High Availability for ARR-Week 38
You can find this week’s video here.
Note: This week’s video got stuck in the publishing process so sorry for the delay, but here it is. Next week I’ll move on to some other topics besides web farms, to mix it up.
Application Request Routing (ARR) does not have high availability built in, so it's up to us to implement a solution to ensure that ARR doesn't become a single point of failure. Options include hardware load balancers, other software load balancers, or two Microsoft options-namely NLB and Clustering Services.
Today's video discusses these options and then takes us on a walkthrough of setting up Microsoft's Network Load Balancing(NLB) solution. There are certain considerations to ensure that NLB works with your network and that it properly health tests to ensure that a failed node is automatically taken out of rotation.
For your reference, the following four links were mentioned in the video:
- Catalyst Switches for Microsoft Network Load Balancing Configuration Example
- High CPU on Cisco 4500 with MSFT NLB multicast cluster
- Monitoring Application Level Health
- Configuring IIS 7.0 World Wide Web Publishing Service in a Microsoft Windows Server 2008 failover cluster
This is now the 13th week in a mini-series on web farms, and the 38th week of the entire series. You can view past and future weeks here:http://dotnetslackers.com/projects/LearnIIS7/
You can find this week’s video here.