More than 2 disk drives on one 451 controller?

[JARMOLOWSKI%ESDSDF.decnet at ge-crd.arpa]

We are trying to find out if anyone has used the XYLOGICS 451 Multibus
controller in a VME adapter to control more than two disks on a SUN 3/280
running SunOS version 3.4.

The SUN maintenance manager said there are two problems.  The hardware can
control four drives but the adapter has a single wide panel with room for
only two sets of connectors.  However, a second panel could be added to
mount additional connectors for the other drives.  The software problem
appears more difficult to solve.  The kernel only supports two drives. 

Has anyone tried to add drives in this manner and how did they make out?

	Harry Young