Clone database using Oracle 12c CloudFS Copy-On-Write snapshot without multitenant feature Three Goals: 1. Time Saving : Clone big database in a few minutes, not hours. 2. Storage saving : Clone database using less than 1% of original database space 3. License Cost saving : Achieve the two goals above without Oracle multitenant feature Solution: Use Oracle 12c CloudFS Copy-On-Write snapshot feature and manually create clone database without using pluggable database feature. Pre-requisite requirement : Oracle ACFS 12.1. How to create ACFS is covered by another document. This POC was done on Oracle 12c RAC flexible cluster on RedHat Linux server vdclracdev01 Reference : The two Oracle documents below are about how to do this using multitenant feature. http://www.oracle.com/techne