2.5 Controlling Access to Data

To protect application data, workloads, and the underlying infrastructure on which it runs, Oracle Exadata Database Machine offers comprehensive yet flexible access control capabilities for both users and administrators.

The control capabilities include network access, database access, and storage access.

• Controlling Network Access
  Beyond simple network-level isolation, fine-grained access control policies can be instituted at the device level.
• Controlling Database Access
  Separation of duties is critical at every layer of the architecture to reduce the risk of collusive behavior, and prevent inadvertent errors.
• Controlling Storage Access
  Oracle Exadata System Software supports the access control modes of open security, Oracle ASM-scoped security, and database-scoped security.