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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'>I would use the LAB server for all servers moving them one by one “swinging” them over to VM. Most partners and customers think they can install versions prior to 8.0 on VMWARE this is an UNSUPPORTED configuration even if you move to VMWARE on 8+.<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'>Now you have a production copy running in VMWARE and you can switch everything over by swapping switchports.<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><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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>Ryan Hitch<br><b>Sent:</b> Friday, May 04, 2012 4:54 PM<br><b>To:</b> cisco-voip@puck.nether.net<br><b>Subject:</b> [cisco-voip] CUCM Bridge Upgrade Question 7.1 to 8.6<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id=yiv1134542064><div><div><div><div><p class=MsoNormal style='background:white'><span style='color:black'>I am planning an upgrade for a (3) node 7835-H1 cluster running 7.1(5)SU2 to a (3) node cluster running 8.6(2)a on VMs.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Since these servers only support a bridged upgrade I was wondering if I could do the following to reduce the risk and amount of downtime required for the extended "refresh" upgrade.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>1. Install 7.1(5)SU2 on a 7845-H2 lab server<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>2. Perform a DRS restore on this lab server from the production 7.1(5) publisher<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>3. Upgrade the lab server to 8.6(2)<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>4. Perform a DRS backup of 8.6(2)<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>5. Restore the DRS backup on 8.6(2) Publisher VM (pre-built in an isolated environment using the same IP address).<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>6. Build Subscriber VMs in isolated lab environment using the same IP addresses.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>7. Switch routing from the production environment to the pre-built lab environment.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>I find this very appealing since our original cluster will still be running untouched in case we have to switch back.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Any concerns with this "modified bridge" approach?<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>The only concern that I see is that the subscribers will not be connected to the lab publisher server when I do the upgrade from 7.1 to 8.6.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Is that going to be an issue? Any other concerns?<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>I see a few posts with similar questions, but I just want to be clear about the subscriber portion.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>I do not think that the disconnected subscribers should matter, but would love to hear from someone who has used this method.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'>Ryan<o:p></o:p></span></p></div></div></div></div></div></div></div></body></html>