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Configuring Static RPC port on Exchange CAS and Mailbox server in one stack only not both ?

Posted on 2014-12-14
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Last Modified: 2014-12-16
Hi All,

I got some questions regarding my concerns in changing the Static port in my NLB cluster Exchange HT-CAS server role on Exchange Server 2010 SP2 as per this article: http://social.technet.microsoft.com/wiki/contents/articles/864.configure-static-rpc-ports-on-an-exchange-2010-client-access-server.aspx

Email flow and Outlook client connection go through the NLB cluster VIP email.domain.com.au which is served by the following server:
PRODHT-CAS01 (HT-CAS Server Windows NLB node 1)
PRODHT-CAS02 (HT-CAS Server Windows NLB node 2)

Public Folder access through Outlook client goes through the following servers:
PRODMBX01 (Stand alone Mailbox Server 1) no DAG
PRODMBX02 (Stand alone Mailbox Server 2) no DAG

Reason of changing: The hardware load balancer (Riverbed) requires to have static RPC port to work properly.

My question is:

Can I make the changes first on the first stack of Exchange Server set as below first:
PRODHT-CAS01 (HT-CAS Server NLB node 1)
PRODMBX01 (Stand alone Mailbox Server 1) no DAG

to test the Outlook email & Public Folder connectivity in the first week and then followed by the rest of the server set:
PRODHT-CAS02 (HT-CAS Server NLB node 2)
PRODMBX02 (Stand alone Mailbox Server 2) no DAG

would that cause the NLB or user email access problem ? or do I have to make the changes all in one day for those four servers followed by the reboot ?

Thanks in advance.
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by:Simon Butler (Sembee)
Simon Butler (Sembee) earned 500 total points
ID: 40498929
First - SP2 is no longer supported. You need to upgrade to SP3 to remain supported.
Usually the change would be made to all servers because they need to communicate internally as well.

Simon.
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by:Senior IT System Engineer
ID: 40499246
OK So in this case it is not recommended to do staging on stack 02 passive first and then stack 01 after failover on the next
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Expert Comment

by:Simon Butler (Sembee)
ID: 40499258
If I was implementing the change, then the load balancer would only be introduced when all nodes have been modified.

Simon.
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Author Comment

by:Senior IT System Engineer
ID: 40499294
Simon,

The load balancer is already in place and configured to accept the RPC traffic on the custom port number. The IWndows NLB is still running and intact.

So in this case do I need to configure the both server static ports at the same day and then dissolve the Windows NLB cluster on HT-CAS servers ?

andthen do the same for the mailbox server as well ?
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Simon Butler (Sembee) earned 500 total points
ID: 40503350
By introducing the load balancer I meant sending traffic to it.
You need to do everything on the same day - if it doesn't work, then change the DNS entries to bypass the load balancer.

Simon.
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by:Senior IT System Engineer
ID: 40503616
Thanks !
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