Solved

Exchange server 2010

Posted on 2012-04-01
13
307 Views
Last Modified: 2012-06-21
Hi,

I am going to implement Database avalability group in exchange 2010.
Currently I have two exchange servers. Both have Hub transport, Mailbox server and CAS role installed.
I want to know following things.

1. which role I have to install at third server which I will use as a witness server?
2. What will happen if witness server goes down? If only witness server goes down will mail box server will remain up or mailbox server also down?
0
Comment
Question by:sitg
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
  • 2
  • +2
13 Comments
 
LVL 17

Expert Comment

by:Anuroopsundd
ID: 37793003
Nothing will happen and your Exchange server will continue work fine. The things will change if one of the DAG member goes down along with the witness server
0
 

Author Comment

by:sitg
ID: 37793008
Please tell me Which exchange roll i have to install at witness server ?
0
 
LVL 17

Expert Comment

by:Anuroopsundd
ID: 37793018
no exchange role is required on the witness server.
make sure for witness server: it cannot be a member of the DAG; must be in the same forest; it can run on top of Windows Server 2003/2008/2008 R2.
0
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 
LVL 17

Expert Comment

by:Anuroopsundd
ID: 37793026
more details for setup of DAG at http://support.microsoft.com/kb/2274305

---Configure the DAG Witness Server and the Witness Directory:

·         Create the witness directory and share on the Witness Server

·         A Witness Server must not be the member of DAG

·         The Witness Server can be any Windows Server operating system and need not be same as the DAG members
0
 

Author Comment

by:sitg
ID: 37793029
I have server 2008 R2. This server is joined in domain controller. I will use this server for witness server.

I want to know what are the prerequisites for witness server like which software, role or feature i need to install winess server.
0
 
LVL 17

Accepted Solution

by:
Anuroopsundd earned 500 total points
ID: 37793042
below is what all required on the witness server. nothing else.

Note: If the witness server you specify isn't an Exchange 2010 server, you must add the Exchange Trusted Subsystem universal security group to the local Administrators group on the Witness Server. These security permissions are necessary to ensure that Exchange can create a directory and share on the Witness Server as needed: Create a Database Availability Group (http://technet.microsoft.com/en-us/library/dd351172.aspx) .

http://technet.microsoft.com/en-us/library/dd351172.aspx
0
 
LVL 19

Expert Comment

by:R--R
ID: 37793503
0
 
LVL 23

Expert Comment

by:Malli Boppe
ID: 37794551
The 2 exchange servers are they using windows 2008  enterprise edition. If not you can't have DAG.  Witness server doesn't need to have  any roles installed. Below is  really good article about DAG. If you witness server fails nothing will happen.
http://blogs.technet.com/b/exchange/archive/2011/05/31/exchange-2010-high-availability-misconceptions-addressed.aspx
0
 
LVL 23

Expert Comment

by:Suliman Abu Kharroub
ID: 37794612
1. which role I have to install at third server which I will use as a witness server?
No need to install any exchange role inn the file witness share, however you need the file witness share only if you have a DAG enabled in an even number of mailbox servers. WFS can be done on any reliable server not necessarily on a exchange server.
0
 

Author Comment

by:sitg
ID: 37795328
My exchange servers are running on window 2008 R2 standard edition.


When I am going to add exchange server in Database availability group it show that Window cluster service is not installed. You need 2008 enterprise edition.


Please tell me what should I do?
0
 

Author Comment

by:sitg
ID: 37795329
My exchange servers are running on window 2008 R2 standard edition.


When I am going to add exchange server in Database availability group it show that Window cluster service is not installed. You need 2008 enterprise edition.


Please tell me what should I do?
0
 
LVL 17

Expert Comment

by:Anuroopsundd
ID: 37795349
DAGs use Windows Failover Clustering technology, and as a result, they require the Enterprise version of Windows.


http://blog.morecoffeeany1.com/2010/03/10/exchange-2010-rtm-dag-software-requirements/
0
 
LVL 23

Expert Comment

by:Malli Boppe
ID: 37798880
You need to build new exchange servers on windows 2008 r2 enterprise edition. You can just start with one server create DAG move the  mailboxes and decommission the current exchange server and make that a member of the DAG . Don't try to upgrade windows 2008 r2 standard to windows 2008 r2 enterprise

http://www.msexchange.org/articles_tutorials/exchange-server-2010/management-administration/how-move-single-server-high-availability-dag.html
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Background Information Recently I have fixed file server permission issues for one of my client. The client has 1800 users and one Windows Server 2008 R2 domain joined file server with 12 TB of data, 250+ shared folders and the folder structure i…
Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question