> Hi,
>
> here's a new view on my latest tape drive problem.
> It I use the amanda tool amtapetype -f /dev/nst0 on my system, after a
> while I can't start any new processes. I got some errors like "cannot
> fork" "out of memory" or I totally hangs.
>
> Increasing the limits of datasize, stacksize or openfiles solves the
> problem just for a few minutes.

you should use nrst0 - raw tape drive

anyway - i don't know what's tape block device for these days.