If I am upgrading from UCM 6.1 to UCM 7.1 on new hardware, and the hardware is "one step up" from a server perspective, will I have issues?
Today pub/sub on 7835's, new cluster will have 7845's. Can this be done via first loading new 7845 (pub/sub) with 6.1, then restoring backup of 6.1 we took onto new pub, then upgrading to 7.1?
We have 30 gateways and a large dial-plan, so we do not want to have to configure from scratch.
It HAS to be done the way you plan, you cannot restore info on different versions.
You install same exact version on new HW, restore the backup, make sure everything runs fine and then upgrade to 7.X
if this helps, please rate
Long time my friend, hope all is well with you (80 degrees in Calgary yesterday!)
You are most correct with your thinking here. The DRF backup/restore must be on the exact same version so this will be a two step process. The steps are nicely listed here (don't forget the Licensing aspect :);
Replacing the Publisher Node
Hope this helps!