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CUCM 10.5 upgrade

I have a few questions that I would need your help with in regards to the 8.6 to 10.5 upgrade.

1. why do i have to install the cop file to resize the vdisk whereas i can easily do the same thing from the vmware thick client without installing that file?

2. should i choose the option to 'switch version' after the upgrade of each cucm servers or manually switch versions once all the servers in the clusters are done upgrading?

3. can i put any allowed mac address for the vmxnet3 adaptor once i change the allocation type to manual?

4. is there anything to worry after i change the guest os from rhel 5-32 bit to rhel 6-64 bit prior to upgrade and keep running the existing cucm version for sometime? does it continue to work?


Thank you so much,  Khanal

  • IP Telephony