How to set up a client access array without you load-balancing

can someone Please provide me with instructions on how to configure a CAS Array without a load-balancing
edsexpertAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Simon Butler (Sembee)ConsultantCommented:
There is nothing different from an Exchange point of view.
Create the DNS entry that exists internally only, pointing it to one of the servers with the CAS role. Change the TTL time down to 10 minutes.

Create the array in Exchange using new-clientaccessarray.
Adjust the databases.

You do not need to have a load balancer to use a CAS Array.

On this page at Technet, you just need the sections for creating the array and changing the databases.
http://technet.microsoft.com/en-us/library/ee332317.aspx

Simon.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
edsexpertAuthor Commented:
If i have two cas servers and one goes down then what  do i creat a dns entry for two servers
0
Simon Butler (Sembee)ConsultantCommented:
Round Robin doesn't provide any kind of load balancing.
If you don't want to put a load balancer in, if a server goes down, change the DNS entry. Hence the reason for putting the TTL time down to 10 minutes - the change will be reflected very quickly.

Simon.
0
edsexpertAuthor Commented:
Okay so can you tell me what the advantage to having a CAS array without a load-balancing is?
0
Simon Butler (Sembee)ConsultantCommented:
Clients connect to the CAS role. If that server fails or you move the mailbox to another server then the client DOES NOT follow. The CAS array allows you to move the clients to another CAS role holder easily using DNS.

This will become a real issue when Exchange 2010 servers get replaced in the next 18 months or so, without an upgrade to Exchange being done.

http://blog.sembee.co.uk/post/RPC-Client-Access-Array.aspx

Every implementation of Exchange 2010 I does gets an RPC CAS Array configured. I don't use the real server names anywhere.

Simon.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Outlook

From novice to tech pro — start learning today.