Increased data density in DLT data tape cartridge

The Symmetric Phase Recording head of the DLT tape drive uses an alternating angel for writing adjacent tracks.Therefore, the “guard bands” are not needed because the cross track interference is eliminated by the SPR. So, the widths of the track become narrow in DLT backup data tape. Narrow tracks of DLT tape make 416 tracks/inch track density.

So, more data volume can be recorded on fewer number of DLT data cartridges.
Few DLT data cartridges means low cost of floor space, data access time will be fast, and the operator intervention will also be reduced.

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