Description of the illustration sagug_vm_009.eps

This figure shows a Test/Development system containing a Test Master database, which was created using Data Guard or RMAN clone from a Production database. The Test/Development system also contains six snapshot databases created from the Test Master database. The Test Master database is read-only, mounted, or closed, and is a full copy of the Production database. The snapshot databases are read-only or read-write, utilizing sparse files that contain only changed blocks.