dag@gorgon.uucp (Daniel A. Glasser) (04/22/91)
This is touched on in the FAQ posting, but I've run into a bit of a snag;
I have a 60 meg tape drive (TECMAR QT-60i) connected to a Wangtek PC-60
controller, and it works just fine with the ISC WT driver. I have been
retensioning my tapes by booting DOS from a floppy and using the utilities
that came with the drive. I would like to do it without rebooting my
machine. I've been trying to write a retension utility that uses the
wt(7)'s documented RETENS command to ioctl(), but seem to be missing
something. None of the documentation that came with my system says
anything more about this command to the wt driver beyond the name
of the symbol and that it's supposed to tell the device driver to
retension the tape. Nothing about what other arguments I might need.
I wrote the program included below to do this, and discovered that I
always get an 'invalid argument' error back from the ioctl(). If I
open /dev/tape, the tape moves a bit but does not retension. If I
open /dev/ntape (no-rewind) the tape drive seems to go into eternal
retensioning. I ran the old /dev/tape version to get it to stop.
What's the real scoop on this ioctl() for the wt driver? Does anyone
have a program to do the retensioning that works and that they are
willing to share with me? Is more information available on the wt(7)
ioctl()s?
Please reply via e-mail as I don't always get all the news (space problems)
and can't always read all of what I do get. Thanks.
[.signature is at end] Daniel A. Glasser
dag%gorgon@persoft.com
-or- dag@persoft.com
-or- ...!uwvax!persoft!gorgon!dag
-or- ...!uwvax!persoft!dag
----- Beginning of program ----
#include <stdio.h>
#include <sys/types.h>
#include <sys/wtioctl.h>
#include <fcntl.h>
#ifndef NOREWIND
#define TAPE_DEVICE "/dev/tape"
#else
#define TAPE_DEVICE "/dev/ntape"
#endif
main()
{
int status;
int tapefd;
extern int errno;
/* Open the tape drive. This appears to be okay */
tapefd = open(TAPE_DEVICE, O_RDONLY);
if (tapefd < 0)
{
perror("retens");
exit(1);
}
errno = 0; /* Reset errno... */
/* Try to retension the tape. */
status = ioctl(tapefd, RETENS, 0);
if (status < 0) perror("retens"); /* On failure, tell all. */
/* print out the status */
printf("Status on retension was %d\n", status);
/* close the drive now. */
close(tapefd);
/* leave the program. */
exit(0);
}
---- end of program -----
--
Daniel A. Glasser One of those things that goes
dag%gorgon@persoft.com "BUMP! (ouch!)" in the night.support@ism.isc.com (Support Account) (04/23/91)
In article <1991Apr21.174450.26570@gorgon.uucp> dag@gorgon.uucp (Daniel A. Glasser) writes: >I have a 60 meg tape drive (TECMAR QT-60i) connected to a Wangtek PC-60 >controller, and it works just fine with the ISC WT driver. I have been >retensioning my tapes by booting DOS from a floppy and using the utilities >that came with the drive. I would like to do it without rebooting my This is a perfect opportunity to mention a new update disk for Interactive Unix, SSU7, which includes a new program, "mt", for manipulating tape devices. This program works with both the Wangtek QIC-02 devices and SCSI tapes, and will allow users to rewind, retension, erase tapes, as well as write and seek file marks. Also included in this update disk are fixes for the Adaptec SCSI tape driver and the Wangtek QIC-02 driver. Multiple volume backups now work with Adaptec SCSI tapes, and multiple tape drives (up to 4) can now be connected to each Adaptec SCSI interface. This update will run on Interactive Unix V2.2.1 (if you do not have V2.2.1 you will have to upgrade - V2.2 users can get a free upgrade to V2.2.1). Users can order this and the other updates listed below from their distributor or from Interactive's free warranty support line, (213) 453 8649. List of available fix disks: for V2.0.