Home > Storage > Data Storage Essentials > AppSync > Dell AppSync: Integration with Oracle Database Server > Affected entities
Oracle plug-in of AppSync analyzes the database and its logical layout on the storage array. For example, if the database is composed of five tablespaces, all included in the copy, AppSync ensures that all the underlying datafiles, file systems, and volume groups are discovered. When a job runs, AppSync maps the source data to the target devices based on the particular job selection and copies the data.
Note: The granularity of restore operations is tightly linked to the underlying storage layout on which the database is built.
Keep in mind that even two distinct file systems might be associated if they are built on volumes with a common volume group. AppSync copies at the volume group level because portions of a volume group cannot be extracted. The restore granularity matches the granularity that is dictated by the storage layout on which the database is built.