Solved: Re: how to MIGRATE from CUCM 7.1.5 to CUCM 8.6.2?

Sergey Balyura · ‎06-07-2018

Hi everyone! I have two CUCMs - CUCM 7.1.5 and CUCM 8.6.2 Both of them are on hardware platforms. CUCM 7.1.5 is in a production with bought licences. CUCM 8.6.2 is only installed without any configuration. But with bought licences already. So I need to MIGRATE from the 7.1.5 to 8.6.2 without the loss of data. All I've found is about the UPGRADE from 7.1.5 to 8.6.2 And this is not my case. I need the MIGRATE Please show me the right way of the migration, please :)

Nipun Singh Raghav · ‎06-07-2018

So exactly my point, why migrate when you can upgrade and save all the hassle.

Two ways -
1. Upgrade your old cucm to 8.X, take a DRS backup and restore on the new hardware. Licences will need to be rehosted.
2. Take a DRS backup on 7.X server, restore to a 7.X on the new hardware and then upgrade the new hardware to 8.X to complete. License rehost is still required since there will be a mac address change. I am not sure however
if GLO is still doing rehosts for 8.X etc.

Nipun Singh Raghav
"We cannot solve our problems with the same thinking we used when we created them"

View solution in original post

Simon Coventry · ‎06-07-2018

Hi,

You'll need to build a version 7.1.5 on your new hardware/VM and restore from backup onto new platform. you can then upgrade to 8.6.2.

If you are unable to re-build the 8.6.2 hardware then your only option is to use the import/export tool to export all configuration from the v7 and then import into v8 but you would lose historic CDR info.. but this retains configuration.

Not ideal you have an 8.6.2 already which is licensed when Cisco have/had a migration path a few years ago....

Hope this is useful