What is the best practice and Microsoft best recommended procedure of placing “FSMO Roles on Primary Domain Controller (PDC) and Additional Domain Controller (ADC)”??

Hi,

I have Windows Server 2008 Enterprise and have 2 Domain Controllers in my Company:

1. Primary Domain Controller (PDC)
2. Additional Domain Controller (ADC)

My (PDC) was down due to Hardware failure, but somehow I got a chance to get it up and transferred(5) FSMO Roles from (PDC) to (ADC).

Now my (PDC) is rectified and UP with same configurations and settings.  (I did not install new OS or Domain Controller in existing PDC Server).

Finally I want it to move back the (FSMO Roles) from (ADC) to (PDC) to get UP and operational my (PDC) as Primary. (Before Disaster my PDC had 5 FSMO Roles).

Here I want to know the best practice and Microsoft best recommended procedure for the placement of “FSMO Roles both on (PDC) and (ADC)” ?

In case if Primary (DC) fails then automatically other Additional (DC) should take care without any problem in live environment.

Example like (FSMO Roles Distribution between both Servers) should be……. ???

1. Primary Domain Controller (PDC) Should contains:????
   • Schema Master
   • Domain Naming Master
2. Additional Domain Controller (ADC) Should contains:????
   • RID
   • PDC Emulator
   • Infrastructure Master

Please let me know the best practice and Microsoft best recommended procedure for the placement of “FSMO Roles.

I will be waiting for your valuable comments.

Regards,

Muhammad Daud