TDU, TDF and "Doing magtape image archiving" [was: HP 7980S ...]

All, Oooh... hrrm. Didn't realize there was such a lot of interest in those (already). The toolkit is basically an API in the shape of a C library, which handles all the nitty gritty of the TDF (Tape Distribution Format, aka Tape Dump Format) file format stuff. The user interface for reading physical tapes to image, writing the images back to physical tapes, and doing all sorts of weird stuff with the image files, is handled by a single program called TDU, the T... Utility. Its synopsis is similar to that of 'tar': -------------------------------------------------------- TDU version 1.0.15 for OpenBSD on VAX. Usage: tdu [-f file] [-m maxchunk] [-p path] [-v] cmd [args] where 'cmd' is one of {c|e|i|p|r|t|w|x} -------------------------------------------------------- Also, several conversion tools exist to convert between TDF and TAP (used in Ersatz-11 and SimH simlators) and raw formats. The tookit is currently in its final First Release testing, at version 1.0.15. It has been tested with the following systems: - DOS 6.22 and Win32 DOS box (with ASPI layers for tape I/O) - Windows 9X, NT 4.0 and 2K, Win32 console app - DEC Ultrix-32 V4.5 both VAX and MIPS - OpenBSD/vax V3.1 - DEC Ultrix-11 (on PD-11/83, both real and emulated) - SunOS 4.1.4 on SPARCstation - Solaris (cant memebr which one) - SGI IRIX Porting to VMS is being done by Robert Alan Byer, of SimH/VMS fame. Thanks to Tim Shoppa for helping me out with one of those 'does this ever happen?' issues ... :) I have added TDF support to SimH, so you can just do a simh> mount mt0: /u/dist/rsx11mplus-4.2-tp1.tdf /wprotect /tdf in SinH and then boot the tape. The goal, of course, is to be able to easly get an archive of software up and running. Here's sample output of what an RSX-11M Plus V4.2 tape looks like: -------------------------------------------------------- (vaxlab)$ tdu tfv rsx11mplus-4.2-tp1.tdf TDF version : 1 CRC-32 : 0x32b466df Part # : BB-J083H-BC Serial Number : ME109856 Tape Label : RSX-11M-PLUS V4.2 MT:1600 Description : BRUSYS STANDALONE COPY SYSTEM Copyright : 1989 Owner : DIGITAL EQUIPMENT CORPORATION File 0 : blocksize 512 (439 blocks) File 1 : blocksize 80 (2 blocks) File 2 : blocksize 80 (1 blocks) 2 : blocksize 512 (2 blocks) 2 : blocksize 80 (1 blocks) 2 : blocksize 512 (1 blocks) 2 : blocksize 80 (2 blocks) 2 : blocksize 2560 (1 blocks) 2 : blocksize 80 (1 blocks) 2 : blocksize 4144 (28 blocks) 2 : blocksize 560 (1 blocks) File 3 : blocksize 80 (2 blocks) File 4 : blocksize 80 (2 blocks) File 5 : blocksize 80 (1 blocks) 5 : blocksize 512 (2 blocks) ....... -------------------------------------------------------- All I need to do is testing magtapes written with TDU, and I need the HP to work for that. The code will be released for more testing after I merge in Robert Byer's VMS stuff when he's done. Cheers, Fred