vCenter 5.1 SSO few known installation issues & suggestions

• 1. Installing vCenter Single Sign On fails with the error: Error 20010: Failed to configure LookupService

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2036497

• vCenter Single Sign On installer reports the error: Error 29155.Identity source discovery error. 

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2034374
also try some known issues here

http://www.vmware.com/support/vsphere5/doc/vsphere-esx-vcenter-server-51-release-notes.html

• "Error 20010.Failed to configure LookupService" error.

managed to overcome this by creating a single user for RSA database (after executing the createtablespace script).

This user was given db_owner permissions and sysadmin (temporarily) as the installation doc suggests

• Don't use anything except dots in your admin password as special character and IT WILL WORK
• If you have the word PORT in any part of your domain name or fqdn for vcenter the installer will throw errors!!! 
• If you have hyphern "-" in any part of your domain name or fqdn for vcenter the installer will throw errors!!! 
• try changing the name to an fqdn name.
• pre-create the tablespace and the users (RSA_DBA and RSA_USER) and let the SSO installation create the tables and schemas during installation

http://communities.vmware.com/message/2132316