this drive badly reports it's minimal blocksize 512 and maximum 512 while
it can accept up to 32K (or maybe more) with variable-blocksize mode.

my very-temporary fix is removing is commenting this in st.c:
	//else if (bp->b_bcount < st->blkmin ||
	//    (st->blkmax && bp->b_bcount > st->blkmax)) {
	//	printf("%s: bad request, must be between %d and %d\n",
	//	    st->sc_dev.dv_xname, st->blkmin, st->blkmax);
	//	bp->b_error = EIO;
	//	goto bad;
	//}


but still i have to do mt setblk 0 before every tar.

how to do it in mode "elegant" and usable way? is such case possible in
quirks table (i've tried without success) or should i add "special" quirk for this
drive.

netbsd 1.5