I've worked with DB2 clusters in the past. I'm trying to get a good
overview of the various layers of setup with SQL Server EE High
Availability including Virtual Servers (virtualization).

I'm very curious as to the configuration options for setting up
cluster nodes, including the advantanges/disadvantages of fully
redundant passive virtual servers mirroring the actives in the multi-
node main cluster (Active-Passive virtual server pairs instead of
Active-Active non-virtual (dedicated, real) servers).

Is there a white paper on this scale of HA with SQL Server EE? This
reminds me of IBM's HA-CMP but I couldn't tell you where the
similarities and differences start & stop.