Just to know it for sure before buying the software, this short question:
Is it possible to use high availability with vCenter Server 4 Foundation?
The absolutely only differences with vCenter Server 4 Standard are:
vCenter Orchestrator
vCenter Server Linked Mode
A maximum of 3 hosts for vCenter Foundation
Is this right?
see this KB for product offerings
Indeed, i know with vSphere 4.0 Standard it is possible to use HA, but is this
possible in combination with vCenter Server 4 Foundation?
Or do you need vCenter Server 4 Standard for this.
according to this chart, it is.
http://www.vmware.com/products/vsphere/buy/editions_comparison.html
You can use HA, VMotion, SVMotion, FT, ...
But you need also the ESX license for each of those producs (the same case of vCenter Server "standard").
Andre