Aamir,
Can you start a new thread since this is not related to the issue this post was created for?
Also, can you provide the type of resource the IAPP is? Is it a VMDg, MountV, IP, LanMan, GenericService, etc...?)
If you look in the %VCS_HOME%\log directory, there will be a log file for each resource type: <resource_type>_A.txt (i.e. GenericService_A.txt, IP_A.txt, SQL2005_A.txt, etc..)
Once you determine what type of resource is failing, you can open the proper log file which should also provide more detail as to why the resource failed to online.
The error you are seeing normally occurs when a resource goes offline outside of the cluster. For example, let's say the IAPP resource was a GenericService resource that was to monitor a Service named IAPP. If you when into the services control panel (start > run > services.msc) and stopped the service manually, the next time the cluster resource performed a monitor cycle (every 60 seconds for most resources), it would see that the resource was no longer online, and you would see the exact error you reported. If this is failing during a failover operation, it appears the resource doesn't go online at first, but failes soon after, otherwise we would see a 'failed to online' error.
I hope this helps and I'll keep an eye out for a new post which additional detail.
Cheers,
rjhanley
