Database-As-A-Service with Copy on Write

Database Cloning; Done in minutes and with minimal storage usage

• Database Thin Cloning with Copy-On-Write
•   Based on Network File System (NFS) 
•  Preferable using Direct NFS (dNFS) clients to the database
• Copy-on-Write (COW) Technology
•  Clones use read-only image copies of data-files as source 
•    Read Only Databases
•    Snapshot method
•    RMAN copy Backup
•  Only modified blocks are written to dNFS location 
• CloneDB, snapshot copy, Snap Clone
• Snap Manager Utility, Enterprise Manager

dbaas-clone from Jos van den Oord [Oracle DBA,OCM,OCP,RAC,CLOUD]