On a high-density
half-inch tape cartridge, assuming the customer uses a cartridge to write at least 10GB per week, durability lifetime ranges are projected to run from 10 to 30 years.
I think I started back in 1963, and IBM kept working on tape,
half-inch tape. Every time there was a change in the technology from one level to the next, there are always problems.
In enterprise storage, linear recording is the dominant format in all
half-inch tape technologies including 3480/90, 9840, DLT, 3590, and T9940 as well as the 8mm 3570.