Hub transport and client access server

Posted on 2007-08-05
Last Modified: 2013-11-05

We are looking into implementing an Exchange 2007 CCR environment.  My question is this: According to my research, I cannot run the HUB and CAS roles on the same cluster/servers as the mailbox cluster.  Is this correct? And if so, do I need to purchase another x 64 machine, and OS to run this on.

If that is the case, it sort of beats the purpose, because you will still have a single point of failure on the HUB/CAS server.

If it can be installed on the same cluster as the mailbox role, how is this done?


Question by:nickolse
    LVL 104

    Accepted Solution

    CCR is for mailboxes only.
    If you want to avoid single point of failure on the other services then you need to use two machines and NLB.
    For full redundancy in an ideal deployment you would have six machines total.
    Two on CCR, two holding the other roles on NLB and two edge servers.


    Author Comment

    Thanks Simon
    What would the licensing implications be? Would I need to acquire an Exchange 2007 license for every single machine?
    LVL 104

    Expert Comment

    Yes - you need an Exchange license for all machines.
    Although remember that you would only need an Enterprise license for the cluster machines. The other roles will go on standard edition - like frontend servers in the Exchange 2003 world could be run on standard edition.

    I would also say that the scenario I have outlined above is Microsoft's dream scenario. The case for an Edge is not that strong. I can do everything that Edge does with a standard copy of Windows 2003 (even Web edition) and some well chosen third party tools, all for much less than the cost of Exchange 2007.


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Are your corporate email signatures appalling?

    Is it scary how unprofessional your email signatures look? Do users create their own terrible designs and give themselves stupid job titles? You can make this a lot easier for yourself by choosing an email signature management solution from Exclaimer today.

    Learn more about how the humble email signature can be used as more than just an electronic business card. When used correctly, a signature can easily be tailored for different purposes by different departments within an organization.
    "Migrate" an SMTP relay receive connector to a new server using info from an old server.
    The purpose of this video is to demonstrate how to set up an account with Mailchimp. This will be demonstrated using a Windows 8 PC. Tools Used are: Go to : Enter an Email, Username, and Password. Click Create My Acco…
    In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…

    761 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

    8 Experts available now in Live!

    Get 1:1 Help Now