Firstly, if your running 5.5, you do not want to install vCenter 6 and try to attach it to the 5.5 database. That will be a bad day.
I'd suggest calling support to get GSS involved to try and help with the current issue.
If you want to proceed, I'd be interested to know from others if you are OK to install a new server, connect it to the DB with an ODBC connection and install the same version of vCenter that you are currently running.
Cheers, Matt.
VCP6-DCV | VCAP6-DCV Deploy
@mattallford
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