* : FX00001-2Z 5.25" X0 Update - Bell Technologies ICC board fix - 2.0 FX00002-2Z 3.5" X0 Update FX00004-2Z 5.25" X1 Update - tbl program fix; release 2.0 of TPW FX00003-2Z 3.5" X1 Update FX00006-2Z 5.25" X2 Update - SCO Foxbase+ file & record locking fix FX00005-2Z 3.5" X2 Update rel. 2.0.* FX00008-2Z 5.25" X3 Update - VGA Server support under 1.0 rel. X11 FX00007-2Z 3.5" X3 Update FX00010-2Z 5.25" X4 Update - SCO Professional 2.0 fix; release 2.0.* FX00009-2Z 3.5" X4 Update FX00012-2Z 5.25" X5 Update - asy fix - rel. 2.0.* fixes FX00011-2Z 3.5" X5 Update bidirectional modem control FX00014-2Z 5.25" X6 Update - ttymap fixes for Europe - release 2.0.* FX00013-2Z 3.5" X6 Update FX00016-2Z 5.25" X8 Update - Psuedo-TTY drivers for PCI - 2.0.* FX00015-2Z 3.5" X8 Update FX00018-2Z 5.25" X7 Update - sendmail fix - release 2.0.* FX00017-2Z 3.5" X7 Update fixes many sendmail problems FX00028-2Z 5.25" Y1 Update poll-on-pipes enhancement - release 2.0.* FX00029-2Z 3.5" Y1 Update FX00027-2Z 3.5" Y3 Update dossette fix - 2.0.* support for 3.5" media for V2.2: FX00019-2Z 5.25" SSU.1a Update Posix Fixes (OS only) user becomes FX00023-2Z 3.5" SSU.1a Update Posix compliant FX00020-2Z 5.25" SSU.1b Update Posix Fixes (SDS portion) libc.a fix FX00024-2Z 3.5" SSU.1b Update FX00021-2Z 5.25" SSU.2 Update msg.h Fix msgctl call was changed to FX00025-2Z 3.5" SSU.2 Update an int from an unshort. FX00022-2Z 5.25" SSU.3 Update VP/ix - Windows 3.0 Support FX00026-2Z 3.5" SSU.3 Update FX00032-2Z 5.25" SSU.4a Update TCP/ip Update fixed sockets with FX00033-2Z 3.5" SSU.4a Update KEEPALIVE option FX00034-2Z 5.25" SSU.4b Update NFS Update (requires SSU.4a) FX00035-2Z 3.5" SSU.4b Update fixed lockd core dumping FX00030-2Z 5.25" SSU.5 Update Dossette fix - 2.2 "floppy not present" FX00031-2Z 3.5" SSU.5 Update FX00038-2Z 5.25" SSU.6 Update Timezone fix (non-US timezone fix, FX00039-2Z 3.5" SSU.6 Update system would be unusable) FX00042-2Z 5.25" SSU.8 Update Kconfig fix - limit of 100 devices FX00043-2Z 3.5" SSU.8 Update in mdevice file FX00036-2Z 5.25" SSU.10 Update New Looking Glass Product FX00037-2Z 3.5" SSU.10 Update FX00044-2Z 5.25" SSU.14 Update LP Scheduler fix - Print service will FX00045-2Z 3.5" SSU.14 Update not remain on-line after printer fault. NT00001 5.25" Network Drivers NT00002 3.5" Network Drivers UP00242 5.25" 2.2.1 Update UP00244 3.5" 2.2.1 Update SP00025 5.25" EISA Update SP00026 3.5" EISA Update FX00046-2Z 5.25" OS Security Update (2.0.2, 2.2, 2.2.1) FX00047-2Z 3.5" OS Security Update FX00048-2Z 5.25" SDS Security Update (2.0.2, 2.2, 2.2.1) FX00049-2Z 3.5" SDS Security Update FX00050 5.25 SSU.7 Update Adaptec SCSI tape, Wangtek tape, FX00051 3.5 mt tape utility program ... ISC support
cpcahil@virtech.uucp (Conor P. Cahill) (04/23/91)
