V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

OFA
       Optimal Flexible Architecture (Oracle)


The Free On-line Dictionary of Computing (30 December 2018):

Optimal Flexible Architecture
OFA

    (OFA) Recommendations for logical and physical
   allocation of database files to disks.  The OFA principles
   can be summarised as: isolate redo, rollback, temp, data and
   index files as much as possible.  OFA can be combined with
   SAME (Stripe And Mirror Everything).

   (2007-02-28)