I am trying to estimate the time that is needed to use 2 Exalytics machinesHow long is a piece of string ...
in combination with OBIEE. What is the extra effort required?
I assume the in-times database will be used by the BI server automatically.Nope.
The extra effort is the new hardware/software.Without wanting to sound too rude, you might want to factor in some Exalytics training too :-)
The big change it the ETL Source->DWH->in times->bi server->app.
Does that make sense?
Are there any work items that I have missed?