Solved

Flipping DR and HQ Exchange sites

Posted on 2013-01-09
5
334 Views
Last Modified: 2013-01-28
We have a customer that wants to do a flip make their DR site (Site A) the active site for their already installed Exchange 2010 infrastructure.  Until their new DR site comes online, they will use HQ (Site B) for Exchange DR.

Currently, they have a DAG that stretches across both sites (so not problems there.)  My big concern is the CAS part.  They have a Windows NLB with 2 CAS/HUB servers in Site B.  I will deploy a Kemp NLB in Site A with 2 CAS/HUB servers behind it.  (One of those servers already exists and I will add the other.)

They use 2 namespaces for access -- webmail.domain.com (points to Site B) and webmail2.domain.com (points to Site A).

For the switchover, I plan to (right now, I'm not worried about the order):

1. change the external and internal DNS records and switch IPs to webmail=site A and webmail2=site B
 
2. do the same for MX records

3. Move all DBs to DAG members in Site A

4. Use set-clientaccessarray command in each site to switch the names.  Make sure the right one is applied to each DB

5. Use EMC to flip the internal/external URLs for OWA, ECP, ActiveSync, OAB

Anything I'm forgetting?

Thanks!
0
Comment
Question by:Brigh-Guy
  • 3
  • 2
5 Comments
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
Comment Utility
Changing the CAS Array name isn't going to update the clients.
If you have a CAS array in place, then just move it to the other site. Don't change anything on the databases. Everything else looks ok.

Simon.
0
 

Author Comment

by:Brigh-Guy
Comment Utility
Sembee2...Are you saying to just move the actual servers?  That's not really an option here since they want to keep both sites alive.  Additionally, that would take too long to accomplish and would extend the outage window beyond what they're allowing me.  Thanks, tho, for the comments.
0
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
Comment Utility
No, move the DNS record for the RPC CAS Array.

Simon.
0
 

Author Comment

by:Brigh-Guy
Comment Utility
Cool.  That's my plan.  Thanks.
0
 

Author Closing Comment

by:Brigh-Guy
Comment Utility
Thanks for responding.  The swtichover went very well.  This article was a good help.  http://support.microsoft.com/kb/940726?wa=wsignin1.0
0

Featured Post

Free Trending Threat Insights Every Day

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

We are happy to announce a brand new addition to our line of acclaimed email signature management products – CodeTwo Email Signatures for Office 365.
Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
how to add IIS SMTP to handle application/Scanner relays into office 365.

772 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

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now