08-25-2022 07:19 AM
Hi
I need to upgrade CUCM/CUC 11.0.1.21900-11 to version 12.5.1.10000-22
I have server ucsc-c220-m4s and Esxi 5.5
I first plan to upgrade ESXI 5.5 to 6.7 : I will like to know if my server can support ESXI 6.7
Kindly help with documentation or yutube tutorial that you use for the ESXI upgrade and CUCM/CUC upgrade 11.x to 12.5
Thanks so much
08-25-2022 07:44 AM
That information is on VMware's compatibility site, you can find it very easily, as well as the ESXi upgrade instructions, you can find all you need with just a few minutes in google.
As for CUCM/CUC upgrade:
Mandatory reading regardless of what upgrade path you choose, all for target version
A) Upgrade and migration guide
B) Release Notes
C) Compatibility matrix (depending on product might be a standalone doc, or within any of the other docs I mention)
D) README from ova
E) HW/ESXi compatibility
After reading all of the above, you'll have all the information to plan the upgrade.
08-25-2022 08:06 AM
Apart from the amazing information already received from Java I would recommend you to upgrade to a newer version of CM 12.5 than the one you have listed as that is the base release of the 12.5 release train. There are 6 SU releases out there for 12.5, my advice would be to go for 12.5 SU6.
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