Jenny,
Here are the answer to your questions:
Is it possible to have my network run ACS 5.2 Appliance (CSACS-1121-K9) as primary and a ACS 5.2 VMWare (CSACS-5.2-VM-K9) Server as Secondary?
Yes
Will I have any base license issues?
No
Else if I am intend to run ACS 5.2 VMWare Servers are my primary and secondary. Should I purchase 1 or 2 VMWare Software(s) (CSACS-5.2-VM-K9)??
This is just sku which included another license that you purchase. You do not purchase the software from us, only licensing. You can most likey download the software from the cisco site.
we are currently having a ACS 4.2 Appliance on a 1113 platform, is there any upgrade option to ACS 5.2 Appliance or ACS 5.2 VMWare Server?
You answered your question on this one, there is a migration process involved that converts your old 4.2 database to 5.2, keep mind that the migration only migrates the tough pieces such as: network devices, network device groups, internal users, ldap database configurations, shell command sets, just to name a few. You will have to reconfigure the authorization policies since acs 5.2 takes on a different model than acs 4.x.
But the Migration Document, says that the ACS4.x appliance has to be backup and restored to a ACS4.x windows server before migration. That does not seem like a easy migration. Is there any other solution?
This isnt a bad solution all you have to do is deploy another windows server just to run acs for windows on, then you use vnc to walk through the migration process. You will have to open a tac case for someone to publish the install files and the patches to get you on the same version.
Is the new ISE product better for AAA/TACACS+ or should I have a seperate ACS for AAA?
ISE is a new product that only migrates databases 5.x. Right now ISE 1.0 doesnt have tacacs support.
