OCS 2007 R2 and Barracuda HLB RRS feed

  • Question

  • Hi, has anyone successfully setup HLB with two Edge Servers using the Barracuda 240 or 340? We are looking into the requirements for a HLB solution for a new (yet to be designed and implemented etc) production system. Also, is it possible to setup HLB after the initial deployment has been completed in production i.e. can you simply add an addtional Edge Server and HLB when the load and the amount of users becomes large enoungh? And the last question, would Microsoft support non-certified HLB solutions, as long as they comply with the requirements outlined in the documentation etc?

    Kind regards,
    Friday, October 16, 2009 8:04 PM


  • I haven't used that specific HLB, but to answer your other questions:

    - Yes, you can always add the HLB later though some adjustment will be required to move from a single edge to a load balanced configuration.  Take a look at the MS documentation for load balancing and edge to get the details on that (DNS and certificate sections specifically).  One thing to keep in mind is that you will not want to NAT your A/V edge since you'll just have to switch back to a non-NAT configuration later.
    - MS doesn't directly support any load balancer with OCS, though there are some that vendors have tested with OCS.  You just need to verify with your vendor that the HLB supports the guidelines outlined by Microsoft for OCS R2.  If you use a load balancer that does not meet these requirements and run into issues then PSS may ask that you recreate the issue(s) with a properly configured load balancer to continue receiving support.
    Mike Stacy | Evangelyze Communications | http://www.evangelyze.net/cs/blogs/mike
    Friday, October 16, 2009 10:21 PM