Moving objects throughout the hierarchy

During the storage management cycle, OAM determines whether the primary copy of an object is correctly positioned in the OAM storage hierarchy. If the object is not correctly positioned in the OAM storage hierarchy, the primary copy of the object is moved to the correct storage medium. One of the following medium transitions can be performed for the primary copy of an object:

Disk sublevel 1 to disk sublevel 2
Disk sublevel 1 to optical
Disk sublevel 1 to tape sublevel 1
Disk sublevel 1 to tape sublevel 2
Disk sublevel 2 to disk sublevel 1
Disk sublevel 2 to optical
Disk sublevel 2 to tape sublevel 1
Disk sublevel 2 to tape sublevel 2
Optical to disk sublevel 1
Optical to disk sublevel 2
Optical to tape sublevel 1
Optical to tape sublevel 2
Tape sublevel 1 to disk sublevel 1
Tape sublevel 1 to disk sublevel 2
Tape sublevel 1 to optical
Tape sublevel 1 to tape sublevel 2
Tape sublevel 2 to disk sublevel 1
Tape sublevel 2 to disk sublevel 2
Tape sublevel 2 to optical
Tape sublevel 2 to tape sublevel 1

The location of an object in the hierarchy is unknown to the user of the programming interface. You do not need to supply device-dependent information. For example, there are no JCL DD statements and no requirements for device geometry, such as track size.

Related reading: See Media selection for object storage for information regarding the criteria that is used in placing objects onto the appropriate media type.