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Add definitions for the industry-standard DLT density codes.

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Obtained from:	Quantum DLT8000 manual
MFC after:	1 week
This commit is contained in:
Joerg Wunsch 2002-07-09 11:26:09 +00:00
parent 7abc408094
commit bd275d1aed
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=99653
2 changed files with 10 additions and 0 deletions
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6
usr.bin/mt/mt.1
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@ -266,6 +266,9 @@ Value Width Tracks Density Code Type Reference Note
0x16 12.7 (0.5) 48 394 (10,000) MFM C X3.193-1990 1 0x16 12.7 (0.5) 48 394 (10,000) MFM C X3.193-1990 1
0x17 12.7 (0.5) 48 1,673 (42,500) MFM C X3B5/91-174 1 0x17 12.7 (0.5) 48 1,673 (42,500) MFM C X3B5/91-174 1
0x18 12.7 (0.5) 112 1,673 (42,500) MFM C X3B5/92-50 1 0x18 12.7 (0.5) 112 1,673 (42,500) MFM C X3B5/92-50 1
0x19 12.7 (0.5) 128 2,460 (62,500) RLL C DLTapeIII 6,7
0x1A 12.7 (0.5) 128 3,214 (81,633) RLL C DLTapeIV(20) 6,7
0x1B 12.7 (0.5) 208 3,383 (85,937) RLL C DLTapeIV(35) 6,7
0x1C 6.3 (0.25) 34 1,654 (42,000) MFM C QIC-385M 1,6 0x1C 6.3 (0.25) 34 1,654 (42,000) MFM C QIC-385M 1,6
0x1D 6.3 (0.25) 32 1,512 (38,400) GCR C QIC-410M 1,6 0x1D 6.3 (0.25) 32 1,512 (38,400) GCR C QIC-410M 1,6
0x1E 6.3 (0.25) 30 1,385 (36,000) GCR C QIC-1000C 1,6 0x1E 6.3 (0.25) 30 1,385 (36,000) GCR C QIC-1000C 1,6
@ -282,6 +285,7 @@ Value Width Tracks Density Code Type Reference Note
0x29 12.7 (0.5) 0x29 12.7 (0.5)
0x2A 0x2A
0x2B 12.7 (0.5) 3 ? ? ? C X3.267 5 0x2B 12.7 (0.5) 3 ? ? ? C X3.267 5
0x41 12.7 (0.5) 208 3,868 (98,250) RLL C DLTapeIV(40) 6,7
.Ed .Ed
.Bd -literal -offset 3n .Bd -literal -offset 3n
Code Description Type Description Code Description Type Description
@ -302,6 +306,8 @@ NOTES
5. Helical scan. 5. Helical scan.
6. This is not an American National Standard. The reference is based on 6. This is not an American National Standard. The reference is based on
an industry standard definition of the media format. an industry standard definition of the media format.
7. DLT recording: serially recorded track pairs (DLTapeIII and
DLTapeIV(20)), or track quads (DLTapeIV(35) and DLTapeIV(40)).
.Ed .Ed
.Sh ENVIRONMENT .Sh ENVIRONMENT
If the following environment variable exists, it is utilized by If the following environment variable exists, it is utilized by

4
usr.bin/mt/mt.c
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@ -438,6 +438,9 @@ struct densities {
{ 0x16, 394, 10000, "X3.193-1990" }, { 0x16, 394, 10000, "X3.193-1990" },
{ 0x17, 1673, 42500, "X3B5/91-174" }, { 0x17, 1673, 42500, "X3B5/91-174" },
{ 0x18, 1673, 42500, "X3B5/92-50" }, { 0x18, 1673, 42500, "X3B5/92-50" },
{ 0x19, 2460, 62500, "DLTapeIII" },
{ 0x1A, 3214, 81633, "DLTapeIV(20GB)" },
{ 0x1B, 3383, 85937, "DLTapeIV(35GB)" },
{ 0x1C, 1654, 42000, "QIC-385M" }, { 0x1C, 1654, 42000, "QIC-385M" },
{ 0x1D, 1512, 38400, "QIC-410M" }, { 0x1D, 1512, 38400, "QIC-410M" },
{ 0x1E, 1385, 36000, "QIC-1000C" }, { 0x1E, 1385, 36000, "QIC-1000C" },
@ -451,6 +454,7 @@ struct densities {
{ 0x26, 3816, 97000, "DDS-4" }, { 0x26, 3816, 97000, "DDS-4" },
{ 0x27, 3056, 77611, "Mammoth" }, { 0x27, 3056, 77611, "Mammoth" },
{ 0x28, 1491, 37871, "X3.224" }, { 0x28, 1491, 37871, "X3.224" },
{ 0x41, 3868, 98250, "DLTapeIV(40GB)" },
{ 0, 0, 0, NULL } { 0, 0, 0, NULL }
}; };