Multiple Clusters for Multiple Sites

["Victor" <victord@xxxxxxxx>]

I would like to find out if LVS supports the config of multiple clusters for
multiple sites:

        ROUTER
          |
       FIREWALL
          |
   +------+------+
   |             |
+--+--+       +--+--+
| LD1 |       | LD2 |
+--+--+       +--+--+
   |             |
   +-----+  +----+
         |  |
        SWITCH
     /   |   |   \
  WWW1 WWW2 WWW3 WWW4

Would it be possible to setup multiple clusters

Cluster1
   www1
   www2
   www3
/Cluster1

Cluster2
   www2
   www4
/Cluster2

And then set up multiple sites

Domain1.com
   cluster1
/Domain1.com

Domain2.com
   cluster2
/Domain2.com

Also, would it be possible to dynamically modify the ClusterX modes by
adding/removing servers? Scheduling changes?

I was not completely clear on section 23.16 of the howto. Is having two load
balancer directors where "if one fails, the other transparently takes over"
not supported at this time? If it is, how is this handled? The whole point
of having load balancing is to eliminate single point of failure (as well as
performance) so introduing SPOF at the director would be unacceptable for
me.

In your "deployment" page, you list a couple sites that use LVS. Any word on
what they are using to overcome these issues? How do they maintain redundant
Controllers?