<div>I currently have a cluster of 7 servers (7835) running CUCM 4.1(3). We have 8 new servers which will run 6.1(2), and our single existing cluster will be divided into two to segregate CTI traffic for the Call Center.</div>
<div> </div>
<div>Does anyone have a recommendation for the best methodology to follow for this upgrade? We would like to build the 2 clusters in the sandbox with all of the migrated information and licensing in place, then cut all at once if possible.</div>
<div> </div>
<div>What is the best way to handle getting DLUs generated. DMA would generate a single license file...we need 2 files. Do I have to build these new servers/clusters on 4.1 first then DMA them?</div>
<div> </div>
<div>I apologize if this has been covered and I missed it. <br clear="all"><br>-- <br>Dave Wolgast<br>Livonia, NY<br></div>