Anycast and windows servers

Fri Feb 20 13:33:49 UTC 2004

At 05:43 AM 2/20/2004, you wrote:
>Hence the reason why I want the route to cease being advertised if the box
>"fails."
>
>I'm trying to avoid putting yet another server load balancer box in front
>of the windows box to withdraw the route so a different "working" box will
>be closest.  It may be an oxymoron, but I'm trying to make the windows
>service (if not a particular windows box) as "reliable" as possible
>without introducing more boxes than necessary.

You haven't said what type of service you want to make as reliable as 
possible. It sounds like you want to use clustering or network load 
balancing. With clustering, you can have the service present on both 
machines and if the link between the two fails or if the service on the 
primary machine fails, the second machine will take over. You can also use 
shared Fiber-channel or SCSI devices between the two servers. You can also 
use network load balancing to share a non-transaction based service between 
servers. If you do it this way, you will get automatic load balancing to 
double the speed and capacity between the two or more servers in the NLB 
cluster since they all service requests all the time. In both cases, you 
will create a virtual IP address which receives all connections and both 
machines in the cluster will determine which machine handles each 
connection. This isn't hard and we do it all the time.

-Robert

Tellurian Networks - The Ultimate Internet Connection
http://www.tellurian.com | 888-TELLURIAN | 973-300-9211
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