Xylogics 451 with Fujitsu M2372K and M2351

[Jeffery Cavallaro]

I am having a problem getting a Xylogics 451 controller to control a
Fujitsu M2372K (892Mb) and a Fujitsu M2351 (280Mb) at the same time.  I
can use either drive separately (formatting, booting, etc).  The
configuration is as follows:

	SUN-3/160
	XY 451
	drive 0: M2372K
	drive 1: M2351
	SunOS 3.5

While autoconfiging during boot, the controller and each drive is
reported, with the label information summary for each drive.  Immediately
after I get the following error messages:

	xy0 and xy1 are of the same type (0) but with different geometries
	xy1: cannot read label

- From then on, xy1 is dead.

Per usual, I get different stories depending on who I talk to.  One SUN
tech rep says that the 892Mb drives cannot be mixed.  Xylogics says that
there should be no problem.  Does anyone have any ideas???

Thanks,
Jeff.

Oh, one more bit of info.  xy0 may have been formatted with the 4.0
distribution, whereas xy1 was formatted with the 3.5 distribution.  (The
reason being that we downgraded from 4.0 to 3.5 for various reasons, and
never reformatted).  Could this cause the problem?