Adding a CAS array to a single CAS server enviroment
Our current environment is two mailbox servers setup in a working DAG and one CAS/Hub server. I want to get it right in my head what I need to do to obtain high availability with a second CAS/Hub Server.
How I believe it works is in my current environment I need to
Create second serverInstall Exchange 2010 with CAS/Hub rolesAdd NLB on old and new CAS servers with nlb name of array.domain and add both serversCreate the array on exchange using exchange.domain
Clients will then connect to exchange.domain? I have only done some brief research so please forgive me if I have missed out some very important steps, this is why I am here.
September 17th, 2012 11:32am
hi,
Yes, you can do like you write above.
How to configure cas array with nlb you can see this link:http://exchangeserverpro.com/how-to-install-an-exchange-server-2010-client-access-server-array
Note: it is not a Microsoft official article, just for reference.
hope can help you
thanks,
CastinLu
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September 17th, 2012 11:00pm
FYI, Windows NLB is no longer recommended contrary to the some of TechNet documentation you can find online, see Steve post in this regard.
http://www.stevieg.org/2010/11/exchange-team-no-longer-recommend-windows-nlb-for-client-access-server-load-balancing/
Now there are HLB solutions out there which are very reasonable IMO for size of your deployment, Kemp is one of them, you may want to make some research to see if that might be fit into your scenario.
Trust me I have been there so many times deploying HLB is so much better, easy management etc.
Good luck
ocdOz Casey, Dedeal MCITP (EMA), MCITP (EA), MCITP (SA)
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September 19th, 2012 2:47pm