We are having UCS C210 M2 (Active and Standby) server with ESXi 4.0 version and we want to upgrade it to ESXi 5.0.
Below are the Cisco Unified Applications running on present UCS server
CUCM Publisher and Subscriber are having version 188.8.131.5200-5 - 8.5(1)SU3
Unity Connection is running with version 184.108.40.20600-190 - 8.5(1)SU3
UCCX Publisher and Subscriber are running with version 220.127.116.1103-32 - 8.5(1)SU3
Unified Presence Server is running with 18.104.22.16800-5
Will there be any chanllenges if i upgrade ESXi to 5.0? Like Version dependeny? License Dependency?CIMC Dependecy? ect.
What is the Cisco best practice we can follow while doing this?