Hi Team,
we have CUCM 11.5 installed on BE6M server, the current ESXi version is 5.5, we are planning to upgrade ESXi to 6.5, when i check virtualization wiki for the compatibility it shows that 6.5 is supported (Supported Versions of VMware vSphere ESXi= 5.0 U1, 5.1, 5.5, 6.0, 6.5 (6.5 - VMFS 5 or 6, minimum OVA file version cucm_11.5_vmv8_v1.1.ova required, fresh install only); HX TRC 6.0 only)
Here I have a confusion , whether it says ESXi 6.5 only supports a fresh installation. Our CUCM initially installed as 10.5 and then upgraded to 11.5.
Please advise is it safe to upgrade the ESXi to 6.5 on this environment.
Regards,
Aneesh
