Hi,
I have to upgrade a virtualized CUCM cluster (PUB, SUB1, SUB2, TFTP) version 8.6.2 SU3 to version 10.5.
As per documentation this should be a direct refresh upgrade and no need of PCD to do it.
Based on the documentation the main steps of the upgrade are:
-changing the OS to RHEL 6 (64-bit) and the Network Adapter from "Flexible" to "VMXNET 3” for the VM (shut down the VM and perform the changes)
-run ciscocm.version3-keys.cop.sgn.
-run ciscocm.free_common_space_v1.1.cop.sgn
-run the 10.5 ugrade file in following order: PUB, TFTP, SUB1, SUB2
The existing 8.6.2 OVA, 7500 users is using 2 vCPU and 80GB for each vdisk (total of 160GB).
The 10.5 OVA, 7500 users requires 1 vCPU and 110GB for the vdisk.
Does anybody know if I have to run the ciscocm.free_common_space_v1.1.cop.sgn to increase the space to 110GB on each vdisk (even if the total size is 160GB on 2 vdisks which is more then 110GB required on 10.5 OVA)?
Cisco engineer said that this is not possible as well that I can not change the OS to RHEL 6 (64-bit) on the existing server/VM (ESXi 4.1 U3.
He recommends to create a new VM using the new OVA and use the DRS and restore process for performing the upgrade.
Any input/advise will be appreciated!
Thanks.
