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| author | Kenneth D. Merry <ken@FreeBSD.org> | 2026-03-02 19:13:47 +0000 |
|---|---|---|
| committer | Kenneth D. Merry <ken@FreeBSD.org> | 2026-03-11 18:33:17 +0000 |
| commit | 7fe98ee4d49ad4a7c5e994a999567aec4b34f84e (patch) | |
| tree | eabf901ab690985d35131c37b51ed962c76ae3b5 /contrib | |
| parent | b373cf4ff1406dca10985362aff9d9f3a3fa351d (diff) | |
mt(1)/libmt: Add LTO-10 density codes and specs.
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)
Diffstat (limited to 'contrib')
0 files changed, 0 insertions, 0 deletions
