Forum Discussion

Iron Contributor

Apr 20, 2019

How to Exchange can running on DC and DR ?

Hello current environment we can Active directory two DC and DR and same site (not configure site) is default first site and Exchange 2013 have 6 Mailbox Server in DC and 3 Mailbox server (...

2013

Exchange Server

msExchangeDude

Microsoft

May 10, 2019

Tien Ngo Thanh What does DC and DR stand for? are those the names of your Active Directory Sites?

It sounds like you want to run a simple 2:2 DAG which is perfectly acceptable, just remember that with an even number of nodes in the cluster, you will be using a file share witness to hold Quorum.

Best of Luck!

Tien Ngo Thanh

Iron Contributor

May 12, 2019

Hello

all exchange the same site and the same subnet .active directory only one site is "Default-First-Site-Name" .So the future if have DAG 2:2 then need one or two witness server ? if one witness on DC then if all server DC down then DR can up cluster and DAG normal ?

Thanks

msExchangeDude
Microsoft
Jun 19, 2019
Tien Ngo Thanh the numbers in the 2:2 ratio mean 2 servers in one site, 2 in another, so really you just want a 4 node dag all in same site (4:0 DAG). In this case, you would only need the one FSW, he just helps break ties between even votes.
- Tien Ngo Thanh
  Iron Contributor
  Jun 28, 2019
  msExchangeDude : If i have 2:2 (DC:DR) and one FSW in DC then if all server DC Shutdown then DR must up cluster manual ? or must install alternate FSW in DR ?