dag@gorgon.uucp (Daniel A. Glasser) writes: >I have a 60 meg tape drive (TECMAR QT-60i) connected to a Wangtek PC-60 >controller, and it works just fine with the ISC WT driver. I have been >retensioning my tapes by booting DOS from a floppy and using the utilities >that came with the drive. I would like to do it without rebooting my >machine. I've been trying to write a retension utility that uses the >wt(7)'s documented RETENS command to ioctl(), but seem to be missing First off, I don't know why you bother to retension the tapes, I have been using various QIC tapes for several years and have yet to run into a problem that would be solved by retensioning (so I dont bother anymore) Yes, I flirt with danger on a daily basis :-) Anyway, here is the source for a tape command utility that gives you the capability to do what you want. #!/bin/sh # This is a shell archive (produced by shar 3.49) # To extract the files from this archive, save it to a file, remove # everything above the "!/bin/sh" line above, and type "sh file_name". # # made 04/23/1991 13:03 UTC by cpcahil@virtech # Source directory /a/corp/src/cmd/tapecmd # # existing files will NOT be overwritten unless -c is specified # # This shar contains: # length mode name # ------ ---------- ------------------------------------------ # 596 -r--r--r-- Makefile # 3831 -r--r--r-- tapecmd.c # # ============= Makefile ============== if test -f 'Makefile' -a X"$1" != X"-c"; then echo 'x - skipping Makefile (File already exists)' else echo 'x - extracting Makefile (Text)' sed 's/^X//' << 'SHAR_EOF' > 'Makefile' && # # (c) Copyright 1991 Conor P. Cahill (uunet!virtech!cpcahil). # You may copy, distribute, and use this software as long as this # copyright statement is not removed. # # # This is the Makefile for the tapecmd utility # # $Id: Makefile,v 1.2 91/04/23 09:03:03 cpcahil Exp $ # CC=cc #DFLAGS=-DDEBUG=40 CFLAGS= -O $(DFLAGS) LDFLAGS= LIBS= INSTDIR=/usr/local/bin X SRCS=tapecmd.c OBJS=$(SRCS:.c=.o) EXE=tapecmd X all: $(EXE) X install: $(INSTDIR)/$(EXE) X $(INSTDIR)/$(EXE): $(EXE) X -rm -f $@.old X -mv -f $@ $@.old X cp $? $@ X -rm -f $@.old X X $(EXE): $(OBJS) X $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) X SHAR_EOF chmod 0444 Makefile || echo 'restore of Makefile failed' Wc_c="`wc -c < 'Makefile'`" test 596 -eq "$Wc_c" || echo 'Makefile: original size 596, current size' "$Wc_c" fi # ============= tapecmd.c ============== if test -f 'tapecmd.c' -a X"$1" != X"-c"; then echo 'x - skipping tapecmd.c (File already exists)' else echo 'x - extracting tapecmd.c (Text)' sed 's/^X//' << 'SHAR_EOF' > 'tapecmd.c' && /* X * (c) Copyright 1990 Conor P. Cahill (uunet!virtech!cpcahil). X * You may copy, distribute, and use this software as long as this X * copyright statement is not removed. X */ #include <sys/types.h> #include <sys/wtioctl.h> #include <sys/termio.h> X #include <fcntl.h> #include <stdio.h> #include <ctype.h> X #define SLEEP_TIME 7 #define TAPE_ERASE 0x01 #define TAPE_RETEN 0x02 #define TAPE_REWIND 0x04 #define TAPEFILE_NOREWIND "/dev/rnmt0" #define TAPEFILE_REWIND "/dev/rmt0" #define DEFAULT_FILENAME TAPEFILE_REWIND X static char rcs_hdr[] = "$Id: tapecmd.c,v 1.4 91/04/23 09:03:05 cpcahil Exp $"; X int nointeract; X main(argc,argv) X int argc; X char **argv; { X X char * command; X int count = 1; X extern int errno; X int fd; X char * filename = DEFAULT_FILENAME; X int numtapes = 