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author | ken <ken@FreeBSD.org> | 2017-08-22 14:40:56 +0000 |
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committer | ken <ken@FreeBSD.org> | 2017-08-22 14:40:56 +0000 |
commit | 52f2fa0c0098861f3094865083aa0200af927b1b (patch) | |
tree | c7e514797d359a0f25cc0e54fb22b1bec57ae87b /usr.bin | |
parent | ca3e579275003137158a9777898948b09f7a1cf8 (diff) | |
download | FreeBSD-src-52f2fa0c0098861f3094865083aa0200af927b1b.zip FreeBSD-src-52f2fa0c0098861f3094865083aa0200af927b1b.tar.gz |
MFC r322410:
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r322410 | ken | 2017-08-11 12:43:52 -0600 (Fri, 11 Aug 2017) | 16 lines
Add historical notes on QIC tape drives and fix a couple of issues in mt(1).
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
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Approved by: re (gjb)
Diffstat (limited to 'usr.bin')
-rw-r--r-- | usr.bin/mt/mt.1 | 60 |
1 files changed, 57 insertions, 3 deletions
diff --git a/usr.bin/mt/mt.1 b/usr.bin/mt/mt.1 index 06de6d0..b196acf 100644 --- a/usr.bin/mt/mt.1 +++ b/usr.bin/mt/mt.1 @@ -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 |