Trying to migrate an existing 10.5 installation w/ a Pub/Sub to a new 15 cluster.  I had planned to use PCD, but I need to re-use the existing ip addresses but also keep the outage window as small as possible.  I don't recall how long the outage wind...

It's been a little while since I used PCD and wanted to double check a couple of questions (this is a 10.5 to 15 migration): 1.) If I'm reusing the same hostname and ip addresses (or different hostname but same ip) from the existing CUCM cluster, can...

With the requirement to upgrade ESXi in order to be in a supported state when upgrading CUCM, what would be the correct why to get licensing now that Broadcom has purchased VMware?  I was able to find the download links on the Broadcom website, but w...

Currently I have a 2 node CUCM 12.5 cluster running on ESXi 6.5 that I'm looking to get to version 15.  Based on the v15 upgrade guide this is possible, but CUCM v15 isn't supported on ESXi 6.5, or at least not tested.  Is the best option to try to d...

Working on a new UCS C240 that boots into the shell rather than VMware as I expected it to. I have the CiMC setup but was checking on the best path forward.  The boot menu doesn't seem to list any drives or flash to boot from either. In the past I be...