Single Sign On Multi-Site ?

Hi

I am rebuild virtual center and moving to a SSO multi-site configuration with 2 virtual centers to take advantage of linked mode.

A pre-requisitefor linked mode is: Make sure that all vCenter Servers in a Linked Mode group are registered to the same vCenter Single Sign On server.

If site B SSO installation is configured to Join an existing SSO installation, Multi-Site to Site A, then what happens if i lose the Site A virtual center server. Can i still log into Site B virtual Center server?

Thank you