EXCH2013 and DAG settings

Posted on 2016-11-07
Medium Priority
Last Modified: 2016-11-08
Hi Experts,

when I migrate a mailbox to the new server, the client will be informed to restart the outlook and then autodiscover makes the rest of the job. When I check the server setting, I can see the new GUID of the 1st EX2013 server.

Later I want to use a DAG with 2 or 3 EX2013 servers.
Can I do this later ? What about the Client Access GUID for internal clients ?
Do I have to change this to the DAG name ?
Question by:Eprs_Admin
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
LVL 49

Assisted Solution

Akhater earned 2000 total points
ID: 41878247
yes you can no problem, this GUID is mailbox related not DAG related it will be different for each mailbox.

when you add your new server make sure that the URLs are the same as the existing one and you will need to find a way to load-balance bertween the 2 servers (DNS round robin is ok for 2013 or a dedicated load balancer)

Author Comment

ID: 41878270
Just to confirm, I can do the DAG later, lets say after I have moved all mailboxes ?

Author Comment

ID: 41878271
The DAG name is not a client access array name , right ?
Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

LVL 49

Expert Comment

ID: 41878288
yes you can after and in 2013 there is no such thing as CAS Array Name anymore that's why it is so easy to do it

Author Comment

ID: 41878366
ok I understand.

on my internal DNS I also have to change AUTODISCOVER and MAIL to my new IP address ->EX2013.
But what happens, if the first EX2013 server goes offline ?
What happens with my internal AUTODISCOVER and MAIL entries ?
LVL 49

Expert Comment

ID: 41878492
that's why i told you you need to find a way to load balance

if you have a dedicated load balancer, it will take care of that, with DNS round robin the client will get disconnected and then pickup the other record and reconnect to the working server so mail and autodiscover will have 2 entries one for each server

Author Comment

ID: 41878501
I have a Firewall from FORTINET. A loadbalancer is included but I think just for external connection to internal.
I am not sure.
With DNS RR you mean multiple entires of MAIL and AUTODISCOVER in my DNS zone ?
LVL 49

Accepted Solution

Akhater earned 2000 total points
ID: 41878523
yes fortinet is for external

for internal you need to have to have another way to load balance if you want to go for DNS round robin you will have 2 records for mail one pointing to the IP of server1 and one pointing to the IP of server2 same for autodiscover

Author Closing Comment

ID: 41878533
Ok you helped me a lot.
Now it is clear.
First I will go for DNS RR and next year we buy a nice HLB from KEMP.

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

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

Outlook for dependable use in a very small business   This article is about using the Outlook application (part of Microsoft Office) in a very small business, or for homeowners where dependability and reliability are critical requirements. This …
A couple of months ago we ran into an issue that necessitated re-creating our Edge Subscriptions. However, when we attempted to execute the command: New-EdgeSubscription -filename C:\NewEdgeSub_01.xml we received an error indicating that the LDAP se…
This tutorial will walk an individual through the process of installing of Data Protection Manager on a server running Windows Server 2012 R2, including the prerequisites. Microsoft .Net 3.5 is required. To install this feature, go to Server Manager…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Suggested Courses

752 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