I am continuously told by Cisco UC engineers you cannot live vMotion CUCM and CUC, yet the Cisco Virtualization Wiki says otherwise. Anyone care to elaborate?
If the UC app is listed as "Supported with Caveats", which CUCM and CUC are, then support is as described below:
Migration of UC VMs that are live and processing live traffic is supported, but note that Cisco testing cannot cover every possible operational scenario. Testing has shown there is a slight risk of calls in progress being impacted for a few seconds as the migration occurs, with worst case result of the affected calls being dropped. If vMotion is suspected as the cause of dropped calls, customers should gather appropriate application logs as well as performance data from VMware vCenter and send to Cisco TAC for analysis.
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