We have an application, which is running on top of windows 2003/2008 cluster(mostly two node cluster), which point to shared disk.
app search for windows cluster servcie as dependency and use the cluster api to get the cluster related info from various resource groups.
During failover, we also provide the status of resourcce groups on active/passive node.
Now there is a new technology (Windows 2008 HPC cluster)
So, How this technology is different from previous one
1) deployment aspect
2) Do we see microsoft cluster servcie running?
3) In which scenarios, do we need to use HPC?