<div dir="ltr"><div>I'd like to run this by some of you that might have gone through this before or have investigated it.</div><div>I'm upgrading a Unity Connection 8.5 cluster (currently on MCS) to 9.1 on VMware without a loss of service.</div>
<div>Here's the plan</div><div>Take a DRS backup of the system</div><div>reorder CUCM RLs so calls hit the subscriber node first (if needed)</div><div>take down the publisher node</div><div>rebuild the publisher node on VMware using the Cisco OVA</div>
<div>Install the publisher with the same settings (hopefully this won't alter the License MAC so we won't need to rehost?)</div><div>DRS restore the Publisher only</div><div>Take down the Sub</div><div><div>rebuild the Sub node on VMware using the Cisco OVA</div>
<div>Install the Sub with the same settings, joining it to the cluster</div><div> </div><div>Question: (Assuming we don't need to rehost the licenses etc) is it necessary to restore the subscriber from DRS at that point? or will replication take over (only self signed certs in use)</div>
<div> </div><div>The remaining steps seem fairly straight forward upgrading from 8.5 to 9.1</div><div> </div><div>screen shots of licensing pages to send to Licensing for 9.x license etc for ELM rehost.</div><div> </div><div>
Thoughts? Anything I'm missing, anything way to make it easier?</div><div> </div><div>Thanks in advance for any suggestions</div><div>Ted</div></div></div>