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Do I have to configure the windows NLB before I install the Exchange 2007 CAS.?

Posted on 2008-06-14
Last Modified: 2012-05-05
I want have 2 CAS.HUB Servers with NLB for my 2 node CCR Exchange 2007 Mailbox Servers.
Do I have to configure the windows NLB before I install the Exchange 2007 CAS.?
Question by:cap7
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LVL 15

Expert Comment

ID: 21787465
Wait wait wait.

Are they 2 CAs/HUb/Mailbox servers?
 or 2 CAS/hub and 2 Mailbox servers?

LVL 15

Expert Comment

ID: 21787504
In any case, you should be able to install NLB before or after, though I would do it after. I would still point to hubs / mailboxes by real ip, and for your OWA have it point to the NLB virtual IP.  The hub servers will automatically load balance I believe without the need for you to use NLB.

Author Comment

ID: 21788288

I currently have 2 mailbox role cluster servers and 1 CAS/HUB Server. I want to add a second CAS/HUB server at a COLO for redundancy.

Author Comment

ID: 21788298

Do I need NLB ,can the CAS/HUB server load balance and failover ?
LVL 15

Accepted Solution

LegendZM earned 500 total points
ID: 21789158
You will need NLB for the CAS portion, but the HUB's will load balance automatically

read the section under: High Availability for Other Server Roles

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