Raw Device in Oracle 12c

<in 11g R2 Manual>

Deprecated in Oracle Database 11g Release 2 (11.2)

The following are not supported or not available anymore with Oracle Database 11g Release 2:

• Installing data files directly on raw devices is no longer available during installation with Oracle Universal Installer or Database Configuration Assistant. You must use a file system or use Oracle ASM.

<in 12c Manual>

8.1.10.1 About Upgrading Oracle Database Release 10.2 or 11.1 and OCFS and RAW Devices

If you are upgrading an Oracle Database release 10.2.0.5 or release 11.1.0.7 environment that stores Oracle Clusterware files on OCFS on Windows or RAW devices, then you cannot directly upgrade to Oracle Database 12c. You must first perform an interim upgrade to Oracle Database release 11.2 and migrate the Oracle Clusterware files to Oracle Automatic Storage Management (Oracle ASM). Then you can upgrade from release 11.2 to Oracle Database 12c.

8.1.12 Desupport for Raw Storage Devices

Starting with Oracle Database 12c, block file storage on raw devices is not supported. You must migrate any data files stored on raw devices to Oracle ASM, a cluster file system, or Network File System (NFS).

This also affects the OCR and voting files for Oracle Clusterware. You cannot store the OCR or voting files on raw devices. Oracle Clusterware files must be moved to Oracle ASM before upgrading.

See Also:

"About Upgrading Oracle Database Release 10.2 or 11.1 and OCFS and RAW Devices"

문서 상, 11g R2는 Raw Device에 대해 설치시 지원하지 않는다고 되어 있고, 12c에서는 더 이상 아예 지원을 하지 않는다고 명시하고 있다. 아마 12c 환경에서는 Raw Device를 볼 수 없을 듯 하다. 또 다른 편법(?)등을 이용할 수는 있겠지만, 점차 사라져 갈 것이라고 전망한다.