dns client order in member server

[Tien Ngo Thanh]

our domain we has 3 (1.1 , 1.2 , 1.3) server in DC and 2 server in DR(1.4,1.5) . should set dns client in all member is primary 1.1 secondary 1.2,1.3,1.4,1.5 or should set dns client in all member is primary 1.1 secondary 1.4,1.2,1.3,1.5 ?  please suggest help me.thanks

[#2]

Might work through this one for recommendations.

Disaster Recovery Site and Active Directory (Part 1 of 3) | Microsoft Docs

[#3]

@Dave Patrick: please suggest dns order in member server ?

[#4]

Some general recommendations here. List a local DNS server as primary, and others as secondary.

Best practices for DNS client settings - Windows Server | Microsoft Docs

[#5]

Because all DC in datacenter DC and DR . branch not host active directory and dns . so can set as below ?

- Head office

Primary 1.1

Second  1.2 ,1.3 , 1.4 , 1.5

- Branch 01 - 200

Primary 1.1

Second  1.2 ,1.3 , 1.4 , 1.5

- Branch 201 - 400

Primary 1.2

Second  1.1 ,1.3 , 1.4 , 1.5

If all server in Datacenter (DC) 1.1 , 1.2 ,1.3 offline then client still resolve DNS and login to by user domain normal ? all dc in dc and dr same site (default first site)

or should set primary dns is DC (1.1 or 1.2 or 1.3)and secondary DNS is DR (1.4 or 1.5)