For VUM sizing (database plus other stats): [URL]  For vCenter sizing: [URL] (document says 4.0 within but applies to either version per file name).  When configuring logging retention vCenter itself does a rough calculation but that does not include VUM requirements (that I can remember).  Regards,  Jason
Are there best practices with regards to vcenter database sizing? We are currently using version 4.1 if there are guidelines from emc's perspective to follow. 
Best practices for vcenter database sizing?