DFSMSdss commands can move and convert data sets between system-managed and non-system-managed volumes. Using DFSMSdss, you can perform the following data conversion tasks:

• Recognize and preserve SMS classes. Each system-managed data set has a set of associated class names. These names can identify the data set's data class, management class, and storage class. DFSMSdss recognizes and, if specified, preserves these names when copying, dumping, and restoring data.
• Copy, dump, and restore system-managed data sets. DFSMSdss moves data sets between system-managed volumes and non-system-managed volumes. The SMS class names are either added to or taken away from the data set.
• Filtering by SMS class names. You can filter both system-managed and non-system-managed data sets by class names.