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| author | ken <ken@FreeBSD.org> | 2015-03-03 22:49:07 +0000 |
|---|---|---|
| committer | ken <ken@FreeBSD.org> | 2015-03-03 22:49:07 +0000 |
| commit | dfbad2a697f99452c87e337f83045a2b67e5fcd0 (patch) | |
| tree | 7e1fff1148f4d7ea88134f923332f9729d4e11d1 | |
| parent | b5c07cff76dc0055eb236091bad7d5987f75f58d (diff) | |
| download | FreeBSD-src-dfbad2a697f99452c87e337f83045a2b67e5fcd0.zip FreeBSD-src-dfbad2a697f99452c87e337f83045a2b67e5fcd0.tar.gz | |
Add density code for DAT-72, and notes on DAT-160.
As it turns out, the density code for DAT-160 (0x48) is the same
as for SDLT220. Since the SDLT values are already in the table,
we will leave them in place.
Thanks to Harald Schmalzbauer for confirming the DAT-72 density code.
lib/libmt/mtlib.c:
Add DAT-72 density code, and commented out DAT-160 density
code. Explain why DAT-160 is commented out. Add notes
explaining where the bpi values for these formats came from.
usr.bin/mt/mt.1:
Add DAT-72 density code, and add a note explaining that
the SDLTTapeI(110) density code (0x48) is the same as
DAT-160.
Sponsored by: Spectra Logic
MFC after: 3 weeks
| -rw-r--r-- | lib/libmt/mtlib.c | 17 | ||||
| -rw-r--r-- | usr.bin/mt/mt.1 | 6 |
2 files changed, 21 insertions, 2 deletions
diff --git a/lib/libmt/mtlib.c b/lib/libmt/mtlib.c index ad73381..f6acba2 100644 --- a/lib/libmt/mtlib.c +++ b/lib/libmt/mtlib.c @@ -568,6 +568,15 @@ static struct densities { * * IBM 3592 definitions obtained from second edition of the IBM * System Storage Tape Drive 3592 SCSI Reference (May 25, 2012). + * + * DAT-72 and DAT-160 bpi values taken from "HP StorageWorks DAT160 + * tape drive white paper", dated June 2007. + * + * DAT-160 / SDLT220 density code (0x48) conflict information + * found here: + * + * http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c01065117&sp4ts.oid=429311 + * (Document ID c01065117) */ /*Num. bpmm bpi Reference */ { 0x1, 32, 800, "X3.22-1983" }, @@ -613,6 +622,14 @@ static struct densities { { 0x42, 7398, 187909, "LTO-2" }, { 0x44, 9638, 244805, "LTO-3" }, { 0x46, 12725, 323215, "LTO-4" }, + { 0x47, 6417, 163000, "DAT-72" }, + /* + * XXX KDM note that 0x48 is also the density code for DAT-160. + * For some reason they used overlapping density codes. + */ +#if 0 + { 0x48, 6870, 174500, "DAT-160" }, +#endif { 0x48, 5236, 133000, "SDLTapeI(110)" }, { 0x49, 7598, 193000, "SDLTapeI(160)" }, { 0x4a, 0, 0, "T10000A" }, diff --git a/usr.bin/mt/mt.1 b/usr.bin/mt/mt.1 index 849774c..33c1c18 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 February 12, 2014 +.Dd March 3, 2014 .Dt MT 1 .Os .Sh NAME @@ -503,7 +503,8 @@ Value Width Tracks Density Code Type Reference Note 0x42 12.7 (0.5) 512 7,398 (187,909) C LTO-2 0x44 12.7 (0.5) 704 9,638 (244,805) C LTO-3 0x46 12.7 (0.5) 896 12,725 (323,215) C LTO-4 -0x48 12.7 (0.5) 448 5,236 (133,000) PRML C SDLTapeI(110) 6,8 +0x47 3.81 (0.25) ? 6,417 (163,000) CS DAT-72 +0x48 12.7 (0.5) 448 5,236 (133,000) PRML C SDLTapeI(110) 6,8,13 0x49 12.7 (0.5) 448 7,598 (193,000) PRML C SDLTapeI(160) 6,8 0x4A 12.7 (0.5) 768 ? C T10000A 10 0x4B 12.7 (0.5) 1152 ? C T10000B 10 @@ -556,6 +557,7 @@ NOTES density code is 0x90. 12. This is Exabyte 8500 uncompressed format. The compressed format density code is 0x8c. +13. This density code (0x48) was also used for DAT-160. .Ed .Sh ENVIRONMENT .Bl -tag -width ".Ev TAPE" |
