Off-Line Storage

Electronic records stored or archived on removable disc (optical, compact, etc.) or magnetic tape used for making disaster-recovery copies of records for which retrieval is unlikely. Accessibility to off-line media usually requires manual intervention and is much slower than on-line or near-line storage depending on the storage facility. The major difference between near-line data and offline data is that offline data lacks an intelligent disc subsystem, and is not connected to a computer, network, or any other readily-accessible system..”