🚀 go-pugleaf

This has to be the hundredth time this question has been asked. 

I think you'll find that the problem is due to the fact that (at least
in 2.x) the SCSI tape driver assumes variable block size, and the
Archive (along with lots of other drives) wants fixed blocks. What you
have to do is reset the driver. Attached is a bit of code posted to
(the ancestor of) this newsgroup last year; compile it, and run it
once to reset the driver. Your Archive drive should then work. You'll
have to rerun it if you reboot; if the Archive (or other fixed
blocksize device) is the only device you use the SCSI tape driver
with, you might want to run it automatically from rc.local at tboot
time.

I would have responded by mail, but this question shows up often
enough that I thought someone else out there might also be wondering,
and the code is really pretty short.

--Steve Anderson

----------------(included file setmtd.c)--------------------
/*
 * setmd - set SCSI tape driver to a fixed block size
 *       by John L. Chmielewski
 *       Tue Feb 19, 1991
 */

#include <fcntl.h>
#include <sys/types.h>
#include <nextdev/scsireg.h>

#define RSTDEVICE    "/dev/rst0"
#define BLOCKSIZE    512

main()
{
  int fd, size = BLOCKSIZE;

  if ((fd = open(RSTDEVICE, O_RDWR)) < 0)
    {
      perror(RSTDEVICE);
      exit(1);
    }
  if (ioctl(fd, MTIOCFIXBLK, &size) < 0)
    {
      perror("ioctl");
      exit(1);
    }
  (void) close(fd);
  return 0;
}