I do a similar, but supported process. I take DRS backups and then restore on servers in a sandbox VLAN. Works well. Make sure you check your phone firmware and upgrade to the current version before the cutover or all your phones will have to upgrade on cutover.
Also make sure you don’t change Hostname/Ip addresses in the sandbox as that will cause your ITL to regenerate and cause issues with phone configuration changes after cutover. Thanks Tommy Tommy Schlotterer | Systems Engineer Presidio | www.presidio.com 20 N. Saint Clair, 3rd Floor, Toledo, OH 43604 D: 419.214.1415 | C: 419.706.0259 | [email protected] From: cisco-voip [mailto:[email protected]] On Behalf Of Scott Voll Sent: Tuesday, October 25, 2016 2:43 PM To: [email protected] Subject: [cisco-voip] Not supported I'm sure..... but what do you think? So my co-worker and I are thinking about upgrades. we are currently on 10.5 train and thinking about the 11.5 train. What would be your thoughts about taking a clone of every VM. CM, UC, UCCx, CER, PLM, placing it on another vlan with the same IP's. NAT it as it goes onto your network so it has access to NTP, DNS, AD, etc. do your upgrade on the clones. Then in VM ware shut down the originals,and change the Vlan (on the clones) back to the production vlan for your voice cluster. it would be like a telco slash cut. 10 minute outage as you move from one version to the other. Thoughts? Scott This message w/attachments (message) is intended solely for the use of the intended recipient(s) and may contain information that is privileged, confidential or proprietary. If you are not an intended recipient, please notify the sender, and then please delete and destroy all copies and attachments. Please be advised that any review or dissemination of, or the taking of any action in reliance on, the information contained in or attached to this message is prohibited.
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