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This posting is provided "AS IS" with no warranties, and confers no rights. The opinions expressed within are my own and should not be attributed to any other Individual, Company or the one I work for. I just happen to be a classic techie who is passionate about getting things to work as they should do (and are sometimes advertised and marketed as being able to?) and when I can I drop notes here to help others falling in to the same traps that I have fallen in to. If this has helped then please pass it on - if you feel that I have commented in error or disagree then please feel free to discuss with me either publically or privately? Cheers, Dave
Thin Clients, VDI and Linux integration from the front lines.... Raw and sometimes unedited notes based on my experiences with VMware, Thin Clients, Linux etc.

Brian has posted a neat article that covers the Load Balancing aspect of the non-Presentation Server components (read Web Interface / Citrix Secure Gateway) for your Citrix Farm, with a good guide to other alternatives to Windows NLB and their Pricing.

Conclusion
Load balancing WI servers is really simple. So go ahead and use NLB, or get fancy and buy an application switch. The bottom line is that you have options and the configuration is pretty straightforward.

I've always found it very useful to have this sort of information at your fingertips, because I've lost count of the amount of times that we get questions coming in from Sales like "I've got a customer on the other end of the line who wants to know what his options are with "

Not to be condescending to Customers, BUT....  they sometimes don't really know what they want/need/or are asking for, and one thing that will bring a very sharp focus on this is simply the cost. If you can explain it in less than 1 minute in simple terms like Brian has in this following example, you will be able to cut down the time it takes to make a decision by a huge margin (do not underestimate the power of telling it like it is in monetary terms):

So how much do these things cost? A lot! The SMB version of Citrix’s NetScaler Application Switch is like $17,000! (And double that since you’ll want two for redundancy!) F5’s devices are in the same ballpark price-wise. They’re all pretty expensive except for a company called “Kemp Technologies” that has a two-server application switch for $2500. (Side note: This is what we use in front of the BrianMadden.com web servers.) While Kemp doesn't offer all the compression and caching features of the big boys, they offer great hardware-based application load balancing for a super price!

However, even $5000 (cause you'll want two of them since this is all about redundancy) is too expensive for some people. Fortunately you can also use the Windows Network Load Balancing (NLB) capabilities that are built-in to Windows Server 2003 for a zero-cost software-based load-balancing solution that will probably be sufficient for 99% of the people reading this.

Posted on Thursday, December 1, 2005 10:45 AM Citrix , IT Management , Real Cool Stuff , Microsoft Tips | Back to top


Comments on this post: How to Load Balance two Citrix Web Interface Servers - Brian Madden

# re: How to Load Balance two Citrix Web Interface Servers - Brian Madden
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Good article. Those who need howto? Please look at the following link.
Left by Yaseen MUNAF on Jan 11, 2006 12:35 AM

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