Windows Server Migration 2008 r2 to 2016

[Exet]

Hi All,

 

Currently we have two domain controllers both running server 2008 r2 the plan is to migrate these to freshly built windows server 2016 domain controllers.

 

First domain controller (dc01) has fsmo roles, dhcp

 

Then we have second domain controller (dc02)

 

Wanting to keep the same names & ips my plan is to decommission dc02, and remove it from the domain.

 

Then add new freshly built windows server 2016 with the same name and ip address as the old dc02 just removed from the domain, add it to the domain and then promote it to a domain controller.

 

From there I will then check if replication is working okay.

 

Then the next step is to migrate the fsmo roles and dhcp from the original old windows server 2008 r2 (dc01) to the new dc02 I had just promoted.

 

Then do the same again decommission the old dc01 and remove it from the domain.

 

Give my other new freshly built server 2016 the same name and ip as the old dc01, add it to the domain and promote it to a domain controller transfer the fsmo roles backover and then do dhcp.

 

Does this plan sound okay?

 

Thanks

[mukz]

That sounds right, where is ur current dhcp sitting? On dc1?

[Exet]

Great thanks for the response, yea dhcp is currently sitting on dc1

[psydii]

I'd build a third 2016 DC **First** migrate over all the FMSO roles, then follow your plan, with the added final step to transfer roles off DC03 and decomission it (though, why bother, 3 DCs is better than two)

 

This way you never drop to one DC so you have more resilience.

 

You could also put DHCP onto DC03 as an interim step.

[mukz]

Great thanks for the response, yea dhcp is currently sitting on dc1

 

In which case that also needs to be transfered to dc2. I would use this to do dhcp failover

[Exet]

Thank you both for your responses