PowerHA for i questions

Hi All

I have been doing some research into PowerHA for a possible Proof of
Concept implementation. Most of my reading has been in the "Implementing
PowerHA for IBMi" and PowerHA SystemMirror for IBM i Cookbook" redbooks.

The scenario I am looking at initially is using two guest LPARs on two
Power 7 machines as a proof of concept. I know how to build a guest LPAR
and also have the IASP side of things under control but I do have a couple
of questions that I have not been able to find in the reference material.

1. What are the network requirements (if any) and how do I set up the
network for failover

Do I assign one address that the cluster group then uses to direct traffic
to the live node, or do I do something like change the DNS entry to point
the host name to a different IP address ? Or some other approach ?

2. How do I initially synch up the IASP's

Do I have to do a save and restore of the IASP or the library contents, or
do I need to let the Cluster perform a some kind of synch operation ? Will
restoring the data into the target IASP make this any quicker ?

3. Can I have the same system name (SNA system name) on both nodes in the
cluster ?

I ask this last question simply out of curiousity as a customer I am
dealing with has software that they insist must have a specific system name
to function. I don't think this is ideal, nor do I think it will work but I
can't think of a specific reason why it won't. I suspect the cluster group
won;t allow to nodes to have the same system name but haven;t been able to
verify this so far.

If anyone can give me some pointers on these questions or point me at some
other reference material that would be great.