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Add historical notes on QIC tape drives and fix a couple of issues in mt(1).

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o Density code 0x5 is also known as QIC-11, and should have a footnote
   reference.
 o Add notes on QIC tape drives from the bug report.  These may help anyone
   trying to use a QIC drive.
 o Take out a "more more" instance found by igor.
 o Bump the man page date.

The PR is 14 years old, so it's past time to retire it.

PR:		doc/53596
Submitted by:	tedm@toybox.placo.com
Reviewed by:	bcr
Sponsored by:	Spectra Logic
This commit is contained in:
ken 2017-08-11 18:43:52 +00:00
parent 237b352c0a
commit 14889916c3
1 changed files with 57 additions and 3 deletions
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60
usr.bin/mt/mt.1
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@ -29,7 +29,7 @@
.\" @(#)mt.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd August 3, 2017
.Dd August 11, 2017
.Dt MT 1
.Os
.Sh NAME
@ -333,7 +333,7 @@ The default protection method used is Reed-Solomon CRC (protection method
1), as specified in ECMA-319.
The default protection information length used with Reed-Solomon CRC is
4 bytes.
To enable all settings except one more more settings, specify the
To enable all settings except one more setting, specify the
.Fl e
argument and then explicitly disable settings that you do not wish to
enable.
@ -463,7 +463,7 @@ Value Width Tracks Density Code Type Reference Note
0x01 12.7 (0.5) 9 32 (800) NRZI R X3.22-1983 2
0x02 12.7 (0.5) 9 63 (1,600) PE R X3.39-1986 2
0x03 12.7 (0.5) 9 246 (6,250) GCR R X3.54-1986 2
0x05 6.3 (0.25) 4/9 315 (8,000) GCR C X3.136-1986 1
0x05 6.3 (0.25) 4/9 315 (8,000) GCR C X3.136-1986 1,3
0x06 12.7 (0.5) 9 126 (3,200) PE R X3.157-1987 2
0x07 6.3 (0.25) 4 252 (6,400) IMFM C X3.116-1986 1
0x08 3.81 (0.15) 4 315 (8,000) GCR CS X3.158-1987 1
@ -566,6 +566,60 @@ NOTES
density code is 0x8c.
13. This density code (0x48) was also used for DAT-160.
.Ed
.Bd -literal -offset 2n
NOTE ON QIC STREAMERS
The following is a table of Data Cartridge types as used in the 1/4 inch
tape drives such as the Archive Viper 150, Wangtek 5525ES, and Tandberg
TDC4220 tape drives:
Value Reference Format Cartridge Type Capacity Tracks Length
----- --------- ------ -------------- -------- ------ ------
0x05 QIC-11 DC300 15MB 4 300ft
0x05 QIC-11 DC300XL/P 20MB 4 450ft
0x05 QIC-11 DC600 27MB 4 600ft
0x05 X3.136-1986 QIC-24 DC615A 15MB 9 150ft
0x05 X3.136-1986 QIC-24 DC300XL/P 45MB 9 450ft
0x05 X3.136-1986 QIC-24 DC600A 60MB 9 600ft
0x0F QIC-120 QIC-120 DC600A/DC6150 120MB 15 620ft
0x10 QIC-150 QIC-150 DC600XTD/DC6150 150MB 18 620ft
0x10 QIC-150 QIC-150 DC6250 250MB 18 1,020ft
0x11 QIC-320 QIC-525 DC6320 320MB 26 620ft
0x11 QIC-320 QIC-525 DC6525 525MB 26 1,020ft
0x1E QIC-1000C QIC-1000 DC9100/DL9135 1.0GB 30 760ft
0x1E QIC-1000C QIC-1000 DC9150 1.2GB 30 950ft
0x22 QIC-2GB(C) QIC-2GB DC9200 2.0GB 42 950ft
0x22 QIC-2GB(C) QIC-2GB DC9250 2.5GB 42 1,200ft
.Ed
.Pp
Notes:
.Pp
QIC-24, QIC-120, QIC-150 use fixed blocksize of 512 bytes, QIC-525, QIC-1000
and QIC-2GB can use blocksize of 1,024 bytes.
DDS (DAT) drives generally use variable blocks.
.Pp
QIC-02 and QIC-36 are interface standards for tape drives.
The QIC-02 and QIC-36 streamers such as the Wangtek 5250EQ are otherwise
identical to their SCSI versions (i.e.: Wangtek 5250ES).
.Pp
It seems that the 150MB and larger streamers cannot write QIC-24 9 track
formats, only read them.
.Pp
DC600A cartridges marked "10,000ftpi" can only be used as QIC-11, QIC-24,
and QIC-120 format.
DC600A cartridges marked 12,500ftpi can be used as both QIC-120 and QIC-150
format.
.Pp
Some manufacturers do not use "DC" on their cartridges.
Verbatim uses DL, Maxell uses MC, Sony uses QD, Quill uses DQ.
.Pp
3M/Imation & Fuji use DC.
Thus a DL6250, MC-6250, QD6250, DQ6250 are all identical media to a DC6250.
.Pp
QIC tape media is not "connected" to the take up reels and will de-spool
if the tape drive has dust covering the light sensor that looks for the end
of tape holes in the media.
.Sh ENVIRONMENT
.Bl -tag -width ".Ev TAPE"
.It Ev TAPE