Files/Raw Devices of a Tablespace 

The objects of a tablespace can be stored in files or in raw devices. SAPDBA can display this assignment for you:

Display all tablespaces and datafiles displays the assignment between tablespace - data files or tablespace - raw devices and the size of the files.

Display all character devices in /dev (depending on the operating system) displays an overview of all the raw devices and their size. If data of your ORACLE database is in a raw device, the link to this raw device is also displayed.

See also SAPDBA Support for Raw Device Configuration.