Home > Exchange > Create DAG (Database Availability Group) on Exchange 2010

Create DAG (Database Availability Group) on Exchange 2010

hai guys, I want to share you how to create DAG ( Database Availability Group) on exchange 2010, in my lab, I have implement exchange 2010 multirole CAS, HT and Mailbox

Server Name Role Site IP Production IP Private
DMG-DC001 DC 2008 r2 Default-First-Site-Name  
DMG-EXC001 Exchange Multi Role Default-First-Site-Name
DMG-EXC002 Exchange Multi role Default-First-Site-Name
DMG-DC002 DC 2008 R2 Brach  
DMG-EXC003 Exchange Multirole Brach

before you implement DAG, you must do prerequisite like below

1. in the builtin administrator you must add exchange trusted sub system in member administrator domain

2. In all your server exchange, you must add member exchange trusted sub system in local administrator

3. Create file share witness, in my lab I create file share witness in DMG-DC001 (Witness) and DMG-DC003 (Witness2).

oke guys, let’s go to start create DAG

open exchange management console > open organization configuration > click Mailbox

click Tab Database Availability Group > New Database Availability Group


in database availability group name, create DAG Name

on witness server, please type where did you create file share witness, in my lab I create file share witness in dmg-dc001.demagnum.com. and I put in drive C:\witness

and click New


click Finish in the completion


after that right click in the new DAG and click Manage database availability group

click Add to add member server.


select mailbox server that you want to add member server, in my lab I add all server exchange


click Manage


click Finish in completion DAG


after that right click in DAG tab database management groups.

I create alternate witness server  and alternate witness directory


and I create two Ip address DAG (DAG Main site) (DAG DRC)



oke your DAG have ready, but it’s not finish you must add mailbox database on all server

right click in the database management


Click Add Mailbox database copy


click Browse


click Add


Click Finish


right click to re add DMG-EXC003


click Finish


please do it again to add mailbox database copy in database DB-Platinum01 and DB-Silver01




now your DAG has ready and use it

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  1. November 20, 2012 at 7:39 am

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