1; X int tape_cmd; X int tape_count = 0; X X /* X * if silent (no interaction) mode X */ X if( (argc > 1) && (strcmp(argv[1],"-n")) == 0 ) X { X nointeract = 1; X argc--; X argv++; X } X X switch(argc) X { X case 2: X command = argv[1]; X break; X case 3: X command = argv[1]; X if( isdigit(argv[2][0]) ) X { X count = atoi(argv[2]); X } X else X { X filename = argv[2]; X } X break; X case 4: X command = argv[1]; X if( isdigit(argv[2][0]) ) X { X count = atoi(argv[2]); X filename = argv[3]; X } X else X { X filename = argv[2]; X count = atoi(argv[3]); X } X break; X default: X usage(argv[0]); X break; X X } /* switch(argc... */ X X /* X * Now check arguments... X * count must be greater than zero. X */ X X if( count <= 0 ) X { X fprintf(stderr,"Illegal count specified %d\n",count); X usage(argv[0]); X } X if( strncmp(command,"ret",3) == 0 ) X { X tape_cmd = TAPE_RETEN; X } X else if( strncmp(command,"rew",3) == 0) X { X tape_cmd = TAPE_REWIND; X if( strcmp(filename,TAPEFILE_NOREWIND) == 0 ) X { X if( filename != DEFAULT_FILENAME ) X { X fprintf(stderr,"File name changed to %d %s\n", X TAPEFILE_REWIND, X "to perform rewind"); X } X filename = TAPEFILE_REWIND; X } X } X else if( command[0] == 'e' ) X { X tape_cmd = TAPE_ERASE; X } X else X { X fprintf(stderr,"Illegal command: %s\n", command); X usage(argv[0]); X } X X X while( count-- > 0 ) X { X if( ! nointeract ) X { X (void) change_tape(++tape_count,tape_cmd); X } X X if( (fd=open(filename,O_RDWR)) == -1 ) X { X fprintf(stderr,"Failed to open %s, errno = %d\n", X filename, errno); X exit(10); X } X X if( tape_cmd != TAPE_REWIND ) X { X /* X * make sure the tape has stablized by sleeping a X * bit before sending the ioctl X */ X sleep(SLEEP_TIME); X X if( ioctl(fd,WTQICMD,tape_cmd) == 1) X { X fprintf(stderr,"Ioctl failed, errno = %d\n", X errno); X fprintf(stderr,"Operation may not have %s\n", X "succeeded"); X } X } X X close(fd); X } X exit(0); } X usage(pgm) X char * pgm; { X char * ptr; X char * strrchr(); X X if( (ptr=strrchr(pgm,'/')) != (char *) 0) X { X pgm = ptr+1; X } X X fprintf(stderr,"Usage: %s tape_command [-n] [count] [tapefilename]\n", X pgm); X fprintf(stderr,"Where tape_command can be: %s\n", X "rewind, retension, or erase"); X fprintf(stderr," -n signifies no interaction\n"); X fflush(stderr); X exit(10); } X change_tape(cnt,cmd) X int cnt; X int cmd; { X char buffer[120]; X char * job; X char * suffix; X X switch(cnt) X { X case 1: X suffix = "st"; X break; X case 2: X suffix = "nd"; X break; X case 3: X suffix = "rd"; X break; X default: X suffix = "th"; X break; X X } /* switch(cnt... */ X X switch(cmd) X { X case TAPE_REWIND: X job = "rewind"; X break; X X case TAPE_RETEN: X job = "retension"; X break; X X default: X job = "erase"; X break; X X } /* switch(cmd... */ X X fprintf(stdout,"Please place the %d%s tape in the drive and\n", X cnt, suffix); X fprintf(stdout,"press <return> to %s it",job); X fflush(stdout); X X (void) ioctl(0,TCFLSH, 0); X (void) read(0,buffer,120); } X SHAR_EOF chmod 0444 tapecmd.c || echo 'restore of tapecmd.c failed' Wc_c="`wc -c < 'tapecmd.c'`" test 3831 -eq "$Wc_c" || echo 'tapecmd.c: original size 3831, current size' "$Wc_c" fi exit 0 -- Conor P. Cahill (703)430-9247 Virtual Technologies, Inc. uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160 Sterling, VA 22170