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Quantum DLT 7000 Tape System 5-107
MODE SENSE (6) / (10) Command (1Ah / 5Ah) (continued)
Table 5–51 MODE SENSE Block Descriptor - Field Descriptions
Field Name Description
Density Code The contents of this field match the density of the media, or 0 if the density is
unknown:
Density Code
00h
0Ah
16h
17h
18h
19h
1Ah
1Bh
Description
Use default density.
6667 bpi MFM serial cartridge tape X3B5/86-199 (read only).
10000 bpi MFM serial cartridge tape X3.193-1990 (read only).
42500 bpi MFM serial cartridge tape X3B5/91- 2.6 GB (DLTtape III
only).
Same as 17h, but with 56 track pairs vs. 24 - 6.0 GB (DLTtape III
only).
62500 bpi, 64 track pairs, serial cartridge tape - 10.0 GB (DLTtape
III only) /15.0 GB (DLTtape IIIxt only)
81633 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape
IV only)
85937 bpi, 52 quad pairs, serial cartridge tape - 35.0 GB
The density codes above are the preferred codes used to define density.
Additionally, the codes listed below may be used, though use of the Data
Compression Page is preferred (these codes are only returned if they were set using
the MODE SELECT command; note that the codes may be different than the code
set using MODE SELECT if the selection was made while the tape was not at BOT):
80h 62500 bpi, 64 track pairs, serial cartridge tape - 10.0 GB (DLTtape III)
/15.0 GB (DLTtape IIIxt) without compression
81h 62500 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape III)
/30.0 GB (DLTtape IIIxt) with compression
82h 81633 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape IV)
without compression
83h 81633 bpi, 64 track pairs, serial cartridge tape - 40 GB (DLTtape IV) with
compression
84h 85937 bpi, 52 quad tracks, serial cartridge tape - 35 GB without
compression
85h 85937 bpi, 52 quad tracks, serial cartridge tape - 70 GB with
compression