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These were obtained from IBM specs and actual tapes/drives. Standard LTO-10 cartriges hold 30TB raw, 75TB with 2.5:1 compression. Premium LTO-10 cartridges hold 40TB raw, 100TB with 2.5:1 compression. LTO-10 tape drives are not backward compatible with previous generation LTO tapes. (This is a change from older generation drives.) Since the Premium tape is a new thing for LTO, we'll call this density code LTO-10P vs. the standard LTO-10. The barcode identifier for LTO-10 tapes is "LA"; the barcode identifier for LTO-10P tapes is "PA". LTO-10 cartridges contain 1035m of tape, while LTO-10 Premium cartridges contain 1337m of tape and have slightly higher density. (Obtained from MAM data on actual tape cartridges and the density report, obtained via 'mt getdensity'.) LTO-10 cartridges use a polyethylene naphthalate (PEN) film substrate. LTO-10 Premium cartridges use an Aramid (aromatic polyamide) substrate that is thinner and stronger, allowing a longer tape to fit in the same cartridge form factor. usr.bin/mt/mt.1: Add density codes and specs for LTO-10 and LTO-10P. lib/libmt/mtlib.c: Add density codes for LTO-10 and LTO-10P. Sponsored by: Spectra Logic (cherry picked from commit 930486f9be5c884d1d2f0aae9f81a3f5af1f2718) |
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