i have pretty basic questions regarding upgrade from CUCM 5.1(3) to CUCM 8.6
but leading into it would take some time - ..
customer is moving from CUCM 5.1 to 8.6 and of course changing HW..
fresh install and copying the config is always an option but we would like to avoid it if possbile since they have pretty complicated config..
so, having in mind that upgrade from 5.1 to 8.6 isn't supported directly here is an option:
1. install 5.1.3 on staging server which HW supports 5.1 and restore the production config using DRS from original server..
2. upgrade it to for example to 6.1.4 and take DRS backup..
3. install 6.1.4 to another staging server which HW supports both 6.1.4 and 8.6..
4. on that server restore the 6.1.4 config using DRS from previous staging server..
5. on that second staging server upgrade 6.1.4 to 8.6 and take DRS backup..
6. finally install 8.6 on new production server ( UCS C-series ) and restore the config using DRS from seconds staging server..
7. license 8.6 and that's it..
so, this is an option..
my questions are:
1. does this plan sounds reasonable or there is a better approach?..
2. what about licensing?..do we need to ask licensing team for temporary licenses for intermediate versions including 5.1.3 on different MAC then original,after that 6.1.4 on both staging servers and 8.6 on second staging server?..
3. do we need to license system in order to use DRS on each or it doesn't have anything with it since we're just using it to move config accross version ?..
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
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