if you're connecting to an IP address - this should be transparent.

when a failover happens, the backup takes ownership of the VIP address as part of the process of it becoming a primary, you can find out more details in the documentation - here

I've posted the 'Clustering options for high availability and scalability' slides on SlideShare  (here)

Sven,

which direction are you talking about?

incoming - clients coming into Caché providing credentials that need to be authenticated against Active Directory

outgoing - Caché/Ensemble needs to authenticate against a third party service and needs to provide credentials that can be authenticated against Active Directory

Oren

Just to clarify regarding option 1, the idea is to add the extent index to the USA.President class like this

Class USA.President extends USA.Person

{

Property PresNumber as %Integer;

Index PresNumberIDX onPresNumber;

Index Extent [Type=Bitmap, Extent];

}