubscription ratio assuming both wouldn’t fail at same time.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/supported_platforms/8xcucspl.html#wp658926">http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/supported_platforms/8xcucspl.html#wp658926</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>David Lee<br><b>Sent:</b> Tuesday, March 22, 2011 8:50 PM<br><b>To:</b> cisco-voip@puck.nether.net<br><b>Subject:</b> [cisco-voip] Question about Unity Connection 8.x cluster - mix different server platforms?<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Hello,</span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>I understand that for a UCM cluster, you can use different servers (i.e. 7825/7835/7845) in the same cluster. It is less clear whether you can do that in a Unity Connection cluster. For example, can I run a Unity Connection 8.x cluster with both a MCS-7835 and MCS-7825 servers as publisher / subscriber? I understand that the capacity will be based on the smaller server, but I like to know if this is a supported architecture.</span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Thanks in advance.</span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><o:p></o:p></p><p style='margin:0in;margin-bottom:.0001pt;background:#F8FAFD'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>-Dave</span><o:p></o:p></p></div></body></html>
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