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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It would be the same provider, Latisys, in both locations. I'm using
IP address ranges provided by Latisys. The two sites both have a private point
to point 3Mbps link between each other. There's no load balancers since the
budget ran out before that. I'm not really looking for a "how to"
just curious what others have done or seen done on this. In all likelihood,
I'll have to just use DNS Round-Robin for the two sites to have any kind of
failover.<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
sgvlug-bounces@sgvlug.net [mailto:sgvlug-bounces@sgvlug.net] <b>On Behalf Of </b>Charles
Wyble<br>
<b>Sent:</b> Tuesday, December 15, 2009 4:08 PM<br>
<b>To:</b> SGVLUG Discussion List.<br>
<b>Subject:</b> Re: [SGVLUG] Hosting a Site over multiple locations and public
IPs<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>You might want to ask on the <a href="http://UUASC.org">UUASC.org</a>
and SFVLUG list, as well as here. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>This is a fairly advanced topic, and any advice you receive
you should take with a hefty grain of salt. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Some folks who have this experience might not be willing to
share it for free. :) We can be bought though (usually after meeting
dinner is sufficient, at least for me). <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I've worked on multi site applications (<a
href="http://evite.com">evite.com</a>, several e-commerce disney properties
such as <a href="http://disneyworld.com">disneyworld.com</a> etc) and the only
thing I can say with confidence is "it depends". One would need far
more data on your setup then you have provided here. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Do you have your own address space? What kind of links
between the data centers? What sort of routing? What sort of load
balancers? Is the provider the same one in two different locations? <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>etc.... <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>On Dec 15, 2009, at 3:54 PM, Edgar Garrobo wrote:<o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I'm
on a project where we're hosting an application which has a web interface and a
Citrix service interface. I've set up two co-location sites, one in
Irvine, CA and one in Chicago, Il, for redundancy and to distribute the user
load. I'm wondering what the LUG's opinions on the best way to hose a
multi-location website? Both sites have separate public IP addresses but
identical equipment and the data is replicated between sites at block level by
the NetApp storage devices. Ideally a user would be able to go to<span
class=apple-converted-space> </span><a href="http://www.mydomain.com">www.mydomain.com</a><span
class=apple-converted-space> </span>and hit whichever site's web server
responds first and if one location was to go down, the users wouldn't notice
since they would be automatically connected to the other site without having to
use a different URL.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Any
suggestions on the ideal setup for such a scenario?<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Thanks,<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Edgar<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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