5
votes
3answers
3k views

If DNS Failover is not recommended, what is?

As a followup question to his very popular question: Why is DNS failover not recommended?, I think it was agreed that DNS failover is not 100% reliable due to caching. However the highest voted ...
2
votes
2answers
187 views

What happens if services like DynDNS to control failovers fails? It's probably?

In the next diagram I'm trying to have a backup web page in another datacenter and a service like DynDNS that controls failovers in SERVER A to switch to SERVER B. But, what happens if DynDNS fails? ...
0
votes
4answers
413 views

Datacenter power failure failover

We recently had our datacenter's power go. We are protected by an SLA and use DNS to redirect users when a failure is detected. DNS isn't designed to do this by design. Is this the most practical way ...
2
votes
1answer
419 views

IIS7 failover cluster across datacenters

I have servers in two different datacenters with each datacenter getting static IPs. What I would like to do is setup the servers as IIS7 servers and allowing them to failover from datacenter to ...
2
votes
4answers
372 views

Redundant Data Centers

I currently have an ASP.NET web app running on a cluster in a data center talking to a SQL Server DB. I need to make this setup redundant with a hot-hot DB in another data center as well as a ...
1
vote
3answers
207 views

Anyone have an example topography of an ideal shared/vps server setup at a colo/data center?

I am looking into options for building a data center at a colo for the purpose of using it as a place to host shared server websites, as well as virtual private servers. NAS/SAN solutions, load ...