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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / Load Balancing Vs Fail...
Microsoft Dynamics CRM (Archived)

Load Balancing Vs Failover Cluster for ADFS and ADFS Proxy in Dynamics CRM Farm

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Posted on by Nizar JLASSI 2

Hello everybody,

I'm working on a Dynamics CRM architecture and I need to choose between Load Balancing (NLB or HLB) or Failover Cluster for my ADFS servers and ADFS Proxy servers.

I need to justify my choice using a valid arguments.

I don't know if this is the appropriate forum for that. But I don't know if there is another forum for this kind of questions.

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  • Verified answer
    Remon Profile Picture
    Remon 1,485 on at

    Hi Nizar,

    They are quite different. In NLB the members are active at the same time.

    An NLB array allows load to be spread amongst all the participating machines and delivers a form of high availability if you size the machines appropriate. If using hardware NLB, requires investment.

    A failover cluster provides high availability and redundancy, but doesn't spread the load. Only one server is live at any time, but the clustered application(s) can be moved to the other server very quickly.

    A failover cluster also required shared (very reliable) storage that is independent of the clustered servers, e.g. a SAN.

    I would say:

    NLB --> Simple implementation and supplies Load Balancing and Availability

    FCS --> Harder implementation more dependencies

    Nice article on the topic: http://blogs.technet.com/b/ucando365talks/archive/2014/04/15/adfs-high-availability-quick-reference-guide-for-administrators-implement-single-sign-on-for-office-365.aspx 

    Personal choice would be NLB.

    Good luck with your choice!

  • Community Member Profile Picture
    Community Member on at

    Nizar,

    Please let us know what you came up in the form of recommendations.

    How large is your implementation in terms of number of users (conncurrent)?

    Thank you,

    harihar

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