- Disk-to-Disk-to-Tape. Also known as DDT or as "disk
D2D2T is a data storage and archive strategy. With D2D2T data is initially stored on disk then, according to some criteria, it is copied to a secondary disk store pending archiving to tape.
For more information see:
- http://everything.explained.at/Disk_staging/ - Disk staging explained. Article covers D2D2T.