9840/9940 - Coexistence and Cartridge Initialization
Last updated on SEPTEMBER 26, 2017
Applies to:Sun StorageTek 9840B Tape Drive - Version Not Applicable and later
Sun StorageTek 9940B Tape Drive - Version Not Applicable and later
From the T9840 Tape Drive User's Reference Manual P/N 95739, topic, "Tape Cartridges", the 9840 tape cartridge has a data capacity of 20 GB, native (uncompressed) when written by a T9840A or T9840B drive in low-density data format. The same cartridge, when written by a T9840C drive in PRML high-density data format, has a data capacity of 40 GB native (uncompressed).
Cartridges written in low-density data format via T9840A or T9840B transports can be read, but not appended by T9840C drives. An attempt to append a low-density data cartridge on a T9840C drive will fail with FSC 1717.
Cartridges written in PRML high-density data format cannot be read nor appended by T9840A or T9840B drives. An attempt to read data from a high-density data cartridge by T9840A or T9840B drives will fail with FSC 3629.
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