Oracle Solution for Error ora-19669

ORA-19669: proxy copy functions cannot be run on DISK channel

What triggered the Error:

proxy copy procedure was called, but the device which is allocated to the current session has type DISK.

What should we do to fix it:

locate a non-DISK channel and retry the operation. Note that proxy copy requires a 3rd-party media management software product that supports the this backup/restore feature.