Forum Discussion
Multiforest migration to Office 365
NunoAriasSilva - now the approach have got slightly changed.
It has basically 2 phases:
Phase 1 :
Keep any one of the Office 365 Tenant and leverage single AAD Connect to sync from all the 4 on-prem ADs to this Office 365 Tenant.
Phase 2:
Create the brand new Office 365 Tenant and leverage Skykick for tenant to tenant migration.
Let's focus on Phase 1 and
Is there any best practices to complete Phase 1?
Many thanks!
Hi Newlife,
The best way to archive the phase 1 please read the section "Multiple forests, single Azure AD tenant" on the following link https://docs.microsoft.com/en-us/azure/active-directory/hybrid/plan-connect-topologies.
After identity is implemented in place, that you can start migration.
Best Regards,
Nuno Árias Silva
NunoAriasSilva - Thank you for your prompt response.
Let's say, on Phase 1,
We'd only need to migrate just the ADs from Forest B, C, D to Forest A and not the Exchange/SP severs, will it be the same approach or do we need to leverage ADMT tool?
Another question is, in order to keep only one AAD connect to sync objects from all other ADs, where do we need to place the AAD server, is that on domain joined, or DMZ zone?
Please assist.
Hi Newlife,
You can use ADMT to migrate from Domain A to B and Etc, but depending on the final scenario.
The AAD Connect will need to access to all AD's.
Best Regards,
Nuno Árias Silva
